Understanding the role of vegetation in nitrogen removal by biofiltration. Many of Australia's bays and waterways are threatened by eutrophication due to excess nitrogen loads, particularly from urban stormwater. Biofiltration systems are a widely used (Melbourne Water alone has a programme of constructing 10000 systems in partnership with municipalities over the next 5 years) and potentially effective treatment, but their nitrogen removal is highly dependent on the type of vegetation used. Th ....Understanding the role of vegetation in nitrogen removal by biofiltration. Many of Australia's bays and waterways are threatened by eutrophication due to excess nitrogen loads, particularly from urban stormwater. Biofiltration systems are a widely used (Melbourne Water alone has a programme of constructing 10000 systems in partnership with municipalities over the next 5 years) and potentially effective treatment, but their nitrogen removal is highly dependent on the type of vegetation used. This project will improve the understanding of the role of vegetation in nitrogen retention by stormwater biofilters, and will thus provide important guidance on plant selection and design for biofiltration.Read moreRead less
Internal wave energetics, mixing and transport in lakes. The aim of this project is to increase our understanding of the physical processes controlling water quality in lakes. Water supplies world-wide are under increasing pressure from development, usually resulting in decreasing water quality. The biology and chemistry in lakes is controlled primarily by physical processes, and so understanding these processes is crucial to managing water quality in lakes and reservoirs. The outcomes of this p ....Internal wave energetics, mixing and transport in lakes. The aim of this project is to increase our understanding of the physical processes controlling water quality in lakes. Water supplies world-wide are under increasing pressure from development, usually resulting in decreasing water quality. The biology and chemistry in lakes is controlled primarily by physical processes, and so understanding these processes is crucial to managing water quality in lakes and reservoirs. The outcomes of this project will be improved tools for the management of these water resources, as all the research findings will be incorporated into already existing numerical models for lake management.Read moreRead less
Fluorescence as a tool for sensitive detection of failures in recycled water treatment and distribution systems. Water reuse is emerging as a key strategy for the conservation of drinking water supplies around Australia. Accordingly, there is a need for fast, reliable, affordable and highly sensitive means of ensuring the reliability of treatment processes and final water quality. This research aims to meet such needs by providing new tools based on fluorescence analysis. These tools are to be i ....Fluorescence as a tool for sensitive detection of failures in recycled water treatment and distribution systems. Water reuse is emerging as a key strategy for the conservation of drinking water supplies around Australia. Accordingly, there is a need for fast, reliable, affordable and highly sensitive means of ensuring the reliability of treatment processes and final water quality. This research aims to meet such needs by providing new tools based on fluorescence analysis. These tools are to be implemented for online monitoring of treatment performance and for the identification of accidental contamination of drinking waters by recycled water. The enhanced ability to ensure both recycled water quality and drinking water quality will have public health and environmental benefits as well as protecting public confidence in water recycling systems.Read moreRead less
Sustainability of water and wastewater treatment chemicals. In recent years, the environmental design and management of water and wastewater treatment facilities has broadened from consideration of water quality outcomes to include the environmental consequences of energy and material inputs. This has produced nationally agreed approaches to estimating greenhouse gas emissions from power consumption, but for important chemical additives analysts are forced to work with low-quality estimated dat ....Sustainability of water and wastewater treatment chemicals. In recent years, the environmental design and management of water and wastewater treatment facilities has broadened from consideration of water quality outcomes to include the environmental consequences of energy and material inputs. This has produced nationally agreed approaches to estimating greenhouse gas emissions from power consumption, but for important chemical additives analysts are forced to work with low-quality estimated data. In a time when society wants to account for the 'carbon-footprint' of decisions and more broadly consider the resources used and emissions produced by industry, this research will make this quantitatively possible for chemicals used in water and wastewater treatment.Read moreRead less