Iron - a solution for uranium resource recovery and pollution response. This project aims to determine key processes controlling uranium transport and fate in natural and engineered environments. This will result in improved efficiency in extracting uranium from tailings and subsurface deposits, reduced risk of contamination of water supplies, and improved management of radioactive waste repositories.
Optimising seed sourcing for effective ecological restoration. This project aims to address the sourcing of native seed for ecological restoration under global change. The great demand for native seed to deliver ecological restoration provides a clear need and responsibility to use this seed as efficiently as possible. This project expects to develop detailed new knowledge that links plant and environmental genomics, plant physiology, seed and soil biology in embedded experiments at post-mining ....Optimising seed sourcing for effective ecological restoration. This project aims to address the sourcing of native seed for ecological restoration under global change. The great demand for native seed to deliver ecological restoration provides a clear need and responsibility to use this seed as efficiently as possible. This project expects to develop detailed new knowledge that links plant and environmental genomics, plant physiology, seed and soil biology in embedded experiments at post-mining rehabilitation sites. Expected outcomes include clear industry guidelines that refine seed sourcing strategies for ecological restoration for current and future climates. This should provide significant benefits for improved ecological restoration outcomes when using native seed today and into the future.Read moreRead less
Antimony geochemistry and Earth's dynamic near-surface iron cycle. This project aims to advance our fundamental understanding on the geochemistry of antimony – a critical mineral resource and environmental pollutant of growing concern. This will be achieved by pioneering an innovative combination of advanced synchrotron-based tools and sophisticated isotopic approaches to unravel important interactions between antimony geochemistry and the iron cycle in soils, sediments and aquatic systems. The ....Antimony geochemistry and Earth's dynamic near-surface iron cycle. This project aims to advance our fundamental understanding on the geochemistry of antimony – a critical mineral resource and environmental pollutant of growing concern. This will be achieved by pioneering an innovative combination of advanced synchrotron-based tools and sophisticated isotopic approaches to unravel important interactions between antimony geochemistry and the iron cycle in soils, sediments and aquatic systems. The expected outcomes will provide novel insights into refined strategies to manipulate coupling between antimony mobility and iron cycling for improved rehabilitation of degraded landscapes, safe disposal of hazardous wastes and sustainable exploitation of Australia’s valuable antimony reserves.Read moreRead less
Developing a predictive toxicity model for metallic anions in plants. This project aims to develop competitive anionic toxicity models for antimony, arsenic, molybdenum and selenium supported by detailed speciation information. Available ecotoxicological models for inorganic toxicants have exclusively focused on cations such as zinc, and ignored anionic toxicants such as arsenic and antimony. For available models on cations to be applicable to contaminated environments, it is essential for equiv ....Developing a predictive toxicity model for metallic anions in plants. This project aims to develop competitive anionic toxicity models for antimony, arsenic, molybdenum and selenium supported by detailed speciation information. Available ecotoxicological models for inorganic toxicants have exclusively focused on cations such as zinc, and ignored anionic toxicants such as arsenic and antimony. For available models on cations to be applicable to contaminated environments, it is essential for equivalent anionic toxicity models be developed. This project will develop the first such model, which will provide new insights on ecotoxicological modelling for inorganic anionic toxicants. The project will transform ecotoxicological modelling approaches for metals and metalloids in terrestrial systems and directly improve our ability to assess risks associated with environmental contamination.Read moreRead less
Arsenic and copper cycling in the soil-plant continuum in water-limited mining environments. This project will characterise cycling of arsenic and copper in the landscape after gold mining and will establish environmental risk-assessment framework. The results of this project will improve rehabilitation of mining-affected areas.
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
Innovative seed technologies for restoration in a biodiversity hotspot. This project aims to develop and implement innovative and practical methods to improve native plant establishment within a global biodiversity hotspot. As restoration efforts worldwide are hindered by altered substrates and invasive species, the greatest challenge is to reconstruct plant communities that are resistant to invasion and resilient within disturbed landscapes. The development of advanced technologies to enhance r ....Innovative seed technologies for restoration in a biodiversity hotspot. This project aims to develop and implement innovative and practical methods to improve native plant establishment within a global biodiversity hotspot. As restoration efforts worldwide are hindered by altered substrates and invasive species, the greatest challenge is to reconstruct plant communities that are resistant to invasion and resilient within disturbed landscapes. The development of advanced technologies to enhance restoration success will benefit ecological communities impacted by urban expansion, agriculture and resource development, and their associated practitioners, government agencies, private landowners and primary Australian industry.Read moreRead less
Exploiting natural processes to effectively remediate acidified coastal environments. Working with local government, industry and communities, this project aims to identify how natural processes can best be manipulated to limit acid sulfate soil discharge in many Australian estuaries. The expected outcomes are systematic remediation of these areas and improvement in estuarine water quality.
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
Remediation of groundwater using permeable reactive barriers. Permeable reactive barriers are passive subsurface installations that remove contamination from groundwater as it flows through a reactive substrate. This project will develop new permeable reactive barriers that will benefit the nation by building skills and knowledge in an area of growth in Australian industry, namely the rehabilitation of industrial lands and the protection and remediation of Australia's critical groundwater source ....Remediation of groundwater using permeable reactive barriers. Permeable reactive barriers are passive subsurface installations that remove contamination from groundwater as it flows through a reactive substrate. This project will develop new permeable reactive barriers that will benefit the nation by building skills and knowledge in an area of growth in Australian industry, namely the rehabilitation of industrial lands and the protection and remediation of Australia's critical groundwater sources. The project is aimed at remediating an industrially contaminated site in the Hunter Valley, New South Wales, thereby contributing to the environmental improvement of that region. The technology developed will have wide application to other sites, both nationally and internationally.Read moreRead less