Salty gas: the ecological risk of saline effluents from coal seam gas and other hydrocarbon resources. The objective of this project is to predict the effect of saline water produced from coal and coal seam gas extraction activities on freshwater systems. The findings will assist decisions on whether to permit discharge of such waste water, and if permitted under what conditions (e.g. water quality criteria) so as to prevent environment damage.
BauxsolTM based grouts and shotcretes for the control of acid rock drainage. Acid rock drainage (ARD) occurs where sulphides (mostly pyrite, but also sulphides of other metals) are exposed to oxygen and water; the estimated global liability from ARD is over US$300 billion. There is currently no cost-effective way to prevent the release of acid and heavy metals from exposed sulphide minerals especially at abandoned mine sites. This study investigates the use of BASECONTM transformed bauxite refin ....BauxsolTM based grouts and shotcretes for the control of acid rock drainage. Acid rock drainage (ARD) occurs where sulphides (mostly pyrite, but also sulphides of other metals) are exposed to oxygen and water; the estimated global liability from ARD is over US$300 billion. There is currently no cost-effective way to prevent the release of acid and heavy metals from exposed sulphide minerals especially at abandoned mine sites. This study investigates the use of BASECONTM transformed bauxite refinery residues (BauxsolTM) to grout waste rock dumps and tailings dams and to develop concretes that can be sprayed on open cut walls and floor to prevent and treat the ARD as it is formed.Read moreRead less
Pelletisation of seawater-neutralised bauxite refinery residues (Bauxsol?) for construction of permeable reactive barriers to treat flowing acid mine waters. Acid mine drainage (AMD) occurs where sulphides (mostly pyrite, but also sulphides of other metals) are exposed to oxygen and water; the estimated global liability from AMD is over US$300 billion. There is currently no cost-effective way to prevent the release of acid and heavy metals from exposed sulphide minerals especially at abandoned m ....Pelletisation of seawater-neutralised bauxite refinery residues (Bauxsol?) for construction of permeable reactive barriers to treat flowing acid mine waters. Acid mine drainage (AMD) occurs where sulphides (mostly pyrite, but also sulphides of other metals) are exposed to oxygen and water; the estimated global liability from AMD is over US$300 billion. There is currently no cost-effective way to prevent the release of acid and heavy metals from exposed sulphide minerals especially at abandoned mine sites. This study investigates the pelletisation and use of neutralised bauxite refinery residues (Bauxsol?) to treat flowing metal-rich acid mine drainage waters using reactive-barriers that will neutralise acid and remove heavy metals without impeding flow.Read moreRead less
Mining, irrigation, and groundwater: Towards a reliable protocol for assessing the impacts of extraction on groundwater fauna and ecology. Groundwater fluctuations associated with mining and increased irrigation demands, potentially threaten many of Australia's unique groundwater invertebrates (stygofauna) with extinction. Stygofauna represent a hidden store of biodiversity and are thought to have a critical, but poorly understood, role in enhancing groundwater quality. Environmentally sustainab ....Mining, irrigation, and groundwater: Towards a reliable protocol for assessing the impacts of extraction on groundwater fauna and ecology. Groundwater fluctuations associated with mining and increased irrigation demands, potentially threaten many of Australia's unique groundwater invertebrates (stygofauna) with extinction. Stygofauna represent a hidden store of biodiversity and are thought to have a critical, but poorly understood, role in enhancing groundwater quality. Environmentally sustainable development of groundwater resources is hampered by a dearth of information on the ecological needs of stygofauna and how they respond to human-induced change. Using field and laboratory experiments, we aim to determine how water table fluctuations threaten stygofauna. From our results we will develop sampling and management protocols to monitor and protect stygofauna communities.Read moreRead less
Development of a risk assessment tool to minimise mixed metals toxicities from mine tailings. Research based on animal uptake from mine tailings is required to quantify comparative bioavailability of mixtures of metals to provide data for mine rehabilitation design during the planning stage. Such data also provides risk assessment in humans. The optimum balance is minimum environmental effects from the rehabilitated mine structure versus minimised cost through planning prior to project commencem ....Development of a risk assessment tool to minimise mixed metals toxicities from mine tailings. Research based on animal uptake from mine tailings is required to quantify comparative bioavailability of mixtures of metals to provide data for mine rehabilitation design during the planning stage. Such data also provides risk assessment in humans. The optimum balance is minimum environmental effects from the rehabilitated mine structure versus minimised cost through planning prior to project commencement. The significant cost of mining ore bodies, particularly by modern open cut methods, is the removal of rock and soil. The research on animal toxicity testings will provide a tool to more accurately detail mine rehabilitation and give quantitative indicators for closure.Read moreRead less
Understanding salt dynamics to facilitate water reuse on coal mine sites. Coal mining in Central Queensland occurs in a water scarce region. Coal is a very high value product per unit of water consumed. The industry wishes to expand and to meet current water needs partially by increasing water reuse on site. Difficulties associated with managing salt, in its various forms across a mine site, limit this. This project will produce operational guidelines to overcome these limitations allowing th ....Understanding salt dynamics to facilitate water reuse on coal mine sites. Coal mining in Central Queensland occurs in a water scarce region. Coal is a very high value product per unit of water consumed. The industry wishes to expand and to meet current water needs partially by increasing water reuse on site. Difficulties associated with managing salt, in its various forms across a mine site, limit this. This project will produce operational guidelines to overcome these limitations allowing the coal industry to decrease its water footprint by increasing and properly managing water reuse.Read moreRead less
Mine-site rehabilitation through novel plant and microbe interactions. This project will endeavour to improve restoration technologies aimed at reconstructing diverse and resilient new plant communities following disturbance. The factors which govern successful outcomes of restoration are not fully understood. Current restoration practices rely on the soil microbial community to generate key microbial ecosystem services but their function in novel post-mining substrates modified with soil amelio ....Mine-site rehabilitation through novel plant and microbe interactions. This project will endeavour to improve restoration technologies aimed at reconstructing diverse and resilient new plant communities following disturbance. The factors which govern successful outcomes of restoration are not fully understood. Current restoration practices rely on the soil microbial community to generate key microbial ecosystem services but their function in novel post-mining substrates modified with soil ameliorants is limited. The project aims to use next-generation DNA sequencing to elucidate the structure and function of microbial ecosystem dynamics in modified substrates and apply this understanding to improve restoration outcomes for species and communities affected by the expansion of mining activities in the Pilbara and nationally.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120101890
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Purification of contaminated wastewaters by modified Bayer layered double hydroxides. This project intends to develop enhanced adsorbent materials, prepared from industrial wastewater and seawater, for the decontamination of environments affected by Australian industries. This inexpensive novel material will be applicable to a wide range of purification applications and will reduce the environmental impact of Australian industries.
Improved quality and interpretation of terrestrial fauna surveys for environmental impact assessments in the mining industry. This study will improve the quality and interpretation of the terrestrial fauna surveys used as a basis for Environmental Impact Assessment in the mining industry. As a consequence, the Environment Protection Authority will better understand the potential impacts of mining on biodiversity and ecosystems, and can place more appropriate conditions on mining companies and th ....Improved quality and interpretation of terrestrial fauna surveys for environmental impact assessments in the mining industry. This study will improve the quality and interpretation of the terrestrial fauna surveys used as a basis for Environmental Impact Assessment in the mining industry. As a consequence, the Environment Protection Authority will better understand the potential impacts of mining on biodiversity and ecosystems, and can place more appropriate conditions on mining companies and their rehabilitation programs. In addition, the study will report on strategies for detecting rare and endangered species, and the development of appropriate databases to enable terrestrial fauna data to be interpreted in the context of soils and vegetation at habitat, landscape and regional scales.Read moreRead less
Ecologically responsible mining to fuel a green energy transition. An energy transition is key to tackling climate change. However, renewable energy is mineral intensive and boosting its supply may create new mining threats to biodiversity. This project aims to facilitate strategic development of ecologically responsible mining. It expects to reveal where new mines will be needed to meet future energy demand, and create innovative tools to predict and mitigate threats to plants and animals. Expe ....Ecologically responsible mining to fuel a green energy transition. An energy transition is key to tackling climate change. However, renewable energy is mineral intensive and boosting its supply may create new mining threats to biodiversity. This project aims to facilitate strategic development of ecologically responsible mining. It expects to reveal where new mines will be needed to meet future energy demand, and create innovative tools to predict and mitigate threats to plants and animals. Expected outcomes include an improved ability to inform sustainable climate and energy policies, leading to strategic investment decisions, cleaner mineral supply chains and conservation outcomes that capture valuable environmental and social benefits and create a competitive advantage for Australia’s mining sector.Read moreRead less