Optimising Fouling Control in Membrane Bioreactors. Membrane bioreactors (MBR) are growing in importance for wastewater treatment because they offer an alternative for producing higher effluent quality wastewater within a more compact space compared to conventional processes. However, due to the pumping and bubbling used to keep the membranes clear of foulants resulting from the biological processes in MBR's, controlling fouling incurs significant energy usage and costs. The proposal aims to red ....Optimising Fouling Control in Membrane Bioreactors. Membrane bioreactors (MBR) are growing in importance for wastewater treatment because they offer an alternative for producing higher effluent quality wastewater within a more compact space compared to conventional processes. However, due to the pumping and bubbling used to keep the membranes clear of foulants resulting from the biological processes in MBR's, controlling fouling incurs significant energy usage and costs. The proposal aims to reduce the costs of fouling control by understanding the optimal conditions to remove these depositions and improve the design of MBR modules, operating conditions and shear delivery in the membrane system.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882388
Funder
Australian Research Council
Funding Amount
$130,000.00
Summary
Advanced characterisation of organics and biopolymers in water and wastewater treatment. Although membrane technology is increasingly used for water production, wastewater treatment and reclamation, fouling by complex bio-organics is a major limitation. The liquid chromatography-organic carbon detection and the Flow FFF equipments give detailed analyses of the complex organics, thereby helping to understand the fouling and organic removal mechanisms allowing process optimisation. The availabilit ....Advanced characterisation of organics and biopolymers in water and wastewater treatment. Although membrane technology is increasingly used for water production, wastewater treatment and reclamation, fouling by complex bio-organics is a major limitation. The liquid chromatography-organic carbon detection and the Flow FFF equipments give detailed analyses of the complex organics, thereby helping to understand the fouling and organic removal mechanisms allowing process optimisation. The availability of these equipments will ramatically improve the quality of a number of research projects currently funded and being developed in Australia. This equipment would provide necessary infrastructure to keep Australian researchers world leaders in this research field (one of Australian top research priorities) and attract national and international collaborations.Read moreRead less
Macromolecular Fouling in Membrane Bioreactors. As the demands for domestic and industrial water increasing in Australia and overseas, membrane bioreactors (MBR) offer an alternative for producing higher effluent quality wastewater compared to conventional processes. However, aeration costs used to remove fouling deposits (which reduce the operating performance) need to be further minimised. The proposal aims to study fundamental mechanisms involve in the deposition of foulant components by usin ....Macromolecular Fouling in Membrane Bioreactors. As the demands for domestic and industrial water increasing in Australia and overseas, membrane bioreactors (MBR) offer an alternative for producing higher effluent quality wastewater compared to conventional processes. However, aeration costs used to remove fouling deposits (which reduce the operating performance) need to be further minimised. The proposal aims to study fundamental mechanisms involve in the deposition of foulant components by using model systems of polysaccharides, proteins and microbial cells and comparing these with real MBR systems. The effect of bubbling varied gas compositions (air/H2S ratios) a novel approach in this study will be investigated to prevent or remove foulants in MBR systems. Read moreRead less
Frictional and viscous effects during transport in nanopores. Gas mixtures exposed to materials containing molecular sized pores (nanopores) are adsorbed, forming states of matter not existing in the bulk. Differential forces acting on the components of mixtures promote industrially and environmentally important separations. However, transport of confined fluids has been poorly understood. Recently we have made progress using computer simulation, and have proposed a highly successful theory. ....Frictional and viscous effects during transport in nanopores. Gas mixtures exposed to materials containing molecular sized pores (nanopores) are adsorbed, forming states of matter not existing in the bulk. Differential forces acting on the components of mixtures promote industrially and environmentally important separations. However, transport of confined fluids has been poorly understood. Recently we have made progress using computer simulation, and have proposed a highly successful theory. These investigations have revealed the crucial role of scattering from the surface atoms of the confining solid. Theoretical investigation of single spherical species has been initiated, and extension to other species and to mixtures is now envisaged.Read moreRead less
Preparations, Properties, and Applications of New Hydrogels. This project aims to develop a new polymeric matrix system for improved biological separations such as fibrinogen, DNA and RNA. These new hydrogels and membranes will not only be capable of separating biomacromolecules, not possible within the existing systems, but will also develop a new size exclusion type separation system for electrophoresis. The success of the project will have a significant impact in the biotechnology industry. P ....Preparations, Properties, and Applications of New Hydrogels. This project aims to develop a new polymeric matrix system for improved biological separations such as fibrinogen, DNA and RNA. These new hydrogels and membranes will not only be capable of separating biomacromolecules, not possible within the existing systems, but will also develop a new size exclusion type separation system for electrophoresis. The success of the project will have a significant impact in the biotechnology industry. Particularly, it will provide efficient methodologies to fractionate a number of important blood products and strengthen Australian's leading role in this field.Read moreRead less
Development of High Performance Nanocomposite Filtration Membranes: Fabrication and Fouling Mechanisms. This project will develop high performance membranes for the filtration of water and wastewater using novel nanotechnology processes. This will reduce the costs and environmental impact of water treatment and risk from low-level chemical contaminants such as micropollutants. The project will also provide an enhanced technology base for producing low cost, hybrid inorganic-organic materials fo ....Development of High Performance Nanocomposite Filtration Membranes: Fabrication and Fouling Mechanisms. This project will develop high performance membranes for the filtration of water and wastewater using novel nanotechnology processes. This will reduce the costs and environmental impact of water treatment and risk from low-level chemical contaminants such as micropollutants. The project will also provide an enhanced technology base for producing low cost, hybrid inorganic-organic materials for widespread environmental, agricultural and food applications.Read moreRead less
Periodic nano-ratchets: a new paradigm for biomolecule separation. This project proposes the theoretical and experimental study of a new separation principle. The platform technologies developed from this research will see wide ranging applications. They will reveal new insights into fundamental phenomena of membranes and separation processes underpinning development of new generation of separation technologies. New membranes and microchip separation devices which can be applied to genomic, prot ....Periodic nano-ratchets: a new paradigm for biomolecule separation. This project proposes the theoretical and experimental study of a new separation principle. The platform technologies developed from this research will see wide ranging applications. They will reveal new insights into fundamental phenomena of membranes and separation processes underpinning development of new generation of separation technologies. New membranes and microchip separation devices which can be applied to genomic, proteomic, forensic and a range medical, biotechnological and analytical applications will be readily achievable. This is an international and interdisciplinary research project and its outcomes will enhance Australia's ability in frontier technologies, advanced materials.Read moreRead less
Novel Synthesis and Bio-applications of Functional Macroporous Ordered Siliceous Foams. This project will lead to advances in materials science and nanotechnology, providing high efficiency separation and purification for viruses or plasmid deoxyribonucleic acid (DNA), which are important in modern gene engineering for the treatment of genetic and acquired diseases. Application benefits also include developing a new protocol in the detection of trace amount proteins, which will afford a signific ....Novel Synthesis and Bio-applications of Functional Macroporous Ordered Siliceous Foams. This project will lead to advances in materials science and nanotechnology, providing high efficiency separation and purification for viruses or plasmid deoxyribonucleic acid (DNA), which are important in modern gene engineering for the treatment of genetic and acquired diseases. Application benefits also include developing a new protocol in the detection of trace amount proteins, which will afford a significant improvement in diverse fields such as health care. Through this project, novel macroporous materials will be fabricated using an economically and environmentally sustainable approach. These new materials will have unique structures and properties compared to conventional macroporous materials, advancing Australia's intellectual position in this discipline.Read moreRead less
Multicomponent Transport in Nanopores. Good understanding of transport mechanisms in nanopores is crucial to the successful application of numerous recently developed novel templated microporous and mesoporous materials. This project seeks to extend a new theory developed by the applicants for single component transport in cylindrical mesopores, to cylindrical micropores as well as to multicomponent adsorbates, in conjunction with experiments using microporous and mesoporous materials such as M ....Multicomponent Transport in Nanopores. Good understanding of transport mechanisms in nanopores is crucial to the successful application of numerous recently developed novel templated microporous and mesoporous materials. This project seeks to extend a new theory developed by the applicants for single component transport in cylindrical mesopores, to cylindrical micropores as well as to multicomponent adsorbates, in conjunction with experiments using microporous and mesoporous materials such as MCM-41, VPI-5 and AlPO4-5. The outcome will be a powerful new theory for a priori prediction of transport coefficients for multicomponent fluids in nanopores based on molecular level information alone, thereby overcoming the empiricism in existing models.Read moreRead less
Developing high-flux ceramic membranes via in situ synthesis of metal oxide nanofibres for separations of biological substances. This project can deliver advanced technology for fabricating ceramic membranes and biological separation, which has considerable commercial prospects in the chemical, pharmaceutical, dairy, food and water industries. The new ceramic membrane and nanofibres are highly-valued end products of metal oxides, which are manufactured commercially on large scale in Australia. T ....Developing high-flux ceramic membranes via in situ synthesis of metal oxide nanofibres for separations of biological substances. This project can deliver advanced technology for fabricating ceramic membranes and biological separation, which has considerable commercial prospects in the chemical, pharmaceutical, dairy, food and water industries. The new ceramic membrane and nanofibres are highly-valued end products of metal oxides, which are manufactured commercially on large scale in Australia. The project could bring direct benefits to the existing industries, by fostering their growth into more value-added processes, and exporting highly-valued products abroad. Additionally, efficient ceramic membranes could offer solutions to the large-scale purification of biological substances and to the problems for providing clean drinking water.Read moreRead less