Special Research Initiatives - Grant ID: SR180100009
Funder
Australian Research Council
Funding Amount
$999,082.00
Summary
Holistic remediation of PFAS-affected soil, water and debris. This project aims to provide a holistic waste-to-resource remediation strategy for per- and poly-fluroalkyl substance (PFAS) contamination. This project expects to provide improved efficiency of remediation strategies for PFAS contaminated sites, to create new resource materials in construction and remediation from combinations of waste streams for the high-temperature destruction of PFAS. Expected benefits include inexpensive and eff ....Holistic remediation of PFAS-affected soil, water and debris. This project aims to provide a holistic waste-to-resource remediation strategy for per- and poly-fluroalkyl substance (PFAS) contamination. This project expects to provide improved efficiency of remediation strategies for PFAS contaminated sites, to create new resource materials in construction and remediation from combinations of waste streams for the high-temperature destruction of PFAS. Expected benefits include inexpensive and effective treatment of PFAS contaminated sites, development of new markets around materials for environmental remediation and a mechanism to turn waste products into valuable resources, minimising the volume of wastes going to landfill. In addition, the environmental sector will benefit from improved implementation of policy around end-to-end and whole-of-life-cycle remediation of wastes and reclassification of wastes as high value resources suitable for construction and remediation.Read moreRead less
Mineral transformation and oxidant production in subsurface environments. Sporadic influx of oxygen-rich rainwater / groundwater into subsurface waste sites induces dramatic biogeochemical changes which greatly influence the transport of contaminants present. In this project, fundamental knowledge gaps regarding the impacts of redox oscillations upon contaminant behaviour in these sediments will be addressed through a comprehensive program of field studies at a purpose-constructed experimental f ....Mineral transformation and oxidant production in subsurface environments. Sporadic influx of oxygen-rich rainwater / groundwater into subsurface waste sites induces dramatic biogeochemical changes which greatly influence the transport of contaminants present. In this project, fundamental knowledge gaps regarding the impacts of redox oscillations upon contaminant behaviour in these sediments will be addressed through a comprehensive program of field studies at a purpose-constructed experimental facility in an existing waste site, and complementary laboratory investigations. The intended outcomes are to improve understanding of contaminant mobility at the field-scale in these pervasive sites spread across the globe, and provide critical insight into their remediation using cost-effective techniques.Read moreRead less
Development of a novel adsorbent to extract rubidium from sea water. Disposal of rejected brine from seawater reverse osmosis desalination plants causes major pollution problems and existing solutions are expensive. Recovery of valuable metals such as rubidium (Rb) after further concentration of the brine will lead to environmental and economic benefits. This project aims to develop a novel electrospun nanofibre membrane distillation membrane to economically concentrate the brine and to develop ....Development of a novel adsorbent to extract rubidium from sea water. Disposal of rejected brine from seawater reverse osmosis desalination plants causes major pollution problems and existing solutions are expensive. Recovery of valuable metals such as rubidium (Rb) after further concentration of the brine will lead to environmental and economic benefits. This project aims to develop a novel electrospun nanofibre membrane distillation membrane to economically concentrate the brine and to develop novel adsorbents and desorbents to recover the valuable Rb. It is expected that the concentration and recovery of Rb will lead to a sustainable way of handling the brine, as the concentration cost can be offset by the selling of Rb.Read moreRead less
Can real-time control deliver environmental flows to protect urban streams? Increased frequency and severity of both droughts and floods in a changing climate accentuate the already-severe global impacts on urban streams. This project aims to test a world-first approach to tackling this problem, using advances in real-time control technology. The approach facilitates a public-private co-management of water resources, offering simultaneous benefits in water supply, flood mitigation and provision ....Can real-time control deliver environmental flows to protect urban streams? Increased frequency and severity of both droughts and floods in a changing climate accentuate the already-severe global impacts on urban streams. This project aims to test a world-first approach to tackling this problem, using advances in real-time control technology. The approach facilitates a public-private co-management of water resources, offering simultaneous benefits in water supply, flood mitigation and provision of environmental flows to maintain healthy urban streams. It has the potential to revolutionise the way we manage water in cities, providing a model for the water industry around the world in adapting to a changing climate, turning excess and damaging urban runoff into a dual resource of water supply and environmental flows.Read moreRead less
Bio-electrochemical sulfate reduction and sulfur recovery without external carbon source. Highly acidic waterways and mining wastewaters create major environmental challenges in inland Australia. This project will use novel, solar driven biological processes to remove the acid and metals from these streams and enable beneficial reuse of the water and other resources recovered in the process.
Optimising permeable pavements with underlying reservoirs to enhance urban tree performance. This project will determine the optimal configuration of permeable pavements with underlying storage reservoirs and water delivery system to resolve the water security challenges that trees face in urban environments. This project will promote the healthy growth of urban trees and will lead to more liveable and healthier cities.
Improving water use efficiency of grapevine production in the Great Western region using effluent water and soil amelioration practices. Irrigation of vineyards with municipal wastewater is a desirable option for the viticulturists of the Great Western region of Victoria, but only if vineyard soil structure is not adversely affected. This project will (1) study the impact of dissolved chemicals in the waste water on the structure of the local sandy soils; (2) model the data to enhance understand ....Improving water use efficiency of grapevine production in the Great Western region using effluent water and soil amelioration practices. Irrigation of vineyards with municipal wastewater is a desirable option for the viticulturists of the Great Western region of Victoria, but only if vineyard soil structure is not adversely affected. This project will (1) study the impact of dissolved chemicals in the waste water on the structure of the local sandy soils; (2) model the data to enhance understanding of the key chemical and physical mechanisms controlling grey water impact in heterogeneous environments. The resulting predictive tools will have direct application in the Great Western region's vineyards, and for irrigation of grey water in vineyards across Ausralia.Read moreRead less
A Fundamental Understanding of Methane Driven Denitrification. Eutrophication in waterways due to the presence of nutrients including nitrogen is a well-recognised environmental problem. Moreton Bay, for example, used to receive 3,300 tons of nitrogen each year from point sources. Stringent nitrogen discharge limits have therefore been imposed on most wastewater treatment systems across Australia. Nitrogen removal from wastewater is commonly accomplished in a biological way involving the use of ....A Fundamental Understanding of Methane Driven Denitrification. Eutrophication in waterways due to the presence of nutrients including nitrogen is a well-recognised environmental problem. Moreton Bay, for example, used to receive 3,300 tons of nitrogen each year from point sources. Stringent nitrogen discharge limits have therefore been imposed on most wastewater treatment systems across Australia. Nitrogen removal from wastewater is commonly accomplished in a biological way involving the use of bacteria. The project aims to investigate a particular bacterial community, which is able to perform nitrogen removal from wastewater with methane as a renewable carbon source. The project will therefore lead to more sustainable wastewater treatment systems.Read moreRead less
Synthesis of Activated Carbon Supported Zero Valent Iron Nanoparticles and Application to Contaminant Degradation in Benthic Sediments. Sediment contamination is a major problem in harbours and estuaries around Australia. For example, in Sydney Harbour, a total fishing ban has been implemented as a result of excessive levels of dioxins and benzofurans in fish tissues. There is also concern at the possibility of large scale contamination of Botany Bay as a result of historic industrial activity a ....Synthesis of Activated Carbon Supported Zero Valent Iron Nanoparticles and Application to Contaminant Degradation in Benthic Sediments. Sediment contamination is a major problem in harbours and estuaries around Australia. For example, in Sydney Harbour, a total fishing ban has been implemented as a result of excessive levels of dioxins and benzofurans in fish tissues. There is also concern at the possibility of large scale contamination of Botany Bay as a result of historic industrial activity around the Bay. While dredging and on-land treatment of sediments is being adopted at the most severely contaminated sites, the cost of this approach is exorbitant. For sites where removal of contaminated sediments cannot be justified, the approach proposed in this study of a technology that entraps contaminants and enhances their in situ biodegradation is potentially a way forward.Read moreRead less
Endogenous Processes in Biological Wastewater Treatment Systems. Biomass decay, or endogenous processes play a major role in biological wastewater treatment systems, but are poorly understood at present. Drawing on the expertise of four internationally leading groups in the area, we will carry out a comprehensive and profound study of these processes. The study will yield novel designs and operational strategies for wastewater treatment plants that optimise the microbial populations to achieve l ....Endogenous Processes in Biological Wastewater Treatment Systems. Biomass decay, or endogenous processes play a major role in biological wastewater treatment systems, but are poorly understood at present. Drawing on the expertise of four internationally leading groups in the area, we will carry out a comprehensive and profound study of these processes. The study will yield novel designs and operational strategies for wastewater treatment plants that optimise the microbial populations to achieve lower sludge production and higher treatment capacity and performance. It will also deliver a reliable, yet easy to use, model for endogenous processes. Furthermore, a number of highly skilled PhD students will be trained.Read moreRead less