Optimising biodegradation and removal of organic and inorganic pollutants in wastewater using constructed wetlands. The urgency of water recycling is dictated by drying climate and rapid expansion of population in Australia. Constructed wetlands are environmentally-benign way to purify wastewater by removing inorganics and facilitating biodegradation of organic pollutants, thus producing recycled water that can be used in a variety of fit-for-purpose applications. This project will produce a dec ....Optimising biodegradation and removal of organic and inorganic pollutants in wastewater using constructed wetlands. The urgency of water recycling is dictated by drying climate and rapid expansion of population in Australia. Constructed wetlands are environmentally-benign way to purify wastewater by removing inorganics and facilitating biodegradation of organic pollutants, thus producing recycled water that can be used in a variety of fit-for-purpose applications. This project will produce a decision-support system for optimising wetland performance in removing inorganics and biodegrading organic pollutants from wastewater, thus enhancing water recycling and reuse in this drying continent of ours.Read moreRead less
Regeneration of High Value-Added Materials from Spent Lithium-Ion Batteries. This project aims to develop scalable processing techniques for the regeneration of cathode materials and the production of high-purity alumina and graphene from spent lithium-ion batteries. The techniques reduce the cost and time of the processing of degraded cathode materials and increase the value of the spent battery materials (e.g., metallic aluminum and graphite) by converting them into high value-added specialty ....Regeneration of High Value-Added Materials from Spent Lithium-Ion Batteries. This project aims to develop scalable processing techniques for the regeneration of cathode materials and the production of high-purity alumina and graphene from spent lithium-ion batteries. The techniques reduce the cost and time of the processing of degraded cathode materials and increase the value of the spent battery materials (e.g., metallic aluminum and graphite) by converting them into high value-added specialty chemicals. The outcomes and further technology adoptions will extend the capacity of the Partner Organisation for producing specialty battery materials. The outcomes could help Australia’s battery industry switch to a more diversified pathway, which benefits the economic development of Australia in a long term.Read moreRead less
Unlocking mine waste potential: carbon sequestration and metals extraction. This project aims to systematically investigate a proof-of-concept engineering process for transforming mine waste into value. The research will develop and employ state-of-the-art tools to advance our knowledge of efficiently sequestering carbon dioxide using ultramafic nickel mine tailings, while also enabling the extraction of critical metals—particularly nickel—and the production of value-added products, such as high ....Unlocking mine waste potential: carbon sequestration and metals extraction. This project aims to systematically investigate a proof-of-concept engineering process for transforming mine waste into value. The research will develop and employ state-of-the-art tools to advance our knowledge of efficiently sequestering carbon dioxide using ultramafic nickel mine tailings, while also enabling the extraction of critical metals—particularly nickel—and the production of value-added products, such as high-purity magnesium carbonate hydrate and silica. Successful outcomes from this research will provide benefits for mitigating global warming, supplying critical metals for renewable energy technologies, and facilitating the transition of Australia's mining industry towards sustainability.Read moreRead less
On-line monitoring of cyanobacteria to predict coagulant doses and powdered activated carbon application in water treatment. Cyanobacteria, more commonly known as blue-green algae, can impact water quality by releasing toxins that can be harmful to human health and imparting unpleasant taste and odours to the water. This project will support the water industry in managing these risks by providing a rapid, on-line tool to assist in their removal during water treatment.
Sulphate sensor for reverse osmosis integrity and performance monitoring. Sulphate sensor for reverse osmosis integrity and performance monitoring. This project aims to investigate new chemical sensors for sulphate for online reverse osmosis integrity and performance monitoring at an advanced water recycling plant. Wastewater re-use is increasingly important in Australia and worldwide for providing potable water. Demonstrating the integrity and performance of treatment technologies is needed to ....Sulphate sensor for reverse osmosis integrity and performance monitoring. Sulphate sensor for reverse osmosis integrity and performance monitoring. This project aims to investigate new chemical sensors for sulphate for online reverse osmosis integrity and performance monitoring at an advanced water recycling plant. Wastewater re-use is increasingly important in Australia and worldwide for providing potable water. Demonstrating the integrity and performance of treatment technologies is needed to meet health regulations. Sulphate and other surrogates of biological entities enable a rapid, on-line approach to integrity and performance monitoring, but detection with available analytical chemical technology is not feasible. This research is expected to enable better management of water treatment processes and demonstrate compliance to health standards.Read moreRead less
Mitigating the risk of cyanobacterial blooms in wastewater ponds. Cyanobacterial blooms in wastewater treatment plants impact on effluent quality and the utility of recycled water, posing a significant risk to the economy, the environment and public health. To understand the causes of cyanobacterial blooms in pond-based wastewater treatment plants and the risk they pose, this project will use the latest molecular techniques to examine how the microbial communities within these systems interact w ....Mitigating the risk of cyanobacterial blooms in wastewater ponds. Cyanobacterial blooms in wastewater treatment plants impact on effluent quality and the utility of recycled water, posing a significant risk to the economy, the environment and public health. To understand the causes of cyanobacterial blooms in pond-based wastewater treatment plants and the risk they pose, this project will use the latest molecular techniques to examine how the microbial communities within these systems interact with each other and their surrounding environment to form blooms and produce toxins and other harmful metabolites. Such knowledge will inform risk assessment and provide strategies for the mitigation of future bloom events, improving the security of our increasingly valuable recycled water resources.Read moreRead less
Fate of PAPs and short-chain PFAS in biosolids amended soils. Biosolids generated during wastewater treatment contain PFAS which are persistent, bioaccumulative and toxic. Application of biosolids to agricultural land may result in soil, groundwater and surface water PFAS contamination via leaching and run-off and pose unknown potential risk to soil health, crops and beneficial biota. This study aims to generate novel knowledge on the PFAS fate in biosolid amended soils, crops and toxicity to ke ....Fate of PAPs and short-chain PFAS in biosolids amended soils. Biosolids generated during wastewater treatment contain PFAS which are persistent, bioaccumulative and toxic. Application of biosolids to agricultural land may result in soil, groundwater and surface water PFAS contamination via leaching and run-off and pose unknown potential risk to soil health, crops and beneficial biota. This study aims to generate novel knowledge on the PFAS fate in biosolid amended soils, crops and toxicity to key soil and aquatic biota at environmentally relevant concentrations. This study is supported by Australian water and its allied industries, as it is important for them to ensure that biosolids application to agricultural land is an environmentally sustainable solution to the Australian farmers and communities.Read moreRead less
Evaluating potential static liquefaction of tailings to prevent failures. This project aims to reduce risk in the mining industry from failing mine tailings by producing a methodology for predicting the susceptibility of these tailings to static liquefaction. The impact of a mine tailing failure is catastrophic to the downstream community. The project brings together a number of industry partners committed to assisting with verification and adoption of characterisation and designed tools develop ....Evaluating potential static liquefaction of tailings to prevent failures. This project aims to reduce risk in the mining industry from failing mine tailings by producing a methodology for predicting the susceptibility of these tailings to static liquefaction. The impact of a mine tailing failure is catastrophic to the downstream community. The project brings together a number of industry partners committed to assisting with verification and adoption of characterisation and designed tools development in this project. This proposal will integrate results from laboratory element, centrifuge and calibration chamber tests with numerical modelling and in-situ tests to produce a methodology for predicting the susceptibility to static liquefaction.Read moreRead less
Eco-engineering soil from mine tailings for native plant rehabilitation. Eco-engineering soil from mine tailings for native plant rehabilitation. This project aims to develop integrated and low-cost eco-engineering technology to purposefully accelerate in-situ formation of soil from tailings for sustainable native plant community rehabilitation at metal mines. Soil shortages at mines cost the Australian mining industry billions of dollars in sustainable rehabilitation of tailings, and threaten t ....Eco-engineering soil from mine tailings for native plant rehabilitation. Eco-engineering soil from mine tailings for native plant rehabilitation. This project aims to develop integrated and low-cost eco-engineering technology to purposefully accelerate in-situ formation of soil from tailings for sustainable native plant community rehabilitation at metal mines. Soil shortages at mines cost the Australian mining industry billions of dollars in sustainable rehabilitation of tailings, and threaten the industry’s ecological and commercial sustainability. Building on recent findings of critical processes in soil formation from copper/lead–zinc tailings, this research will use key biogeochemical and rhizosphere processes in the tailing-soil to create a functional 'technosol'. This technology is intended to be used in Australian metal mines to offset the soil needed to rehabilitate tailings landforms with native plant communities.Read moreRead less
In situ remediation in mine site rehabilitation. In situ remediation in mine site rehabilitation. By enhancing and guiding abiotic and biotic processes of soil development, this project aims to accelerate the in situ remediation of bauxite residue (alumina refining tailings). Over 7 gigatonnes of tailings are produced globally every year, comprising complex mineral assemblages at extremes of pH and salinity with minimal biological activity. This project will build detailed knowledge on the chemi ....In situ remediation in mine site rehabilitation. In situ remediation in mine site rehabilitation. By enhancing and guiding abiotic and biotic processes of soil development, this project aims to accelerate the in situ remediation of bauxite residue (alumina refining tailings). Over 7 gigatonnes of tailings are produced globally every year, comprising complex mineral assemblages at extremes of pH and salinity with minimal biological activity. This project will build detailed knowledge on the chemical, physical, and biological properties of bauxite residue and apply this to develop field-scale in situ remediation strategies. This research will also advance understanding of soil development and primary succession of microbial communities in extreme, anthropogenic environments such as those presented by tailings.Read moreRead less