Stabilisation of Titania Pigment Slurries During Processing. This project aims to improve the stabilisation properties of titania pigment slurries during production. Current polyphosphate dispersants used by Tiwest are unstable under processing conditions. Tailored, robust dispersing reagents will therefore be investigated in order to provide improved stabilisation of pigments during processing. Enhanced understanding of the dispersing reagents interaction with the titania pigment surface and th ....Stabilisation of Titania Pigment Slurries During Processing. This project aims to improve the stabilisation properties of titania pigment slurries during production. Current polyphosphate dispersants used by Tiwest are unstable under processing conditions. Tailored, robust dispersing reagents will therefore be investigated in order to provide improved stabilisation of pigments during processing. Enhanced understanding of the dispersing reagents interaction with the titania pigment surface and the subsequent stability of the pigment will allow advances in processing and consequently improved final products. The potential growth in market share, by improved product performance, is in excess of $50M pa.Read moreRead less
Monitoring and Modelling Hydrogeochemical Interactions with Groundwater : Implications for Mine Dewatering on Groundwater, River and Lake Chemistry. Alcoa operates a power station and brown coal mine at Anglesea in western Victoria. Following heavy rain in 2000 acidic water entered the Anglesea estuary causing precipitation of iron and aluminium flocs and fish kills. Estuary closure to tourism resulted. This project will identify the cause(s) of this phenomenon by modelling groundwater movement ....Monitoring and Modelling Hydrogeochemical Interactions with Groundwater : Implications for Mine Dewatering on Groundwater, River and Lake Chemistry. Alcoa operates a power station and brown coal mine at Anglesea in western Victoria. Following heavy rain in 2000 acidic water entered the Anglesea estuary causing precipitation of iron and aluminium flocs and fish kills. Estuary closure to tourism resulted. This project will identify the cause(s) of this phenomenon by modelling groundwater movement and studying geochemical processes. The resultant hydrogeochemical model will also be applied to simulating longer term water quality changes in the catchment arising from current mine dewatering operations and future rewatering following mine closure.
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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
Nano-scale modification of gold surfaces for sensing mercury from gaseous effluents of alumina refineries. The Australian alumina industry contributes more than $5.4 billion export income annually. It is also a major driver of the rural economy with all but one of Australia's seven alumina refineries located in rural areas. In response to the industry's attempts to reduce the environmental impact of its processes, this project will conduct basic strategic research into the interaction between m ....Nano-scale modification of gold surfaces for sensing mercury from gaseous effluents of alumina refineries. The Australian alumina industry contributes more than $5.4 billion export income annually. It is also a major driver of the rural economy with all but one of Australia's seven alumina refineries located in rural areas. In response to the industry's attempts to reduce the environmental impact of its processes, this project will conduct basic strategic research into the interaction between mercury vapour and gold surfaces at the nano-level. Our principal aim is to develop mercury sensor technology suited to alumina refineries. This innovative technology will be a significant breakthrough in the control of mercury emissions and have many other applications.
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Heat capacities of Bayer liquors to 300C. Alumina refining is one of Australia's most important industries, earning ~$6 billion per year export income. However, major productivity gains are required for Australian producers to remain globally competitive. More accurate thermodynamic calculations, covering the full plant operating range, are seen by the industry as an important way to increase productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must e ....Heat capacities of Bayer liquors to 300C. Alumina refining is one of Australia's most important industries, earning ~$6 billion per year export income. However, major productivity gains are required for Australian producers to remain globally competitive. More accurate thermodynamic calculations, covering the full plant operating range, are seen by the industry as an important way to increase productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must extend current theoretical understanding and establish an experimental capability, hitherto unavailable in Australia, for measuring heat capacities and densities of solutions to temperatures as high as 300 C.Read moreRead less
Environmentally responsive clean coatings. Nature makes use of a range of fascinating surface properties, such as the leaves of the Lotus plant which stay clean even in dirty environments. In this project we will explore the molecular properties of novel polymer coated surfaces that-similar to some natural surfaces-can adapt to changing environmental stimuli and be resistant to contamination. Specifically, we aim to develop self-cleaning polymer coatings which can reversibly switch from wettab ....Environmentally responsive clean coatings. Nature makes use of a range of fascinating surface properties, such as the leaves of the Lotus plant which stay clean even in dirty environments. In this project we will explore the molecular properties of novel polymer coated surfaces that-similar to some natural surfaces-can adapt to changing environmental stimuli and be resistant to contamination. Specifically, we aim to develop self-cleaning polymer coatings which can reversibly switch from wettable to non-wettable with changing temperature and humidity. These self-cleaning polymer surfaces with environmentally responsive properties will add value to pre-painted steel products and other coatings.Read moreRead less
Functional nano-porous metal membranes for sustainable separation in industrial processes. There are many waste streams that need to be purified which degrade conventional membranes. This project with local company AMS aims to develop nano-porous metal membranes as a sustainable alternative to conventional membrane materials. Highly porous and ultra-thin metal membrane sheets with narrowly distributed nano-scale pores will be fabricated and functionalised to purify both model and industrial wast ....Functional nano-porous metal membranes for sustainable separation in industrial processes. There are many waste streams that need to be purified which degrade conventional membranes. This project with local company AMS aims to develop nano-porous metal membranes as a sustainable alternative to conventional membrane materials. Highly porous and ultra-thin metal membrane sheets with narrowly distributed nano-scale pores will be fabricated and functionalised to purify both model and industrial wastewaters. This intends to lead to the production of stronger, more versatile and chemically stable membrane materials that will exhibit longer lifespan and performance. The most significant outcome is expected to be low cost metal alloys with pores below the current 100 nm benchmark and assess their thermo-chemical stability.Read moreRead less
Unraveling the nitrogen cycle in a periodically anoxic estuary. Climate change is likely to lead to reduced river inflows to estuaries which can lead to oxygen depletion and major changes in nutrient cycling. This project will help inform the public and policy makers about the role of environmental flows in maintaining estuarine function, and thus guide future decisions on environmental flow requirements in the Yarra River Estuary. The benefits of this understanding will also flow on to improv ....Unraveling the nitrogen cycle in a periodically anoxic estuary. Climate change is likely to lead to reduced river inflows to estuaries which can lead to oxygen depletion and major changes in nutrient cycling. This project will help inform the public and policy makers about the role of environmental flows in maintaining estuarine function, and thus guide future decisions on environmental flow requirements in the Yarra River Estuary. The benefits of this understanding will also flow on to improved understanding and management of nitrogen loads to Port Phillip Bay. This project will form a close collaborative partnership between Monash University, Melbourne Water and the EPA. This collaboration will ensure the integration of cutting edge science with innovative management regimes Read moreRead less
Novel semio-chemical approach to control the Australian Sheep Blowfly . The Australian Federal Government through the 'Smart Farming' initiative highlights the need for improved multidisciplinary measures in order to remain at the global forefront of the invention and adoption of technology. This multidisciplinary project (entomology, biotechnology, analytical chemistry and genomics) will rapidly inform the management of fly strike on an important Australian resource merino sheep. This will bui ....Novel semio-chemical approach to control the Australian Sheep Blowfly . The Australian Federal Government through the 'Smart Farming' initiative highlights the need for improved multidisciplinary measures in order to remain at the global forefront of the invention and adoption of technology. This multidisciplinary project (entomology, biotechnology, analytical chemistry and genomics) will rapidly inform the management of fly strike on an important Australian resource merino sheep. This will build the key biochemical data in order to develop a novel fly lure technology (at scale) to be used on farm delivering national benefit through improved animal welfare and safety considerations for producers, and will establish the best approach to disseminate this scientific information to stakeholders such as farmers.Read moreRead less
Advanced studies on the hydrometallurgy and electrochemistry of primary copper sulphide ores. The exploitation of low quality copper ores is hampered by our poor understanding of the fundamental chemistry involved. In this project, advanced techniques will be developed to understand the leaching of copper to a level of detail not obtained before. This will allow mining companies to extract copper with minimal environmental footprint.