Biogeochemical remediation approaches for PFAS contaminated environments. This project aims to identify and harvest microorganisms capable of directly or indirectly affecting PFOS or PFOA degradation in the environment. Fluorinated compounds such as PFOS and PFOA in firefighting foams are contaminants of concern now routinely detected in contaminated groundwater and soil globally. Understanding the role of microorganisms, and the biogeochemical processes they perform in relation to fluorinated c ....Biogeochemical remediation approaches for PFAS contaminated environments. This project aims to identify and harvest microorganisms capable of directly or indirectly affecting PFOS or PFOA degradation in the environment. Fluorinated compounds such as PFOS and PFOA in firefighting foams are contaminants of concern now routinely detected in contaminated groundwater and soil globally. Understanding the role of microorganisms, and the biogeochemical processes they perform in relation to fluorinated compounds, will inform handling of contaminated sites and lead to development of cost effective and sustainable remediation technologies. Read moreRead less
Electron transport catalysis in organohalide pollutant respiration. This project aims to understand the link between substrate specificity and gene sequence of dehalogenating enzymes in organohalide respiring bacteria (ORB) and the mechanism by which electrons are transferred to dehalogenating enzymes through protein-protein interactions. Organohalides were present in Earth's early history and now pollute the environment globally. Organohalide respiring bacteria (ORB) can degrade these pollutant ....Electron transport catalysis in organohalide pollutant respiration. This project aims to understand the link between substrate specificity and gene sequence of dehalogenating enzymes in organohalide respiring bacteria (ORB) and the mechanism by which electrons are transferred to dehalogenating enzymes through protein-protein interactions. Organohalides were present in Earth's early history and now pollute the environment globally. Organohalide respiring bacteria (ORB) can degrade these pollutants by using them as terminal electron acceptors in their respiratory metabolism. This represents one of the most ancient respiratory systems on Earth about which little is known. This project will add to our fundamental knowledge of microbial evolution and metabolic systems, and pave the way for next generation organohalide remediation technologies.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100755
Funder
Australian Research Council
Funding Amount
$462,948.00
Summary
Developing phytosystems for the biofiltration of air pollutants . This project aims to develop, evaluate and apply a range of biotechnology driven solutions for the use of phytosystem biofilters designed for air purification. The findings of the project will demonstrate the fundamental mechanisms behind botanical air pollutant biofiltration, apply systematic technological development against a range of air pollutants, and provide strategies to deploy the technology. With a transdisciplinary appr ....Developing phytosystems for the biofiltration of air pollutants . This project aims to develop, evaluate and apply a range of biotechnology driven solutions for the use of phytosystem biofilters designed for air purification. The findings of the project will demonstrate the fundamental mechanisms behind botanical air pollutant biofiltration, apply systematic technological development against a range of air pollutants, and provide strategies to deploy the technology. With a transdisciplinary approach utilising techniques new to this discipline, the project will substantially advance the fundamental science underlying this novel and highly valuable area of air-bioremediation technology, and will create a much stronger economic driver for this Australia-led innovation.Read moreRead less
Accelerated tailings remediation with plant and microbial biotechnologies. The Australian alumina industry produces 32 million tonnes of bauxite residue (alumina refining tailings) each year, most of which is stored in perpetuity in landfill-type tailings storage facilities. The high pH, high salinity, lack of plant nutrients, and poor physical properties of bauxite residue are major barriers to safe storage and successful closure of tailings storage facilities. Existing remediation approaches a ....Accelerated tailings remediation with plant and microbial biotechnologies. The Australian alumina industry produces 32 million tonnes of bauxite residue (alumina refining tailings) each year, most of which is stored in perpetuity in landfill-type tailings storage facilities. The high pH, high salinity, lack of plant nutrients, and poor physical properties of bauxite residue are major barriers to safe storage and successful closure of tailings storage facilities. Existing remediation approaches are expensive, slow, and often ineffective. We will deliver new microbial- and plant-driven biotechnologies for rapid, cost-effective remediation of bauxite residue. This will enable safe, sustainable closure of storage facilities, and safeguard the strong contribution of this $15 billion industry to Australia's economy. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100822
Funder
Australian Research Council
Funding Amount
$383,887.00
Summary
Haloalkaliphilic sulphur oxidising bacteria in dealkalising bauxite residue. This project aims to establish breakthrough technology for neutralising bauxite refinery wastes by creating new knowledge about the taxonomic composition and molecular metabolism of sulphur oxidising bacteria capable of oxidising low-cost element sulphur in extremely haloalkaline niches. The findings will be translated into field feasible ecological engineering technology in partnership with industry partners. This DECR ....Haloalkaliphilic sulphur oxidising bacteria in dealkalising bauxite residue. This project aims to establish breakthrough technology for neutralising bauxite refinery wastes by creating new knowledge about the taxonomic composition and molecular metabolism of sulphur oxidising bacteria capable of oxidising low-cost element sulphur in extremely haloalkaline niches. The findings will be translated into field feasible ecological engineering technology in partnership with industry partners. This DECRA project will also contribute to the net zero waste strategy in Australia and could significantly contribute to global problems of mining waste, carbon emission, and soil depletion if implemented. The commercialisation of the technology package will increase economic advantages and employment in Australia.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220101471
Funder
Australian Research Council
Funding Amount
$441,100.00
Summary
Controlling uranium species to its long-term stability in bioremediation. This project aims to reveal the mechanisms of uranium transformation and immobilisation in both aerobic and anaerobic conditions of bioremediation with the emphasis on elucidating stable uranium immobilised under different pathways and conditions. This project expects to generate new knowledge regarding the relationship between uranium speciation and stability with the matrix mineral, microbiota, and environmental conditio ....Controlling uranium species to its long-term stability in bioremediation. This project aims to reveal the mechanisms of uranium transformation and immobilisation in both aerobic and anaerobic conditions of bioremediation with the emphasis on elucidating stable uranium immobilised under different pathways and conditions. This project expects to generate new knowledge regarding the relationship between uranium speciation and stability with the matrix mineral, microbiota, and environmental conditions. Expected outcomes from this project include new strategies for preferential immobilisation of uranium to stable species that are resistant to air and acid. The anticipated benefits of this project include mitigating uranium contamination and promoting the sustainable development of the uranium industry in Australia.Read moreRead less