ORCID Profile
0000-0002-4250-7489
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Chemical Engineering | Membrane And Separation Technologies | Membrane and Separation Technologies | Food Sciences | Industrial Biotechnology | Macromolecular and Materials Chemistry | Biocatalysis and Enzyme Technology | Nanotechnology | Colloid And Surface Chemistry | Food Engineering | Chemical Characterisation of Materials | Physical Chemistry Not Elsewhere Classified | Food Engineering | Interdisciplinary Engineering | Chemical Engineering Not Elsewhere Classified | Food Processing | Structural Chemistry | Synthesis of Materials | Carbon Capture Engineering (excl. Sequestration) | Heat And Mass Transfer Operations | Characterisation Of Macromolecules | Artificial Intelligence and Image Processing | Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) | Climate Change Processes | Simulation and Modelling | Nanotechnology | Engineering/Technology Instrumentation | Food Processing | Other Food Sciences | Characterisation of Biological Macromolecules | Interdisciplinary Engineering not elsewhere classified | Colloid and Surface Chemistry | Pattern Recognition and Data Mining | Nanomaterials | Turbulent Flows | Analytical Chemistry not elsewhere classified | Macromolecular and Materials Chemistry not elsewhere classified | Food Sciences not elsewhere classified | Bioprocessing, Bioproduction and Bioproducts | Industrial Microbiology (incl. Biofeedstocks) | Nanobiotechnology
ANZSRC Socio-Economic Objective (SEO)
Dairy products | Management of Greenhouse Gas Emissions from Electricity Generation | Climate Change Mitigation Strategies | Water Services and Utilities | Biofuel (Biomass) Energy | Human Pharmaceutical Treatments (e.g. Antibiotics) | Polymeric materials (e.g. paints) | Expanding Knowledge in the Chemical Sciences | Scientific Instruments | Fabricated metal products | Atmospheric Processes and Dynamics | Cheese | Processed Milk and Cream (incl. Powder, Evaporated and Condensed) | Whey | Health related to ageing | Human Biological Preventatives (e.g. Vaccines) | Chemical sciences | Physical sciences | Oil and Gas Extraction | Transformation of Coal into Gaseous Fuels | Global climate change adaptation measures | Organic industrial chemicals not classified elsewhere | Environmentally Sustainable Plant Production not elsewhere classified | Climate Change Models | Energy storage | Gas—conversion to liquid fuels | Coal—conversion to liquid fuels | Preventive Medicine | Instrumentation not elsewhere classified | Nutraceuticals and Functional foods | Transformation of Coal into Liquid Fuels | Processed food products and beverages not elsewhere classified | Expanding Knowledge in Technology | Industrial chemicals and related products | Oil and Gas Refining | Industrial Crops not elsewhere classified | Water services and utilities | Industrial Instruments | Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Engineering | Expanding Knowledge in the Biological Sciences | Industrial gases |
Related Links
Publications
Facile Pretreatment of Bacillus circulans β-Galactosidase Increases the Yield of Galactosyl Oligosaccharides in Milk and Lactose Reaction Systems
Publisher: American Chemical Society (ACS)
Date: 23-12-2009
DOI: 10.1021/JF9018596
Abstract: The commercially available preparation of beta-galactosidase from Bacillus circulans , known as Biolacta FN5, has been extensively used in the production of prebiotic galactooligosaccharides (GOS). This study focuses on characterizing the production of GOS in two reaction systems: 10% lactose (w/v) in buffer and skim milk. Analysis of the temperature dependence of the GOS yield along with the relative rates of GOS synthesis and degradation leads to the finding that GOS degradation activity was selectively decreased in Biolacta FN5 above 40 degrees C. Facile heat treatment of Biolacta FN5 solution prior to use allowed for GOS yields to be significantly increased in both reaction systems.
The application of ultrasound to dairy ultrafiltration: The influence of operating conditions
Publisher: Elsevier BV
Date: 07-2007
Crosslinked PEG and PEBAX Membranes for Concurrent Permeation of Water and Carbon Dioxide
Publisher: MDPI AG
Date: 23-12-2015
Crystallisation of minerals from concentrated saline dairy effluent
Publisher: Elsevier BV
Date: 09-2016
DOI: 10.1016/J.WATRES.2016.05.074
Abstract: An understanding of crystallisation within saline effluents is important for the design of both brine crystallisers and brine disposal ponds. In this work, crystallisation of a saline effluent concentrate from the Australian dairy industry has been examined at 22 wt% and 30 wt% total solids and at temperatures between 10 and 70 °C. The precipitation occurs more rapidly at higher temperatures. This trend is dictated by precipitation of calcium phosphate salts, albeit the major constituents of the mixture are NaCl and lactose. The crystallisation induction time can be shortened by introducing cavitation induced by ultrasound. In particular, the use of two short acoustic pulses between 3.7 J/g and 16 J/g at 20 kHz spaced ten minutes apart has maximum impact upon both induction time and crystal size. It is believed that the first ultrasound pulse either generates new nuclei or enhances the mass transfer of solute toward the surface of sub-micron growing crystals. Conversely, the second pulse disrupts the growing crystals and forms secondary nuclei. The ultrasound cannot shift the solution equilibrium and so is not able to improve the low crystal yield. To increase this total yield, further evaporation is necessary. The work provides direction to personnel in the dairy industry of the feasibility of brine crystallisation with respect to energy demand and solid recovery.
Demonstration of a Concentrated Potassium Carbonate Process for CO2 Capture
Publisher: American Chemical Society (ACS)
Date: 10-2013
DOI: 10.1021/EF4014746
The use of ultrasonic feed pre-treatment to reduce membrane fouling in whey ultrafiltration
Publisher: Elsevier BV
Date: 03-2014
Critical analysis of quantitative indicators of cell disruption applied to Saccharomyces cerevisiae processed with an industrial high pressure homogenizer
Publisher: Elsevier BV
Date: 2013
Buffalo milk fat globules and their biological membrane: in situ structural investigations
Publisher: Elsevier BV
Date: 2015
The effects of high-intensity ultrasound on the structural and functional properties of α-Lactalbumin, β-Lactoglobulin and their mixtures
Publisher: Elsevier BV
Date: 10-2012
Bioactives from Whey: A Sustainable Approach to Enzymatic Production of Sialyl-N-acetyllactosamine
Publisher: American Chemical Society (ACS)
Date: 08-04-2022
Can the addition of carbon nanoparticles to a polyimide membrane reduce plasticization?
Publisher: Elsevier BV
Date: 08-2017
Novel post-combustion capture technologies on a lignite fired power plant - results of the CO2CRC/H3 capture project
Publisher: Elsevier BV
Date: 2000
Quantitative evaluation of the ease of rupture of industrially promising microalgae by high pressure homogenization
Publisher: Elsevier BV
Date: 07-2013
DOI: 10.1016/J.BIORTECH.2013.04.074
Abstract: The susceptibility to rupture of the microalgae Nannochloropsis sp., Chlorella sp. and Tetraselmis suecica by high pressure homogenization was compared quantitatively to the yeast Saccharomyces cerevisiae. Methods for quantifying cell rupture were investigated including cell counting, turbidity, metabolite release and particle sizing. Cell counting was the only reliable method for quantitative comparisons of all microalgae, with turbidity complicated by agglomeration of cell debris for T. suecica, and measurement of metabolite release affected by degradation occurring for all microalgae after significant rupture. The rupture of all microalgae followed exponential decay as a function of number of passes. The pressure required to achieve rupture of 50% of the cells per pass was determined to be 170, 1070, 1380, and ca. 2000 bar for Tetraselmis sp., Chlorella sp., S. cerevisiae, and Nannochloropsis sp., respectively. These results extend the criteria for selecting microalgae for industrial applications beyond consideration of growth and compositional attributes.
The effect of surface-active solutes on bubble coalescence in the presence of ultrasound
Publisher: American Chemical Society (ACS)
Date: 03-2005
DOI: 10.1021/JP0476444
Abstract: The sonication of an aqueous solution generates cavitation bubbles, which may coalesce and produce larger bubbles. This paper examines the effect of surface-active solutes on such bubble coalescence in an ultrasonic field. A novel capillary system has been designed to measure the change in the total volume resulting from the sonication of aqueous solutions with 515 kHz ultrasound pulses. This volume change reflects the total volume of larger gas bubbles generated by the coalescence of cavitation bubbles during the sonication process. The total volume of bubbles generated is reduced when surface-active solutes are present. We have proposed that this decrease in the total bubble volume results from the inhibition of bubble coalescence brought about by the surface-active solutes. The observed results revealed similarities with bubble coalescence data reported in the literature in the absence of ultrasound. It was found that for uncharged and zwitterionic surface-active solutes, the extent of bubble coalescence is affected by the surface activity of the solutes. The addition of 0.1 M NaCl to such solutes had no effect on the extent of bubble coalescence. Conversely, for charged surface-active solutes, the extent of bubble coalescence appears to be dominated by electrostatic effects. The addition of 0.1 M NaCl to charged surfactant solutions was observed to increase the total bubble volume close to that of the zwitterionic surfactant. This suggests the involvement of electrostatic interactions between cavitation bubbles in the presence of charged surfactants in the solution.
Purification of aqueous amine solvents used in post combustion CO2 capture: A review
Publisher: Elsevier BV
Date: 09-2012
Amino Acids as Carbon Capture Solvents: Chemical Kinetics and Mechanism of the Glycine + CO2 Reaction
Publisher: American Chemical Society (ACS)
Date: 26-06-2013
DOI: 10.1021/EF400413R
Post-combustion Capture of CO2: Results from the Solvent Absorption Capture Plant at Hazelwood Power Station Using Potassium Carbonate Solvent
Publisher: American Chemical Society (ACS)
Date: 28-09-2012
DOI: 10.1021/EF3015519
CO2 separation using surface-functionalized SiO2 nanoparticles incorporated ultra-thin film composite mixed matrix membranes for post-combustion carbon capture
Publisher: Elsevier BV
Date: 10-2016
A Study of the Mass Transfer of CO2through Different Membrane Materials in the Membrane Gas Absorption Process
Publisher: Informa UK Limited
Date: 2008
In situ layer-by-layer assembled carbonic anhydrase-coated hollow fiber membrane contactor for rapid CO2 absorption
Publisher: Elsevier BV
Date: 09-2016
The use of ultrasonics for nanoemulsion preparation
Publisher: Elsevier BV
Date: 04-2008
The Effect of Fermentation Temperature on the Microstructure, Physicochemical and Rheological Properties of Probiotic Buffalo Yoghurt
Publisher: Springer Science and Business Media LLC
Date: 20-02-2014
A catechin/cellulose composite membrane for organic solvent nanofiltration
Publisher: Elsevier BV
Date: 12-2018
Gas separation performance of copolymers of perfluoro(butenyl vinyl ether) and perfluoro(2,2-dimethyl-1,3-dioxole)
Publisher: Elsevier BV
Date: 09-2021
The modelling of ZnCl2 extraction and HCl co-extraction by TBP diluted in ShellSol 2046
Publisher: Elsevier BV
Date: 02-2013
Click poly(ethylene glycol) multilayers on RO membranes: Fouling reduction and membrane characterization
Publisher: Elsevier BV
Date: 08-2012
The Microstructure and Physicochemical Properties of Probiotic Buffalo Yoghurt During Fermentation and Storage: a Comparison with Bovine Yoghurt
Publisher: Springer Science and Business Media LLC
Date: 20-03-2013
A kinetic study of CO2 capture with potassium carbonate solutions promoted with various amino acids: Glycine, sarcosine and proline
Publisher: Elsevier BV
Date: 2014
The performance of carbon membranes in the presence of condensable and non-condensable impurities
Publisher: Elsevier BV
Date: 08-2011
A novel approach for enhancing metal ion separation using acoustic nebulisation
Publisher: Elsevier BV
Date: 05-2012
DOI: 10.1016/J.ULTSONCH.2011.10.014
Abstract: A novel technique for anionic surfactant assisted separation and preconcentration of metal cations was developed using ultrasound induced nebulization at MHz frequency. The ions of copper, zinc, cadmium, and calcium were used as model analytes. Analysis of the aerosol using flame atomic absorption spectrometry showed enrichment factors for the metal ions studied between 5 and 8, when dilute solutions containing sodium dodecylsulfate and the metal ions were nebulized. The mechanism of metal ion enrichment was explained based on surfactant adsorption and the droplet model for aerosol droplets. It was demonstrated that further increase in the enrichment factor could be achieved by increasing the ultrasound frequency, thus producing smaller droplets.
Operating temperature effects on the plasticization of polyimide gas separation membranes
Publisher: Elsevier BV
Date: 05-2007
Screening Amino Acid Salts as Rate Promoters in Potassium Carbonate Solvent for Carbon Dioxide Absorption
Publisher: American Chemical Society (ACS)
Date: 24-03-2017
Effect of ultrasound on the physical and functional properties of reconstituted whey protein powders
Publisher: Cambridge University Press (CUP)
Date: 17-03-2011
DOI: 10.1017/S0022029911000070
Abstract: Aqueous solutions of reconstituted whey protein- concentrate (WPC) & isolate (WPI) powders were sonicated at 20 kHz in a batch process for 1–60 min. Sonication at 20 kHz increased the clarity of WPC solutions largely due to the reduction in the size of the suspended insoluble aggregates. The gel strength of these solutions when heated at 80°C for 20 min also increased with sonication, while gelation time and gel syneresis were reduced. These improvements in gel strength were observed across a range of initial pH values, suggesting that the mechanism for gel promotion is different from the well known effects of pH. Examining the microstructure of the whey protein gels indicated a compact network of densely packed whey protein aggregates arising from ultrasound treatment. Comparable changes were not observed with whey protein isolate solutions, which may reflect the absence of larger aggregates in the initial solution or differences in composition.
Isolation of lactoferrin and immunoglobulins from dairy whey by an electrodialysis with filtration membrane process
Publisher: Elsevier BV
Date: 02-2020
Polyimide polydimethylsiloxane triblock copolymers for thin film composite gas separation membranes
Publisher: Wiley
Date: 10-2014
DOI: 10.1002/POLA.27401
Sonication of milk protein solutions prior to spray drying and the subsequent effects on powders during storage
Publisher: Elsevier BV
Date: 11-2014
The Effect of Milk Protein Concentration on the Microstructure and Textural Properties of Full Fat Cheddar Cheese During Ripening
Publisher: Springer Science and Business Media LLC
Date: 10-06-2014
Pervaporation performance of crosslinked PVA membranes in the vicinity of the glass transition temperature
Publisher: Elsevier BV
Date: 05-2018
The influence of propane and n-butane on the structure and separation performance of cellulose acetate membranes
Publisher: Elsevier BV
Date: 11-2021
Carbon dioxide absorption into promoted potassium carbonate solutions: A review
Publisher: Elsevier BV
Date: 10-2016
Water permeability and competitive permeation with CO 2 and CH 4 in perfluorinated polymeric membranes
Publisher: Elsevier BV
Date: 06-2015
The potential for use of cellulose triacetate membranes in post combustion capture
Publisher: Elsevier BV
Date: 12-2016
Carbon Dioxide Separation through Polymeric Membrane Systems for Flue Gas Applications
Publisher: Bentham Science Publishers Ltd.
Date: 2008
Hydrocarbon solubility, permeability, and competitive sorption effects in polymer of intrinsic microporosity (PIM-1) membranes
Publisher: Wiley
Date: 21-09-2015
DOI: 10.1002/POLB.23900
The transport of hydronium and hydroxide ions through reverse osmosis membranes
Publisher: Elsevier BV
Date: 06-2014
Ultrasonics in food processing – Food quality assurance and food safety
Publisher: Elsevier BV
Date: 08-2012
Polymeric alternatives to teflon for membrane stripping
Publisher: Elsevier BV
Date: 2011
Impact of Fly Ash on the Membrane Performance in Postcombustion Carbon Capture Applications
Publisher: American Chemical Society (ACS)
Date: 18-04-2016
Membrane pilot plant trials of CO2 separation from flue gas
Publisher: Wiley
Date: 20-04-2015
DOI: 10.1002/GHG.1498
The modelling of water and hydrochloric acid extraction by tri-n-butyl phosphate
Publisher: Elsevier BV
Date: 12-2012
The effect of ultrasound on casein micelle integrity
Publisher: American Dairy Science Association
Date: 12-2012
Abstract: S les of fresh skim milk, reconstituted micellar casein, and casein powder were sonicated at 20 kHz to investigate the effect of ultrasonication. For fresh skim milk, the average size of the remaining fat globules was reduced by approximately 10 nm after 60 min of sonication however, the size of the casein micelles was determined to be unchanged. A small increase in soluble whey protein and a corresponding decrease in viscosity also occurred within the first few minutes of sonication, which could be attributed to the breakup of casein-whey protein aggregates. No measurable changes in free casein content could be detected in ultracentrifuged skim milk s les sonicated for up to 60 min. A small, temporary decrease in pH resulted from sonication however, no measurable change in soluble calcium concentration was observed. Therefore, casein micelles in fresh skim milk were stable during the exposure to ultrasonication. Similar results were obtained for reconstituted micellar casein, whereas larger viscosity changes were observed as whey protein content was increased. Controlled application of ultrasound can be usefully applied to reverse process-induced protein aggregation without affecting the native state of casein micelles.
Synthesis and self-assembly of polyimide/poly(dimethylsiloxane) brush triblock copolymers
Publisher: Elsevier BV
Date: 2013
Development of a process for the recovery of zinc sulphate from hot-dip galvanizing spent pickling liquor via two solvent extraction steps
Publisher: Elsevier BV
Date: 02-2014
Pilot plant results for a precipitating potassium carbonate solvent absorption process promoted with glycine for enhanced CO2 capture
Publisher: Elsevier BV
Date: 07-2015
Comparison of shell side mass transfer correlations in randomly packed hollow fiber membrane modules
Publisher: Informa UK Limited
Date: 05-2010
A high volume and low damage route to hydroxyl functionalization of carbon nanotubes using hard X-ray lithography
Publisher: Elsevier BV
Date: 2013
Electrical Conductivity of Pipeline Deposits Under Pressure and Their Impacts on Sales-Gas Pipeline Cathodic Protection Systems
Publisher: Society of Petroleum Engineers (SPE)
Date: 17-05-2023
DOI: 10.2118/214702-PA
Abstract: Natural gas pipelines are critical for safe and efficient energy transport across large distances. To maintain operational safety, pipelines use cathodic protection systems that minimize the rate of external corrosion. This work characterizes the effects of black powder deposits, a widely experienced operational hazard across the natural gas industry, on the failure of pipeline cathodic protection systems due to electrical “shorting” of isolation devices. Black powder sludgy deposits from coal seam gas (CSG) pipelines were analyzed, revealing electrical conductivity values within the range of 580 to 5400 µS/cm when under pipeline pressure. These values were used to calculate the internal resistances of monolithic isolation joints (MIJs), a type of electrical isolation device, to show that electrical shorting (internal resistance of & 100 Ω) can occur for black powder sludgy deposit thicknesses in the range of millimeters. To reduce the frequency of such shorting events, it is recommended that upstream dehydration systems be designed to reduce carry-over of triethylene glycol (TEG), that internal nonconductive coatings be applied to isolation devices, and that these devices are installed in ways that facilitate regular cleaning.
Effect of amine degradation products on the membrane gas absorption process
Publisher: Elsevier BV
Date: 09-2009
The effects of minor components on the gas separation performance of membranes for carbon capture
Publisher: Elsevier BV
Date: 2011
Simulation and economic assessment of large-scale enzymatic N-acetyllactosamine manufacture
Publisher: Elsevier BV
Date: 02-2020
Membrane gas–solvent contactor trials of CO2 absorption from syngas
Publisher: Elsevier BV
Date: 07-2012
Advanced Materials for Membrane Fabrication and Modification
Publisher: CRC Press
Date: 30-08-2018
Gas sorption and diffusion in perfluoro(butenyl vinyl ether) based perfluoropolymeric membranes
Publisher: Elsevier BV
Date: 02-2022
Monoethanolamine Reclamation Using Electrodialysis
Publisher: American Chemical Society (ACS)
Date: 21-11-2014
DOI: 10.1021/IE503506B
The addition of calcium chloride in combination with a lower draining pH to change the microstructure and improve fat retention in Cheddar cheese
Publisher: Elsevier BV
Date: 07-2015
Tailoring physical aging in super glassy polymers with functionalized porous aromatic frameworks for CO2 capture
Publisher: American Chemical Society (ACS)
Date: 26-06-2015
Recovery of Sevoflurane Anesthetic Gas Using an Organosilica Membrane in Conjunction with a Scavenging System
Publisher: American Chemical Society (ACS)
Date: 09-02-2021
Fouling behaviour during the nanofiltration of dairy ultrafiltration permeate
Publisher: Elsevier BV
Date: 11-2006
Carbon dioxide capture by solvent absorption using amino acids: A review
Publisher: Elsevier BV
Date: 11-2018
A kinetic and process modeling study of CO2 capture with MEA-promoted potassium carbonate solutions
Publisher: Elsevier BV
Date: 11-2012
Frequency Effects during Acoustic Cavitation in Surfactant Solutions
Publisher: American Chemical Society (ACS)
Date: 06-11-2009
DOI: 10.1021/JP9083458
Abstract: The acoustic cavitation-induced events, multibubble sonoluminescence (MBSL) and initial growth of MBSL have been studied in surfactant solutions and correlated with bubble coalescence data at three different ultrasound frequencies. For an ionic surfactant, both the number of ultrasonic pulses required to reach a steady state MBSL intensity (N(crit)) and the magnitude of this intensity increases to a maximum as the surfactant concentration increases and then falls again. The total bubble volume generated for a fixed sonication time, which is indirectly related to bubble coalescence, similarly falls as surfactant concentration increases and then rises again. These effects are caused by a combination of electrostatic and coalescence factors at relatively low surfactant concentrations and the screening of the electrostatic factor as surfactant concentration increases further. The peak in coalescence inhibition occurs almost at the same surfactant concentrations as the acoustic frequency is increased however, the concentrations at which peaks in MBSL and N(crit) occur vary at different frequencies. These results have been discussed in terms of coalescence, electrostatic interactions, rectified diffusion growth, and the adsorption kinetics of the surfactants.
Heat stability and acid gelation properties of calcium-enriched reconstituted skim milk affected by ultrasonication
Publisher: Cambridge University Press (CUP)
Date: 03-03-2014
DOI: 10.1017/S0022029914000132
Abstract: The aggregation of proteins after heating of calcium-fortified milks has been an ongoing problem in the dairy industry. This undesirable effect restricts the manufacture of calcium rich dairy products. To overcome this problem, a completely new approach in controlling the heat stability of dairy protein solutions, developed in our lab, has been employed. In this approach, high intensity, low frequency ultrasound is applied for a very short duration after a pre-heating step at ⩾70 °C. The ultrasound breaks apart whey/whey and whey/casein aggregates through the process of acoustic cavitation. Protein aggregates do not reform on subsequent post-heating, thereby making the systems heat stable. In this paper, the acid gelation properties of ultrasonicated calcium-enriched skim milks have also been investigated. It is shown that ultrasonication alone does not change the gelation properties significantly whereas a sequence of preheating (72 °C/1 min) followed by ultrasonication leads to decreased gelation times, decreased gel syneresis and increased skim milk viscosity in comparison to heating alone. Overall, ultrasonication has the potential to provide calcium-fortified dairy products with increased heat stability. However, enhanced gelation properties can only be achieved when ultrasonication is completed in conjunction with heating.
Post-combustion Capture of CO2: Results from the Solvent Absorption Capture Plant at Hazelwood Power Station Using Potassium Carbonate Solvent
Publisher: American Chemical Society (ACS)
Date: 11-2110
DOI: 10.1021/EF201192N
Modeling of the sorption and transport properties of water vapor in polyimide membranes
Publisher: Elsevier BV
Date: 08-2012
Low solvent, low temperature method for extracting biodiesel lipids from concentrated microalgal biomass
Publisher: Elsevier BV
Date: 11-2013
Gas-liquid membrane contactors for carbon dioxide separation: A review
Publisher: Elsevier BV
Date: 05-2021
Shell-Side Mass-Transfer Performance in Hollow-Fiber Membrane Contactors
Publisher: Informa UK Limited
Date: 29-10-2010
Improved carbon dioxide stripping by membrane contactors using hydrophobic electrospun poly(vinylidene fluoride-co-hexafluoro propylene) (PVDF-HFP) membranes
Publisher: Elsevier BV
Date: 2022
CO2Absorption Behavior with a Novel Random Packing: Super Mini Ring
Publisher: Informa UK Limited
Date: 02-2007
The impact of toluene and xylene on the performance of cellulose triacetate membranes for natural gas sweetening
Publisher: Elsevier BV
Date: 06-2018
Lipid Profile Remodeling in Response to Nitrogen Deprivation in the Microalgae Chlorella sp. (Trebouxiophyceae) and Nannochloropsis sp. (Eustigmatophyceae)
Publisher: Public Library of Science (PLoS)
Date: 29-08-2014
Effective Interfacially Polymerized Polyester Solvent Resistant Nanofiltration Membrane from Bioderived Materials
Publisher: Wiley
Date: 17-05-2018
Absorption of carbon dioxide into aqueous potassium carbonate promoted by boric acid
Publisher: Elsevier BV
Date: 02-2009
The dynamics of the biological membrane surrounding the buffalo milk fat globule investigated as a function of temperature
Publisher: Elsevier BV
Date: 08-2016
DOI: 10.1016/J.FOODCHEM.2016.02.141
Abstract: The biological membrane surrounding fat globules in milk (the MFGM) is poorly understood, despite its importance in digestion and in determining the properties of fat globules. In this study, in situ structural investigations of buffalo MFGM were performed as a function of temperature (4-60°C), using confocal microscopy. We demonstrate that temperature and rate of temperature change affected the lipid domains formed in the MFGM with the lateral segregation (i) of high Tm lipids and cholesterol in a Lo phase for both T Tm and (ii) of high Tm lipids in a gel phase for T<Tm. Rapid cooling favours nucleation, while slow cooling favours growth, leading to the formation of small and large lipid domains, respectively. Changes in the interfacial properties of the MFGM, as a function of temperature, could modulate the functions of fat globules during processing and digestion.
Convective transport of boron through a brackish water reverse osmosis membrane
Publisher: Elsevier BV
Date: 10-2013
The effect of sonication and high pressure homogenisation on the properties of pure cream
Publisher: Elsevier BV
Date: 02-2016
The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry
Publisher: Elsevier BV
Date: 10-2004
Selected Applications of Ultrasonics in Food Processing
Publisher: Springer Science and Business Media LLC
Date: 07-04-2009
Phenol recovery with tributyl phosphate in a hollow fiber membrane contactor: Experimental and model analysis
Publisher: Elsevier BV
Date: 09-2009
The influence of dairy salts on nanofiltration membrane charge
Publisher: Elsevier BV
Date: 12-2011
The use of carbonic anhydrase to accelerate carbon dioxide capture processes
Publisher: Wiley
Date: 14-08-2015
DOI: 10.1002/JCTB.4502
Composite Membranes with Nanofibrous Cross-Hatched Supports for Reverse Osmosis Desalination
Publisher: American Chemical Society (ACS)
Date: 17-09-2020
Polytetrafluoroethylene (PTFE)-Sputtered Polypropylene Membranes for Carbon Dioxide Separation in Membrane Gas Absorption: Hollow Fiber Configuration
Publisher: American Chemical Society (ACS)
Date: 12-09-2011
DOI: 10.1021/IE200335A
A theoretical and experimental analysis of calcium speciation and precipitation in dairy ultrafiltration permeate
Publisher: Elsevier BV
Date: 10-2010
Water permeation and sorption properties of Nafion 115 at elevated temperatures
Publisher: Elsevier BV
Date: 06-2014
Analysis of separation and fouling behaviour during nanofiltration of dairy ultrafiltration permeates
Publisher: Elsevier BV
Date: 2009
Feasibility study of enzyme immobilization on polymeric membrane: A case study with enzymatically galacto-oligosaccharides production from lactose
Publisher: Elsevier BV
Date: 08-2011
Electrodialysis in Aqueous-Organic Mixtures
Publisher: Informa UK Limited
Date: 15-10-2014
Sorption of methane, nitrogen, carbon dioxide, and water in Matrimid 5218
Publisher: Wiley
Date: 28-04-2010
DOI: 10.1002/APP.32148
Fouling of NF membranes by dairy ultrafiltration permeates
Publisher: Elsevier BV
Date: 03-2009
CO2 capture from pre-combustion processes—Strategies for membrane gas separation
Publisher: Elsevier BV
Date: 09-2010
The Effect of Salt on the Structure of Individual Fat Globules and the Microstructure of Dry Salted Cheddar Cheese
Publisher: Springer Science and Business Media LLC
Date: 24-08-2019
A model for cross-flow ultrafiltration of dairy whey based on the rheology of the compressible cake
Publisher: Elsevier BV
Date: 09-2009
Thermal treatment of dense polyimide membranes
Publisher: Wiley
Date: 15-09-2008
DOI: 10.1002/POLB.21521
The effect of soft nanoparticles morphologies on thin film composite membrane performance
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA02859G
Abstract: Novel soft nanoparticles with tunable morphologies were incorporated into thin film composite membrane system for efficient CO 2 capture applications.
Borate-Catalyzed Carbon Dioxide Hydration via the Carbonic Anhydrase Mechanism
Publisher: American Chemical Society (ACS)
Date: 02-05-2011
DOI: 10.1021/ES200590M
Abstract: The hydration of CO(2) plays a critical role in carbon capture and geoengineering technologies currently under development to mitigate anthropogenic global warming and in environmental processes such as ocean acidification. Here we reveal that borate catalyzes the conversion of CO(2) to HCO(3)(-) via the same fundamental mechanism as the enzyme carbonic anhydrase, which is responsible for CO(2) hydration in the human body. In this mechanism the tetrahydroxyborate ion, B(OH)(4)(-), is the active form of boron that undergoes direct reaction with CO(2). In addition to being able to accelerate CO(2) hydration in alkaline solvents used for carbon capture, we hypothesize that this mechanism controls CO(2) uptake by certain saline bodies of water, such as Mono Lake (California), where previously inexplicable influx rates of inorganic carbon have created unique chemistry. The new understanding of CO(2) hydration provided here should lead to improved models for the carbon cycle in highly saline bodies of water and to advances in carbon capture and geoengineering technology.
The ultrasonic processing of dairy products - An overview
Publisher: Springer Science and Business Media LLC
Date: 10-11-2010
DOI: 10.1051/DST/2009044
The influence of feed pH on the performance of a reverse osmosis membrane during alginate fouling
Publisher: Informa UK Limited
Date: 12-2012
Influence of acoustic pressure and bubble sizes on the coalescence of two contacting bubbles in an acoustic field
Publisher: Elsevier BV
Date: 2015
DOI: 10.1016/J.ULTSONCH.2014.06.022
Abstract: In this study, the coalescence time between two contacting sub-resonance size bubbles was measured experimentally under an acoustic pressure ranging from 10kPa to 120kPa, driven at a frequency of 22.4kHz. The coalescence time obtained under sonication was much longer compared to that calculated by the film drainage theory for a free bubble surface without surfactants. It was found that under the influence of an acoustic field, the coalescence time could be probabilistic in nature, exhibiting upper and lower limits of coalescence times which are prolonged when both the maximum surface approach velocity and secondary Bjerknes force increases. The size of the two contacting bubbles is also important. For a given acoustic pressure, bubbles having a larger average size and size difference were observed to exhibit longer coalescence times. This could be caused by the phase difference between the volume oscillations of the two bubbles, which in turn affects the minimum film thickness reached between the bubbles and the film drainage time. These results will have important implications for developing film drainage theory to account for the effect of bubble translational and volumetric oscillations, bubble surface fluctuations and microstreaming.
Minimising oil droplet size using ultrasonic emulsification
Publisher: Elsevier BV
Date: 08-2009
DOI: 10.1016/J.ULTSONCH.2009.02.008
Abstract: The efficient production of nanoemulsions, with oil droplet sizes of less than 100nm would facilitate the inclusion of oil soluble bio-active agents into a range of water based foods. Small droplet sizes lead to transparent emulsions so that product appearance is not altered by the addition of an oil phase. In this paper, we demonstrate that it is possible to create remarkably small transparent O/W nanoemulsions with average diameters as low as 40nm from sunflower oil. This is achieved using ultrasound or high shear homogenization and a surfactant/co-surfactant/oil system that is well optimised. The minimum droplet size of 40nm, was only obtained when both droplet deformability (surfactant design) and the applied shear (equipment geometry) were optimal. The time required to achieve the minimum droplet size was also clearly affected by the equipment configuration. Results at atmospheric pressure fitted an expected exponential relationship with the total energy density. However, we found that this relationship changes when an overpressure of up to 400kPa is applied to the sonication vessel, leading to more efficient emulsion production. Oil stability is unaffected by the sonication process.
The effect of condensable minor components on the gas separation performance of polymeric membranes for carbon dioxide capture
Publisher: Elsevier BV
Date: 02-2009
Membrane Gas Separation – Physical Solvent Absorption Combined Plant Simulations for Pre-combustion Capture
Publisher: Elsevier BV
Date: 2013
Microstructure and physicochemical properties reveal differences between high moisture buffalo and bovine Mozzarella cheeses
Publisher: Elsevier BV
Date: 12-2017
DOI: 10.1016/J.FOODRES.2017.09.032
Abstract: Mozzarella cheese is a classical dairy product but most research to date has focused on low moisture products. In this study, the microstructure and physicochemical properties of both laboratory and commercially produced high moisture buffalo Mozzarella cheeses were investigated and compared to high moisture bovine products. Buffalo and bovine Mozzarella cheeses were found to significantly differ in their microstructure, chemical composition, organic acid and proteolytic profiles but had similar hardness and meltability. The buffalo cheeses exhibited a significantly higher ratio of fat to protein and a microstructure containing larger fat patches and a less dense protein network. Liquid chromatography mass spectrometry detected the presence of only β-casein variant A2 and a single β-lactoglobulin variant in buffalo products compared to the presence of both β-casein variants A1 and A2 and β-lactoglobulin variants A and B in bovine cheese. These differences arise from the different milk composition and processing conditions. The differences in microstructure and physicochemical properties observed here offer a new approach to identify the sources of milk used in commercial cheese products.
The Screening of Extractants for the Separation of Zn(II) from Australian Hot-Dip Galvanizing Effluent
Publisher: Informa UK Limited
Date: 08-2011
Permeation through CO2selective glassy polymeric membranes in the presence of hydrogen sulfide
Publisher: Wiley
Date: 31-03-2011
DOI: 10.1002/AIC.12610
Plasticization Suppression in Grafted Polyimide−Epoxy Network Membranes
Publisher: American Chemical Society (ACS)
Date: 31-10-2007
DOI: 10.1021/IE070689H
Pilot plant performance of rubbery polymeric membranes for carbon dioxide separation from syngas
Publisher: Elsevier BV
Date: 02-2012
Ultra-thin film composite mixed matrix membranes incorporating iron(iii )–dopamine nanoparticles for CO2separation
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5NR08840B
Abstract: Iron dopamine nanoparticles (FeDA NPs) are incorporated into a nanoscale thick polyethylene glycol (PEG) matrix for the first time, to form ultra-thin film composite mixed matrix membranes (UTFC-MMMs) via a recently developed continuous assembly of polymers (CAP) nanotechnology. The FeDA NPs are prepared by in situ nano-complexation between Fe(3+) and DA and have a particle size that can be varied from 3 to 74 nanometers by adjusting the molar ratio of DA to Fe(3+) ion. The cross-linked selective layer with sub 100 nanometer thickness is prepared by atom transfer radical polymerisation of a mixture of PEG macrocross-linkers and FeDA NPs on top of a highly permeable poly(dimethyl siloxane) (PDMS) prelayer, which is spin-coated onto a porous polyacrylonitrile (PAN) substrate. The incorporation of the FeDA NPs within the PEG-based selective layer is confirmed by XPS analysis. The UTFC-MMMs (thickness: ∼45 nm) formed present excellent gas separation performance with a CO2 permeance of ∼1200 GPU (1 GPU = 10(-6) cm(3) (STP) cm(-2) s(-1) cmHg(-1)) and an enhanced CO2/N2 selectivity of over 35, which is the best performance for UTFC membranes in the reported literature.
A proteomic characterization shows differences in the milk fat globule membrane of buffalo and bovine milk
Publisher: Elsevier BV
Date: 09-2017
Soft polymeric nanoparticle additives for next generation gas separation membranes
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA14170E
Outcomes from pilot plant trials of precipitating potassium carbonate solvent absorption for CO 2 capture from a brown coal fired power station in Australia
Publisher: Elsevier BV
Date: 2017
The effect of pH on the fat and protein within cream cheese and their influence on textural and rheological properties
Publisher: Elsevier BV
Date: 12-2020
The thickness dependence of Matrimid films in water vapor permeation
Publisher: Elsevier BV
Date: 10-2012
Spray Assembled, Cross-Linked Polyelectrolyte Multilayer Membranes for Salt Removal
Publisher: American Chemical Society (ACS)
Date: 18-07-2014
DOI: 10.1021/LA501855K
Abstract: The present study reports the synthesis of spray-coated cross-linked polyelectrolyte multilayer membranes. Membrane cross-linking was performed using alkyne-azide "click" chemistry, where alkyne and azide functional groups were used to modify the poly(acrylic acid) (PAA) and the poly(allylamine) hydrochloride (PAH) polyelectrolytes. The results demonstrate that deposition at lower ionic strength produced smoother and denser membrane structures. Pore size analysis using neutral poly(ethylene glycol) revealed a decrease in the membrane pore size as the degree of cross-linking was increased, resulting in the membrane rejecting alent CaCl2 at levels of up to 80%, and 50% rejection of monovalent NaCl. When poly(sodium-4-styrenesulfonate) (PSS) was combined with small amounts of cross-linkable PAA, significant flux increases were observed in the multilayer membranes with no observable reduction in ion rejection.
The impact of ethylene glycol and hydrogen sulphide on the performance of cellulose triacetate membranes in natural gas sweetening
Publisher: Elsevier BV
Date: 10-2017
A quantitative analysis of microalgal lipids for optimization of biodiesel and omega-3 production
Publisher: Wiley
Date: 09-02-2013
DOI: 10.1002/BIT.24844
High‐performance thin film composite membranes with well‐defined poly(dimethylsiloxane)‐b‐poly(ethylene glycol) copolymer additives for CO2 separation
Publisher: Wiley
Date: 03-04-2015
DOI: 10.1002/POLA.27628
Zinc Chloride and Hydrochloric Acid Coextraction from Galvanizing Pickling Waste in the Presence of Iron(II). Results with Hollow Fiber Membrane Contactors
Publisher: American Chemical Society (ACS)
Date: 04-03-2014
DOI: 10.1021/IE4036498
Recent advances refining galactooligosaccharide production from lactose
Publisher: Elsevier BV
Date: 07-2010
Development of membrane testing protocols for characterisation of RO and NF membranes
Publisher: Elsevier BV
Date: 2009
Improvement of MCDI operation and design through experiment and modelling: Regeneration with brine and optimum residence time
Publisher: Elsevier BV
Date: 09-2017
Growth of bubbles by rectified diffusion in aqueous surfactant solutions
Publisher: American Chemical Society (ACS)
Date: 04-11-2010
DOI: 10.1021/JP107731J
Membrane stripping: Desorption of carbon dioxide from alkali solvents
Publisher: Elsevier BV
Date: 08-2011
Influence of ultrasound on chemically induced gelation of micellar casein systems
Publisher: Cambridge University Press (CUP)
Date: 18-01-2013
DOI: 10.1017/S0022029912000696
Abstract: Gelation is a significant operation in dairy processing. Protein gelation can be affected by several factors such as temperature, pH, or enzyme addition. Recently, the use of ultrasonication has been shown to have a significant impact on the formation of whey protein gels. In this work, the effect of ultrasonication on the gelation of casein systems was investigated. Gels were formed by the addition of 7·6 m m Tetra Sodium Pyro Phosphate (TSPP) to 5 wt% micellar casein (MC) solutions. Sonication at 20 KHz and 31 W for up to 30 min changed the surface hydrophobicity of the proteins, whereas surface charge was unaltered. Sonication before the addition of TSPP formed a firm gel with a fine protein network and low syneresis. Conversely, sonication after TSPP addition led to an inconsistent weak-gel-like structure with high syneresis. Gel strength in both cases increased significantly after short sonication times, while the viscoelastic properties were less affected. Overall, the results showed that ultrasonication can have a significant effect on the final gel properties of casein systems.
Effects of Minor Components in Carbon Dioxide Capture Using Polymeric Gas Separation Membranes
Publisher: Informa UK Limited
Date: 2009
A comparison of commercial reverse osmosis membrane characteristics and performance under alginate fouling conditions
Publisher: Elsevier BV
Date: 03-2012
Ultrasonic processing of dairy systems in large scale reactors
Publisher: Elsevier BV
Date: 08-2010
DOI: 10.1016/J.ULTSONCH.2009.10.014
Abstract: High intensity low frequency ultrasound was used to process dairy ingredients to improve functional properties. Based on a number of lab-scale experiments, several experimental parameters were optimised for processing large volumes of whey and casein-based dairy systems in pilot scale ultrasonic reactors. A continuous sonication process at 20 kHz capable of delivering up to 4 kW of power with a flow-through reactor design was used to treat dairy ingredients at flow rates ranging from 200 to 6000 mL/min. Dairy ingredients treated by ultrasound included reconstituted whey protein concentrate (WPC), whey protein and milk protein retentates and calcium caseinate. The sonication of solutions with a contact time of less than 1 min and up to 2.4 min led to a significant reduction in the viscosity of materials containing 18% to 54% (w/w) solids. The viscosity of aqueous dairy ingredients treated with ultrasound was reduced by between 6% and 50% depending greatly on the composition, processing history, acoustic power and contact time. A notable improvement in the gel strength of sonicated and heat coagulated dairy systems was also observed. When sonication was combined with a pre-heat treatment of 80 degrees C for 1 min or 85 degrees C for 30s, the heat stability of the dairy ingredients containing whey proteins was significantly improved. The effect of sonication was attributed mainly to physical forces generated through acoustic cavitation as supported by particle size reduction in response to sonication. As a result, the gelling properties and heat stability aspects of sonicated dairy ingredients were maintained after spray drying and reconstitution. Overall, the sonication procedure for processing dairy systems may be used to improve process efficiency, improve throughput and develop value added ingredients with the potential to deliver economical benefits to the dairy industry.
Influence of surface-active solutes on the coalescence, clustering, and fragmentation of acoustic bubbles confined in a microspace
Publisher: American Chemical Society (ACS)
Date: 30-11-2007
DOI: 10.1021/JP075431J
Effect of alcohols on the initial growth of multibubble sonoluminescence
Publisher: American Chemical Society (ACS)
Date: 08-2006
DOI: 10.1021/JP063320Z
Abstract: The effect of alcohols on the initial growth of the multibubble sonoluminescence (MBSL) intensity in aqueous solutions has been investigated. With increasing concentrations of the alcohols, the number of pulses required to grow the MBSL intensity to a steady state (N(crit)) increases (relative to that of water) initially to a maximum for all the alcohols used in this study, followed by a decrease for methanol and ethanol. The cause of the initial increase in N(crit) is attributed to the inhibition of bubble coalescence in the system. This inhibition in bubble coalescence results in a population of bubbles with a smaller size range and thus a larger number of pulses is required to grow the bubbles to their sonoluminescing size range. It is suggested that the decrease in the N(crit) at higher alcohol concentrations may be caused by an increase in the bubble growth by rectified diffusion.
The effect of hydrogen sulfide, carbon monoxide and water on the performance of a PDMS membrane in carbon dioxide/nitrogen separation
Publisher: Elsevier BV
Date: 15-03-2010
Chlorine Resistant Glutaraldehyde Crosslinked Polyelectrolyte Multilayer Membranes for Desalination
Publisher: Wiley
Date: 16-03-2015
Abstract: Crosslinked polyelectrolyte multilayer membranes are synthesized with salt rejection values approaching those of commercial desalination membranes, but with increased chlorine resistance. The membranes are fabricated directly onto porous commercial substrates. Subsequent crosslinking of the polycation layers with glutaraldehyde leads to NaCl rejections of up to 97%, while the incorporation of a highly sulfonated polysulfone polyanion leads to high chlorine resistance.
Impact of Heavy Hydrocarbons on Natural Gas Sweetening Using Perfluorinated Polymeric Membranes
Publisher: American Chemical Society (ACS)
Date: 06-07-2016
Sonochemical synthesis of liquid-encapsulated lysozyme microspheres
Publisher: Elsevier BV
Date: 02-2010
DOI: 10.1016/J.ULTSONCH.2009.09.012
Abstract: Liquid-encapsulated lysozyme microspheres were successfully synthesized using a sonochemical method. The encapsulation of four different liquids, namely, sunflower oil, tetradecane, dodecane and perfluorohexane on the formation, stability and morphology of the lysozyme microspheres was studied. Among the four different liquids used for encapsulation, perfluorohexane-filled microspheres were found to be most stable in the dried state with a narrow size distribution. In order to explore the possibility of encapsulating biofunctional molecules (e.g., drugs) within these microspheres, liquids containing a fluorescent dye (Nile red) were encapsulated and the ultrasound-induced release of these dye-loaded liquids was studied. The fluorescence data for the liquid-filled lysozyme microspheres demonstrated the potential use of the sonochemical technique for synthesizing these "vehicles" for the encapsulation and the controlled delivery of dyes, flavours, fragrances or drugs.
Comparison of several packings for CO2 chemical absorption in a packed column
Publisher: Elsevier BV
Date: 09-2011
Poly(tetrafluoroethylene) Sputtered Polypropylene Membranes for Carbon Dioxide Separation in Membrane Gas Absorption
Publisher: American Chemical Society (ACS)
Date: 07-03-2011
DOI: 10.1021/IE102019U
Soft nanoparticles assembled from linear poly(ethylene glycol) and linear brush polydimethylsiloxane diblock copolymers
Publisher: Wiley
Date: 18-02-2014
DOI: 10.1002/POLA.27111
Abstract: A series of novel hiphilic diblock copolymers composed of hydrophilic linear poly(ethylene glycol) (PEG) and linear brush hydrophobic polydimethylsiloxane (PDMS) were synthesized. Three different molecular weights of monomethyl ether PEG were initially functionalized with 2‐bromo iso butyryl bromide to afford macroinitiators suitable for atom‐transfer radical polymerization. The macroinitiators were characterized by gel permeation chromatography, 1 H and 13 C nuclear magnetic resonance spectroscopic analysis and matrix‐assisted laser desorption ionization time‐of‐flight mass spectroscopy. The three different molecular weight macroinitiators were then chain extended with monomethacryloxypropyl‐terminated PDMS and photoactive 2‐(methylacyloyloxy)ethyl anthracene‐9‐carboxylate in different molar ratios to afford a series of photoresponsive hiphilic diblock copolymers with high conversions. Self‐assembly of these linear–linear brush diblock copolymers in N , N ‐dimethylformamide afforded nanoparticles with hydrodynamic diameters ( d H ) ranging from 41 to 268 nm, as determined by dynamic light scattering analysis. Crosslinking and stabilization of the nanoparticles was achieved via [4+4] photodimerization of the anthracene moieties upon exposure to UV radiation at 365 nm with the reverse reaction studied at a wavelength of 254 nm. Transmission electron microscopy revealed that the self‐assembled nanoparticles and their crosslinked derivatives had spherical morphologies. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52 , 1251–1262
Development of novel fluorinated additives for high performance CO2 separation thin-film composite membranes
Publisher: Elsevier BV
Date: 02-2016
Interfacial Adsorption of 5‐Octyloxymethyl‐8‐quinolinol over a Range of pH
Publisher: Informa UK Limited
Date: 03-01-2003
Microfiltration of skim milk for casein concentrate manufacture
Publisher: Elsevier BV
Date: 11-2006
The dissolution of a stationary spherical bubble beneath a flat plate
Publisher: Elsevier BV
Date: 12-2006
Effect of Hydrocarbons on the Separation of Carbon Dioxide From Methane through a Polyimide Gas Separation Membrane
Publisher: American Chemical Society (ACS)
Date: 30-04-2009
DOI: 10.1021/IE801537G
Carbon dioxide absorption into unpromoted and borate-catalyzed potassium carbonate solutions
Publisher: Elsevier BV
Date: 02-2012
The effect of temperature on the permeation properties of Sulphonated Poly (Ether Ether) Ketone in wet flue gas streams
Publisher: Elsevier BV
Date: 12-2016
A comparison of multicomponent electrosorption in capacitive deionization and membrane capacitive deionization
Publisher: Elsevier BV
Date: 03-2018
DOI: 10.1016/J.WATRES.2017.12.015
Abstract: In this study, the desalination performance of Capacitive Deionization (CDI) and Membrane Capacitive Deionization (MCDI) was studied for a wide range of salt compositions. The comprehensive data collection for monovalent and alent ions used in this work enabled us to understand better the competitive electrosorption of these ions both with and without ion-exchange membranes (IEMs). As expected, MCDI showed an enhanced salt adsorption and charge efficiency in comparison with CDI. However, the different electrosorption behavior of the former reveals that ion transport through the IEMs is a significant rate-controlling step in the desalination process. A sharper desorption peak is observed for alent ions in MCDI, which can be attributed to a portion of these ions being temporarily stored within the IEMs, thus they are the first to leave the cell upon discharge. In addition to salt concentration, we monitored the pH of the effluent stream in CDI and MCDI and discuss the potential causes of these fluctuations. The dramatic pH change over one adsorption and desorption cycle in CDI (pH range of 3.5-10.5) can be problematic in a feed water containing components prone to scaling. The pH change, however, was much more limited in the case of MCDI for all salts.
Microfiltration of skim milk using polymeric membranes for casein concentrate manufacture
Publisher: Elsevier BV
Date: 05-2008
Modeling of carbon dioxide and water sorption in glassy polymers through PC-SAFT and NET PC-SAFT
Publisher: Elsevier BV
Date: 11-2016
Influence of mixing and ultrasound frequency on antisolvent crystallisation of sodium chloride
Publisher: Elsevier BV
Date: 2014
DOI: 10.1016/J.ULTSONCH.2013.07.005
Abstract: Ultrasound is known to promote nucleation of crystals and produce a narrower size distribution in a controlled and reproducible manner for the crystallisation process. Although there are various theories that suggest cavitation bubbles are responsible for sonocrystallisation, most studies use power ultrasonic horns that generate both intense shear and cavitation and this can mask the role that cavitation bubbles play. High frequency ultrasound from a plate transducer can be used to examine the effect of cavitation bubbles without the intense shear effect. This study reports the crystal size and morphology with various mixing speeds and ultrasound frequencies. The results show high frequency ultrasound produced sodium chloride crystals of similar size distribution as an ultrasonic horn. In addition, ultrasound generated sodium chloride crystals having a more symmetrical cubic structure compared to crystals produced by a high shear mixer.
Viscosities and Carbon Dioxide Solubilities of Guanidine Carbonate and Malic Acid-Based Eutectic Solvents
Publisher: American Chemical Society (ACS)
Date: 22-11-2016
Structural Investigation of a Water/n‐Heptane Interface: A Molecular Dynamics Study
Publisher: Informa UK Limited
Date: 03-2007
Body Mass and Hypertension in Women
Publisher: American College of Physicians
Date: 07-1998
Water vapor sorption and free volume in the aromatic polyamide layer of reverse osmosis membranes
Publisher: Elsevier BV
Date: 2013
Spray assisted layer-by-layer assembled one-bilayer polyelectrolyte reverse osmosis membranes
Publisher: Elsevier BV
Date: 10-2018
Galactosyl oligosaccharide purification by ethanol precipitation
Publisher: Elsevier BV
Date: 10-2011
Assessment of Membrane Performance for Post-Combustion CO2 Capture
Publisher: American Chemical Society (ACS)
Date: 28-12-2021
Erratum to “Fouling of NF membranes by dairy ultrafiltration permeates” [J. Membr. Sci. 330 (2009) 117–126]
Publisher: Elsevier BV
Date: 06-2009
Ultrasonics in food processing
Publisher: Elsevier BV
Date: 09-2012
DOI: 10.1016/J.ULTSONCH.2012.01.010
Abstract: In recent years, the physical and chemical effects of ultrasound in liquid and solid media have been extensively used in food processing applications. Harnessing the physical forces generated by ultrasound, in the absence and presence of cavitation, for specific food processing applications such as emulsification, filtration, tenderisation and functionality modification have been highlighted. While some applications, such as filtration and emulsification are "mature" industrial processes, other applications, such as functionality modification, are still in their early stages of development. However, various investigations discussed suggest that ultrasonic processing of food and dairy ingredients is a potential and viable technology that will be used by many food industries in the near future.
Mechanisms for the ultrasonic enhancement of dairy whey ultrafiltration
Publisher: Elsevier BV
Date: 08-2005
Recent Progress on the Performance of Different Rate Promoters in Potassium Carbonate Solvents for CO2 Capture
Publisher: Elsevier BV
Date: 07-2017
Transport of terpenes through composite PDMS/PAN solvent resistant nanofiltration membranes
Publisher: Elsevier BV
Date: 12-2018
Removal of lactate from acid whey using nanofiltration
Publisher: Elsevier BV
Date: 05-2016
Effect of surfactants on inertial cavitation activity in a pulsed acoustic field
Publisher: American Chemical Society (ACS)
Date: 11-08-2005
DOI: 10.1021/JP0533271
Abstract: It has previously been reported that the addition of low concentrations of ionic surfactants enhances the steady-state sonoluminescence (SL) intensity relative to water (Ashokkumar et al. J. Phys. Chem. B 1997, 101, 10845). In the current study, both sonoluminescence and passive cavitation detection (PCD) were used to examine the acoustic cavitation field generated at different acoustic pulse lengths in the presence of an anionic surfactant, sodium dodecyl sulfate (SDS). A decrease in the SL intensity was observed in the presence of low concentrations of SDS and short acoustic pulse lengths. Under these conditions, the inhibition of bubble coalescence by SDS leads to a population of smaller bubbles, which dissolve during the pulse "off time". As the concentration of surfactant was increased at this pulse length, an increase in the acoustic cavitation activity was observed. This increase is partly attributed to enhanced growth rate of the bubbles by rectified diffusion. Conversely, at long pulse lengths acoustic cavitation activity was enhanced at low SDS concentrations as a larger number of the smaller bubbles could survive the pulse "off time". The effect of reduced acoustic shielding and an increase in the "active" bubble population due to electrostatic repulsion between bubbles are also significant in this case. Finally, as the surfactant concentration was increased further, the effect of electrostatic induced impedance shielding or reclustering dominates, resulting in a decrease in the SL intensity.
Effects of industrial gas impurities on the performance of mixed matrix membranes
Publisher: Elsevier BV
Date: 03-2018
Fabrication of a superhydrophobic polypropylene membrane by deposition of a porous crystalline polypropylene coating
Publisher: Elsevier BV
Date: 06-2008
Pre-combustion capture of CO2—Results from solvent absorption pilot plant trials using 30wt% potassium carbonate and boric acid promoted potassium carbonate solvent
Publisher: Elsevier BV
Date: 09-2012
Enhanced gas permeation through graphene nanocomposites
Publisher: American Chemical Society (ACS)
Date: 09-06-2015
Improving β-Galactosidase-Catalyzed Transglycosylation Yields by Cross-Linked Layer-by-Layer Enzyme Immobilization
Publisher: American Chemical Society (ACS)
Date: 24-09-2020
A combined model for the prediction of the permeation flux during the cross-flow ultrafiltration of a whey suspension
Publisher: Elsevier BV
Date: 09-2010
Hot topic: Sonication increases the heat stability of whey proteins
Publisher: American Dairy Science Association
Date: 11-2009
Abstract: The thickening or gelling of protein-based dairy streams and ingredients upon exposure to heat has been an ongoing problem in dairy processing for many decades. This phenomenon can restrict the range of dairy product options and reduce manufacturing efficiencies by limiting the type and extent of heat treatment that can be used. In this report, we outline a novel approach to overcoming this problem. The use of preheating treatments to induce whey protein aggregate formation in whey products is well known in the field. However, we show that the application of ultrasound for a very short duration after such a heating step breaks down these aggregates and prevents their reformation on subsequent heating, thereby reducing the viscosity increase that is usually associated with this process. This novel technique has the potential to provide significant economic benefit to the dairy manufacturing industry.
Direct contact membrane distillation for the concentration of saline dairy effluent
Publisher: Elsevier BV
Date: 09-2015
DOI: 10.1016/J.WATRES.2015.05.042
Abstract: The ability of direct contact membrane distillation to concentrate the waste effluent from salty whey, a by-product from the cheese making industry has been investigated. The effect of trace protein in the feed, cross-flow velocity and feed acidity were the factors examined. Flat Sheet PTFE membranes of nominal pore sizes 0.05, 0.22 and 0.45 μm were utilised. A decline in feed flux in the presence of trace protein in the feed was observed, but liquid penetration through the membrane could still be prevented by utilization of a membrane of smaller pore size, to achieve a final total solids concentration of ±30% w/w with water recovery from 37 to 83 %. The pressure-drop across the channel length was also predicted accounting for the feed spacer. To increase the channel length up to 1 m will require operation using the smallest pore size of 0.05 μm, unless very low cross-flow velocities are used. The fouling of the membrane is primarily governed by precipitation of a calcium phosphate salt. However, operation at low pH does not improve the flux or the final salt concentration significantly.
Water vapor permeation through cellulose acetate membranes and its impact upon membrane separation performance for natural gas purification
Publisher: Elsevier BV
Date: 08-2015
The resilience of carbonic anhydrase enzyme for membrane-based carbon capture applications
Publisher: Elsevier BV
Date: 07-2017
Synthesis of N-Acetyllactosamine and N-Acetyllactosamine-Based Bioactives
Publisher: American Chemical Society (ACS)
Date: 21-06-2021
Membrane Gas-Solvent Contactor Pilot Plant Trials of CO2Absorption from Flue Gas
Publisher: Informa UK Limited
Date: 13-10-2014
The Effects of Minor Components on the Gas Separation Performance of Polymeric Membranes for Carbon Capture
Publisher: Wiley
Date: 30-06-2010
Experimental and theoretical analysis of secondary Bjerknes forces between two bubbles in a standing wave
Publisher: Elsevier BV
Date: 04-2015
DOI: 10.1016/J.ULTRAS.2014.11.016
Abstract: Bubbles in an acoustic field are affected by forces such as primary and secondary Bjerknes forces, which have been shown to be influenced by acoustic pressure, frequency, bubble size and separation distance between bubbles. However, such studies are predominantly theoretical, and are mostly focused on the sign reversal of the secondary Bjerknes force. This study provides experimental data on the effect of a range of bubble sizes (8-30 μm), distances (⩽0.2 mm), acoustic pressures (20-40 kPa) and frequencies (40-100 kHz) on the relative acceleration of two approaching bubbles. Under these conditions, only variations in the magnitude of the attractive force were observed. Using coupled equations of radial and translational motions, the acceleration and secondary Bjerknes force were calculated and compared to the experimental data. The variations in the magnitude of the secondary Bjerknes forces were explained by simulating bubble radius and coupled volume oscillation as a function of time.
The Effect of SO2 on CO2 Absorption in an Aqueous Potassium Carbonate Solvent
Publisher: Elsevier BV
Date: 02-2009
Methanol Vapor Retards Aging of PIM-1 Thin Film Composite Membranes in Storage
Publisher: American Chemical Society (ACS)
Date: 06-01-2023
The role of surfactant headgroup, chain length, and cavitation microstreaming on the growth of bubbles by rectified diffusion
Publisher: American Chemical Society (ACS)
Date: 18-11-2011
DOI: 10.1021/JP208862P
The impact of water, BTEX compounds and ethylene glycol on the performance of perfluoro(butenyl vinyl ether) based membranes for CO2 capture from natural gas
Publisher: Elsevier BV
Date: 07-2022
The characterisation of Mozzarella cheese microstructure using high resolution synchrotron transmission and ATR-FTIR microspectroscopy
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.FOODCHEM.2019.04.016
Abstract: Synchrotron Fourier transform infrared (S-FTIR) microspectroscopy allows the label-free examination of material microstructure but has not been widely applied to dairy products. Here, S-FTIR microspectroscopy was applied to observe the microstructure of Mozzarella cheese and assess the protein and lipid distribution within in idual cheese blocks. High lipid and high protein areas were identified in transmission and attenuated total reflectance (ATR) analysis modes and the secondary structures of cheese proteins determined. Hierarchical cluster analysis and principal component analysis identified variation in random coil, water content, lipid carbonyl and methylene stretching across the s led area. Similar spectral features were obtained in both analysis modes spatial resolution was higher with ATR and small differences were noted, potentially as a result of differences in s le preparation. S-FTIR is a useful microscopy tool that can detect structural alterations that may affect product properties and may assist reverse engineering of a range of dairy products.
Effects of carbon dioxide-induced plasticization on the gas transport properties of glassy polyimide membranes
Publisher: Elsevier BV
Date: 07-2007
Effect of surfactants on the rate of growth of an air bubble by rectified diffusion
Publisher: American Chemical Society (ACS)
Date: 13-07-2005
DOI: 10.1021/JP051758D
Abstract: The rectified diffusion growth of a single air bubble levitated in an acoustic field (frequency = 22.35 kHz) in water and in aqueous solutions containing surfactants (sodium dodecyl sulfate and sodium dodecylbenzene sulfonate) was investigated. As reported by Crum (J. Acoust. Soc. Am. 1980, 68, 203), the presence of surfactants at the bubble/liquid interface enhanced the growth rate of the bubble by rectified diffusion. It is suggested in this paper that in addition to the effect of surfactants on the surface tension and interfacial resistance to mass transfer, the effect of surface rheological properties may also contribute to the cause of the enhancement observed in the bubble growth rate.
The effects of acidic and thermal pretreatment on the mechanical rupture of two industrially relevant microalgae: Chlorella sp. and Navicula sp.
Publisher: Elsevier BV
Date: 2015
The solubility of sulfur dioxide and carbon dioxide in an aqueous solution of potassium carbonate
Publisher: Elsevier BV
Date: 11-2011
Homogenisation improves the microstructure, syneresis and rheological properties of buffalo yoghurt
Publisher: Elsevier BV
Date: 07-2015
Lithium enrichment from a simulated salt lake brine using an integrated nanofiltration-membrane distillation process
Publisher: Elsevier BV
Date: 10-2019
Facilitated transport behavior of humidified gases through thin-film composite polyamide membranes for carbon dioxide capture
Publisher: Elsevier BV
Date: 02-2013
Nitric oxide and carbon monoxide permeation through glassy polymeric membranes for carbon dioxide separation
Publisher: Elsevier BV
Date: 09-2011
Modelling competitive sorption and plasticization of glassy polymeric membranes used in biogas upgrading
Publisher: Elsevier BV
Date: 2021
Experimental and theoretical studies on the movements of two bubbles in an acoustic standing wave field
Publisher: American Chemical Society (ACS)
Date: 07-10-2013
DOI: 10.1021/JP404886H
Abstract: When subjected to an ultrasonic standing-wave field, cavitation bubbles smaller than the resonance size migrate to the pressure antinodes. As bubbles approach the antinode, they also move toward each other and either form a cluster or coalesce. In this study, the translational trajectory of two bubbles moving toward each other in an ultrasonic standing wave at 22.4 kHz was observed using an imaging system with a high-speed video camera. This allowed the speed of the approaching bubbles to be measured for much closer distances than those reported in the prior literature. The trajectory of two approaching bubbles was modeled using coupled equations of radial and translational motions, showing similar trends with the experimental results. We also indirectly measured the secondary Bjerknes force by monitoring the acceleration when bubbles are close to each other under different acoustic pressure litudes. Bubbles begin to accelerate toward each other as the distance between them gets shorter, and this acceleration increases with increasing acoustic pressure. The current study provides experimental data that validates the theory on the movement of bubbles and forces acting between them in an acoustic field that will be useful in understanding bubble coalescence in an acoustic field.
The effect of crosslinking temperature on the permeability of PDMS membranes: Evidence of extraordinary CO2 and CH4 gas permeation
Publisher: Elsevier BV
Date: 02-2014
Effect of the Substrate Concentration and Water Activity on the Yield and Rate of the Transfer Reaction of β-Galactosidase from Bacillus circulans
Publisher: American Chemical Society (ACS)
Date: 04-03-2011
DOI: 10.1021/JF104397W
Abstract: Prebiotic galactosyl oligosaccharides (GOS) are produced from lactose by the enzyme β-galactosidase. It is widely reported that the highest GOS levels are achieved when the initial lactose concentration is as high as possible however, little evidence has been presented to explain this phenomenon. Using a system composed of the commercial β-galactosidase derived from Bacillus circulans known as Biolacta FN5, lactose and sucrose, the relative contribution of water activity, and substrate availability were assessed. Oligosaccharide levels did not appear to be affected by changes in water activity between 1.0 and 0.77 at a constant lactose concentration. The maximum oligosaccharide concentration increased at higher initial concentrations of lactose and sucrose, while initial reaction rates for transfer increased but remained constant for hydrolysis. This suggests that the high oligosaccharide levels achieved at the raised initial saccharide concentration are due to increases in reactions that form oligosaccharides rather than decreases in concurrent reactions, which degrade oligosaccharides. There were different effects from changing the initial concentration of lactose compared to sucrose, suggesting that the ability of lactose to act as a donor saccharide may be more important for increasing maximum oligosaccharide concentrations than the combined ability of both saccharides to act as galactosyl acceptors.
Competitive permeation of gas and water vapour in high free volume polymeric membranes
Publisher: Wiley
Date: 04-03-2015
DOI: 10.1002/POLB.23689
The effect of boric acid on the vapour liquid equilibrium of aqueous potassium carbonate
Publisher: Elsevier BV
Date: 10-2011
Simulations of Membrane Gas Separation: Chemical Solvent Absorption Hybrid Plants for Pre- and Post-Combustion Carbon Capture
Publisher: Informa UK Limited
Date: 02-09-2013
Reversible diamine cross-linking of polyimide membranes
Publisher: Elsevier BV
Date: 03-2007
Effect of pyrolysis temperature and operating temperature on the performance of nanoporous carbon membranes
Publisher: Elsevier BV
Date: 09-2008
Prevalence and socio-demographic correlates of psychological distress among students at an Australian university
Publisher: Informa UK Limited
Date: 02-10-2016
Study on the Interaction between NOxand K2CO3during CO2Absorption†
Publisher: American Chemical Society (ACS)
Date: 15-10-2009
DOI: 10.1021/EF9001082
Quantification of Cavitation Activity by Sonoluminescence To Study the Sonocrystallization Process under Different Ultrasound Parameters
Publisher: American Chemical Society (ACS)
Date: 25-07-2018
A comparison between ceramic and polymeric membrane systems for casein concentrate manufacture
Publisher: Wiley
Date: 13-04-2010
Robust and Superhydrophobic PTFE Membranes with Crosshatched Nanofibers for Membrane Distillation and Carbon Dioxide Stripping
Publisher: Wiley
Date: 17-07-2022
Abstract: Polytetrafluoroethylene (PTFE) nanofiber membranes with novel crosshatched structures are developed and applied to both water desalination by direct contact membrane distillation (MD) and CO 2 separation by membrane gas absorption. Crosshatched structures are produced from a PTFE‐poly(ethylene oxide)(PEO) emulsion by depositing alternating layers of aligned fibers oriented in perpendicular directions. This is followed by sintering to remove the PEO and to stabilize the structure. The crosshatched structure allows for rapid gas and vapor transport due to the low tortuosity and high porosity, leading to fast and effective separation. PTFE nanofiber membranes with these novel structures are ideal for membrane CO 2 stripping as this polymer is inherently strong and very hydrophobic. The mass transfer in both MD and CO 2 stripping is greatly improved in the crosshatched nanofibers (CNF) as well as in composite membranes with microparticles (CNF‐MP), as compared with conventional random nanofibers. The membranes exhibit a MD flux up to 98.5 ± 1.2 kg m −2 h −1 , significantly greater than a standard PTFE membrane with asymmetric morphology, when tested with a 3.5 wt% sodium chloride feed solution at 80 °C in direct contact with water at 20 °C.
Use of Vanadium(V) Oxide as a Catalyst for CO2 Hydration in Potassium Carbonate Systems
Publisher: American Chemical Society (ACS)
Date: 18-02-2014
DOI: 10.1021/IE403836E
Formation of a thick aromatic polyamide membrane by interfacial polymerisation
Publisher: Elsevier BV
Date: 02-2013
Determination of the size distribution of sonoluminescence bubbles in a pulsed acoustic field
Publisher: American Chemical Society (ACS)
Date: 10-11-2005
DOI: 10.1021/JA0566432
Abstract: A simple method is described for determining the size of sonoluminescence bubbles generated by acoustic cavitation. The change in the intensity of sonoluminescence, from 4 ms pulses of 515 kHz ultrasound, as a function of the "off" time between acoustic pulses, is the basis of the method. The bubble size determined in water was in the range of 2.8-3.7 mum.
Sonoluminescence and sonochemiluminescence from a microreactor
Publisher: Elsevier BV
Date: 11-2012
DOI: 10.1016/J.ULTSONCH.2012.04.008
Abstract: Micromachined pits on a substrate can be used to nucleate and stabilize microbubbles in a liquid exposed to an ultrasonic field. Under suitable conditions, the collapse of these bubbles can result in light emission (sonoluminescence, SL). Hydroxyl radicals (OH()) generated during bubble collapse can react with luminol to produce light (sonochemiluminescence, SCL). SL and SCL intensities were recorded for several regimes related to the pressure litude (low and high acoustic power levels) at a given ultrasonic frequency (200kHz) for pure water, and aqueous luminol and propanol solutions. Various arrangements of pits were studied, with the number of pits ranging from no pits (comparable to a classic ultrasound reactor), to three-pits. Where there was more than one pit present, in the high pressure regime the ejected microbubbles combined into linear (two-pits) or triangular (three-pits) bubble clouds (streamers). In all situations where a pit was present on the substrate, the SL was intensified and increased with the number of pits at both low and high power levels. For imaging SL emitting regions, Argon (Ar) saturated water was used under similar conditions. SL emission from aqueous propanol solution (50mM) provided evidence of transient bubble cavitation. Solutions containing 0.1mM luminol were also used to demonstrate the radical production by attaining the SCL emission regions.
Modeling syngas permeation through a poly dimethyl siloxane membrane by Flory–Rehner theory
Publisher: Elsevier BV
Date: 09-2013
Criteria for the selection of reagents for CO2 absorption
Publisher: Elsevier
Date: 2005
Dissolution and reconstitution of casein micelle containing dairy powders by high shear using ultrasonic and physical methods
Publisher: Elsevier BV
Date: 09-2014
DOI: 10.1016/J.ULTSONCH.2014.04.006
Abstract: The effect of shear on the solubilization of a range of dairy powders was investigated. The rate of solubilization of low solubility milk protein concentrate and micellar casein powders was examined during ultrasonication, high pressure homogenization and high-shear rotor-stator mixing and compared to low-shear overhead stirring. The high shear techniques were able to greatly accelerate the solubilization of these powders by physically breaking apart the powder agglomerates and accelerating the release of in idual casein micelles into solution. This was achieved without affecting the structure of the solubilized proteins. The effect of high shear on the re-establishment of the mineral balance between the casein micelles and the serum was examined by monitoring the pH of the reconstituted skim milk powder after prior exposure to ultrasonication. Only minor differences in the re-equilibration of the pH were observed after sonication for up to 3 min, suggesting that the localized high shear forces exerted by sonication did not significantly affect the mass transfer of minerals from within the casein micelles.
Experiments and Thermodynamic Modeling of the Solubility of Carbon Dioxide in Three Different Deep Eutectic Solvents (DESs)
Publisher: American Chemical Society (ACS)
Date: 27-10-2015
A Comparison of the Effectiveness of Sonication, High Shear Mixing and Homogenisation on Improving the Heat Stability of Whey Protein Solutions
Publisher: Springer Science and Business Media LLC
Date: 26-02-2013
Blends of Fluorinated Additives with Highly Selective Thin-Film Composite Membranes to Increase CO2 Permeability for CO2/N2 Gas Separation Applications
Publisher: American Chemical Society (ACS)
Date: 22-07-2201
Effect of surfactants on single bubble sonoluminescence behavior and bubble surface stability
Publisher: American Physical Society (APS)
Date: 08-04-2014
Novel pre-combustion capture technologies in action–Results of the CO2CRC/HRL Mulgrave capture project
Publisher: Elsevier BV
Date: 2011
An experimental evaluation and molecular simulation of high temperature gas adsorption on nanoporous carbon
Publisher: Elsevier BV
Date: 2011
Highly permeable membrane materials for CO2 capture
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA13066E
A novel cross-linked nano-coating for carbon dioxide capture
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5EE02433A
Abstract: Defect-free and cross-linked ultra-thin (sub 100 nm) film composite membranes have been prepared. The membrane materials formed exhibited significantly high CO 2 permeances of over 1200 GPU as well as excellent CO 2 /N 2 selectivity of over 40.
Plasticization of ultra-thin polysulfone membranes by carbon dioxide
Publisher: Elsevier BV
Date: 2010
Asymmetric composite PDMS membrane contactors for desorption of CO2 from monoethanolamine
Publisher: Elsevier BV
Date: 12-2016
Effects of operational conditions on the removal of phenols from wastewater by a hollow-fiber membrane contactor
Publisher: Elsevier BV
Date: 07-2012
A study of the vapour–liquid equilibrium of CO2 in mixed solutions of potassium carbonate and potassium glycinate
Publisher: Elsevier BV
Date: 05-2015
The optimisation of ultrasonic cleaning procedures for dairy fouled ultrafiltration membranes
Publisher: Elsevier BV
Date: 2005
DOI: 10.1016/J.ULTSONCH.2004.05.007
Abstract: Ultrafiltration (UF) of whey is a major membrane based process in the dairy industry. However, commercialization of this application has been limited by membrane fouling, which has a detrimental influence on the permeation rate. There are a number of different chemical and physical cleaning methods currently used for cleaning a fouled membrane. It has been suggested that the cleaning frequency and the severity of such cleaning procedures control the membrane lifetime. The development of an optimal cleaning strategy should therefore have a direct implication on the process economics. Recently, the use of ultrasound has attracted considerable interest as an alternative approach to the conventional methods. In the present study, we have studied the ultrasonic cleaning of polysulfone ultrafiltration membranes fouled with dairy whey solutions. The effects of a number of cleaning process parameters have been examined in the presence of ultrasound and results compared with the conventional operation. Experiments were conducted using a small single sheet membrane unit that was immersed totally within an ultrasonic bath. Results show that ultrasonic cleaning improves the cleaning efficiency under all experimental conditions. The ultrasonic effect is more significant in the absence of surfactant, but is less influenced by temperature and transmembrane pressure. Our results suggest that the ultrasonic energy acts primarily by increasing the turbulence within the cleaning solution.
A carbonic anhydrase inspired temperature responsive polymer based catalyst for accelerating carbon capture
Publisher: Elsevier BV
Date: 2018
Effects of ultrasound on the thermal and structural characteristics of proteins in reconstituted whey protein concentrate
Publisher: Elsevier BV
Date: 09-2011
DOI: 10.1016/J.ULTSONCH.2010.12.016
Abstract: The sonication-induced changes in the structural and thermal properties of proteins in reconstituted whey protein concentrate (WPC) solutions were examined. Differential scanning calorimetry, UV-vis, fluorescence and circular dichroism spectroscopic techniques were used to determine the thermal properties of proteins, measure thiol groups and monitor changes to protein hydrophobicity and secondary structure, respectively. The enthalpy of denaturation decreased when WPC solutions were sonicated for up to 5 min. Prolonged sonication increased the enthalpy of denaturation due to protein aggregation. Sonication did not alter the thiol content but resulted in minor changes to the secondary structure and hydrophobicity of the protein. Overall, the sonication process had little effect on the structure of proteins in WPC solutions which is critical to preserving functional properties during the ultrasonic processing of whey protein based dairy products.
Learnings from CO2CRC Capture Pilot Plant Testing – Assessing Technology Development
Publisher: Elsevier BV
Date: 07-2017
Carbonic anhydrase promoted absorption of CO2 into potassium carbonate solutions
Publisher: Wiley
Date: 19-08-2014
DOI: 10.1002/GHG.1455
Reaction kinetics and mechanism between histidine and carbon dioxide
Publisher: Elsevier BV
Date: 2017
Rejection of dairy salts by a nanofiltration membrane
Publisher: Elsevier BV
Date: 05-2011
Enzymatic carbon dioxide capture using a thermally stable carbonic anhydrase as a promoter in potassium carbonate solvents
Publisher: Elsevier BV
Date: 2017
Estimation of Normal Boiling Temperatures, Critical Properties, and Acentric Factors of Deep Eutectic Solvents
Publisher: American Chemical Society (ACS)
Date: 02-06-2015
Recent developments in solvent absorption technologies at the CO2CRC in Australia
Publisher: Elsevier BV
Date: 02-2009
Solubility of Calcium Phosphate in Concentrated Dairy Effluent Brines
Publisher: American Chemical Society (ACS)
Date: 11-05-2017
Abstract: The solubility of calcium phosphate in concentrated dairy brine streams is important in understanding mineral scaling on equipment, such as membrane modules, evaporators, and heat exchangers, and in brine pond operation. In this study, the solubility of calcium phosphate has been assessed in the presence of up to 300 g/L sodium chloride as well as lactose, organic acids, and anions at 10, 30, and 50 °C. As a neutral molecule, lactose has a marginal but still detectable effect upon calcium solubility. However, additions of sodium chloride up to 100 g/L result in a much greater increase in calcium solubility. Beyond this point, the concentrations of ions in the solution decrease significantly. These changes in calcium solubility can readily be explained through changes in the activity coefficients. There is little difference in calcium phosphate speciation between 10 and 30 °C. However, at 50 °C, the ratio of calcium to phosphate in the solution is lower than at the other temperatures and varies less with ionic strength. While the addition of sodium lactate has less effect upon calcium solubility than sodium citrate, it still has a greater effect than sodium chloride at an equivalent ionic strength. Conversely, when these organic anions are present in the solution in the acid form, the effect of pH dominates and results in much higher solubility and a calcium hosphate ratio close to one, indicative of dicalcium phosphate dihydrate as the dominant solid phase.
Organic solvent nanofiltration of binary vegetable oil/terpene mixtures: Experiments and modelling
Publisher: Elsevier BV
Date: 03-2019
Bubbles in an acoustic field: An overview
Publisher: Elsevier BV
Date: 04-2007
DOI: 10.1016/J.ULTSONCH.2006.09.016
Abstract: Acoustic cavitation is the fundamental process responsible for the initiation of most of the sonochemical reactions in liquids. Acoustic cavitation originates from the interaction between sound waves and bubbles. In an acoustic field, bubbles can undergo growth by rectified diffusion, bubble-bubble coalescence, bubble dissolution or bubble collapse leading to the generation of primary radicals and other secondary chemical reactions. Surface active solutes have been used in association with a number of experimental techniques in order to isolate and understand these activities. A strobe technique has been used for monitoring the growth of a single bubble by rectified diffusion. Multibubble sonoluminescence has been used for monitoring the growth of the bubbles as well as coalescence between bubbles. The extent of bubble coalescence has also been monitored using a newly developed capillary technique. An overview of the various experimental results has been presented in order to highlight the complexities involved in acoustic cavitation processes, which on the other hand arise from a simple, mechanical interaction between sound waves and bubbles.
Non-ideal modelling of polymeric hollow-fibre membrane systems: Pre-combustion CO2 capture case study
Publisher: Elsevier BV
Date: 02-2020
Comparison of thin film composite and microporous membrane contactors for CO 2 absorption into monoethanolamine
Publisher: Elsevier BV
Date: 11-2015
Thin-film composite membrane contactors for desorption of CO 2 from Monoethanolamine at elevated temperatures
Publisher: Elsevier BV
Date: 12-2015
Direct ink writing of dehydrofluorinated Poly(Vinylidene Difluoride) for microfiltration membrane fabrication
Publisher: Elsevier BV
Date: 08-2021
Innovations in separations technology for the recycling and re-use of liquid waste streams
Publisher: Elsevier BV
Date: 15-10-2001
Thermal dependence of carbon dioxide transport through a dense polymeric membrane
Publisher: Elsevier
Date: 2005
Use of Power Ultrasound to Improve Extraction and Modify Phase Transitions in Food Processing
Publisher: Informa UK Limited
Date: 2013
The effect of calcium removal from skim milk by ion exchange on the properties of the ultrafiltration retentate
Publisher: Elsevier BV
Date: 11-2023
Enhancing gas permeability in mixed matrix membranes through tuning the nanoparticle properties
Publisher: Elsevier BV
Date: 05-2015
Membrane gas separation applications in natural gas processing
Publisher: Elsevier BV
Date: 06-2012
The effect of feed pH on the performance of a reverse osmosis membrane
Publisher: Elsevier BV
Date: 10-2010
Surface Engineering of Polypropylene Membranes with Carbonic Anhydrase-Loaded Mesoporous Silica Nanoparticles for Improved Carbon Dioxide Hydration
Publisher: American Chemical Society (ACS)
Date: 28-05-2015
DOI: 10.1021/ACS.LANGMUIR.5B01020
Abstract: Carbonic anhydrase (CA) is a native enzyme that facilitates the hydration of carbon dioxide into bicarbonate ions. This study reports the fabrication of thin films of active CA enzyme onto a porous membrane substrate using layer-by-layer (LbL) assembly. Deposition of multilayer films consisting of polyelectrolytes and CA was monitored by quartz crystal microgravimetry, while the enzymatic activity was assayed according to the rates of p-nitrophenylacetate (p-NPA) hydrolysis and CO2 hydration. The fabrication of the films onto a nonporous glass substrate showed CO2 hydration rates of 0.52 ± 0.09 μmol cm(-2) min(-1) per layer of bovine CA and 2.6 ± 0.7 μmol cm(-2) min(-1) per layer of a thermostable microbial CA. The fabrication of a multilayer film containing the microbial CA on a porous polypropylene membrane increased the hydration rate to 5.3 ± 0.8 μmol cm(-2) min(-1) per layer of microbial CA. The addition of mesoporous silica nanoparticles as a film layer prior to enzyme adsorption was found to increase the activity on the polypropylene membranes even further to a rate of 19 ± 4 μmol cm(-2) min(-1) per layer of microbial CA. The LbL treatment of these membranes increased the mass transfer resistance of the membrane but decreased the likelihood of membrane pore wetting. These results have potential application in the absorption of carbon dioxide from combustion flue gases into aqueous solvents using gas-liquid membrane contactors.
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