Production of Biodegradable Polyhydroxyalkanoate Polymers using Advanced Biological Wastewater Treatment Process Technology. The aim of this project is to develop a sustainable process for producing biodegradable polyhydroxyalkanoate (PHAs)polymers from an innovative aerobic-anaerobic biological wastewater treatment process, ?treating? high strength food industry effluent. These biopolymers offer enormous potential for use as renewable and biodegradable thermoplastics.
It is proposed to inve ....Production of Biodegradable Polyhydroxyalkanoate Polymers using Advanced Biological Wastewater Treatment Process Technology. The aim of this project is to develop a sustainable process for producing biodegradable polyhydroxyalkanoate (PHAs)polymers from an innovative aerobic-anaerobic biological wastewater treatment process, ?treating? high strength food industry effluent. These biopolymers offer enormous potential for use as renewable and biodegradable thermoplastics.
It is proposed to investigate two process configurations, namely the sequencing batch reactor and a continuous two step anaerobic-aerobic reaction system. These will be studied at bench-scale. The outcomes include:
1. Determination of the optimum microbial conditions and key growth
parameters for the production of PHA.
2. Optimisation of the process configuration, operating strategies
and operating conditions to maximise the
production of PHA.
3. Assessment of the influence of the feed composition (e.g. VFA)
on the PHA composition (PHB/PHV).
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Biofilm-based solution for cost-effective high-quality drinking water. Approximately 90% of the drinking water in Australia is sourced from surface water bodies, which are naturally rich in nutrients and organic matter. This leads to the growth of cyanobacteria, which are known to be a major cause of taste and odour compounds and cyanotoxins. Climate change is causing increased cyanobacterial growth due to higher temperatures, exacerbating this existing challenge to water utilities. This project ....Biofilm-based solution for cost-effective high-quality drinking water. Approximately 90% of the drinking water in Australia is sourced from surface water bodies, which are naturally rich in nutrients and organic matter. This leads to the growth of cyanobacteria, which are known to be a major cause of taste and odour compounds and cyanotoxins. Climate change is causing increased cyanobacterial growth due to higher temperatures, exacerbating this existing challenge to water utilities. This project proposes a novel biofilm-based approach for cost-effective drinking water treatment production. Our approach represents a simple retrofit to existing processes and drastically reduces the chemical dosing costs and improve climate resilience while ensuring the production of high-quality, safe drinking water.Read moreRead less
Composite conductive electrodes for low energy desalination. Good quality drinking water supply is a critical issue for water security particularly for inland regional and remote communities, where seawater desalination is not a feasible option. The proposed research has the great potential to develop an alternative, low cost, robust desalination process for brackish water supplies. The superior electrode materials are the key to achieve this goal. The water industry will use the information to ....Composite conductive electrodes for low energy desalination. Good quality drinking water supply is a critical issue for water security particularly for inland regional and remote communities, where seawater desalination is not a feasible option. The proposed research has the great potential to develop an alternative, low cost, robust desalination process for brackish water supplies. The superior electrode materials are the key to achieve this goal. The water industry will use the information to assist their decision making for future water supply augmentation in regional communities. High capacity and lower energy forms of desalination are critical to ensuring desalinated water comes at an affordable price for the regional communities.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.
Mitigation of silica nanoparticle scaling in water treatment. This project aims to develop strategies to mitigate silica scaling at coal seam gas (CSG) water treatment facilities. CSG is adsorbed to the surface of coal along fractures and cleats and released when pressure is reduced by removal of groundwater, which has chemistry specific to the region from which it is extracted. Desalination of produced water is severely impacted by mineral scaling on reverse osmosis membranes. This project will ....Mitigation of silica nanoparticle scaling in water treatment. This project aims to develop strategies to mitigate silica scaling at coal seam gas (CSG) water treatment facilities. CSG is adsorbed to the surface of coal along fractures and cleats and released when pressure is reduced by removal of groundwater, which has chemistry specific to the region from which it is extracted. Desalination of produced water is severely impacted by mineral scaling on reverse osmosis membranes. This project will consider silica and silica-rich nanoparticles in concert with cations and organics, with the aim of better managing cations so to facilitate nanoparticle lubrication. Project outcomes may include more productive use of assets, improved pre-treatment infrastructure to support reverse osmosis operation, and the environmental benefits of reduced chemical waste and increased water recovery.Read moreRead less
People, Pumps and Pipes: A social study of change in the collaborative supply of irrigation services. The research addresses key National Priorities and Priority Goals relating to improved sustainable water management in Australia's foremost river system. The research offers deeper understanding of the social dimensions of National Water Initiative reforms, and specifically motivations for irrigators' decisions contributing to more sustainable water use following legislative reforms. The project ....People, Pumps and Pipes: A social study of change in the collaborative supply of irrigation services. The research addresses key National Priorities and Priority Goals relating to improved sustainable water management in Australia's foremost river system. The research offers deeper understanding of the social dimensions of National Water Initiative reforms, and specifically motivations for irrigators' decisions contributing to more sustainable water use following legislative reforms. The project links understanding of the nexus between policy and environmental behaviour to advance knowledge of more sustainable water use. Given the current demands on water in the Murray-Darling system and the systems national significance, the research will make a vital contribution to management of this critical national resource.Read moreRead less
Achieving Nitrite Shunt For Mainstream Sewage Treatment Using Human Waste. This project aims to develop a novel technology to achieve mainstream nitrogen removal from domestic sewage via nitrite shunt. Nitrite shunt can reduce energy consumption and promote energy recovery compared with the conventional nitrogen removal process. However, it is difficult to inactivate nitrite-oxidising bacteria, which is a key barrier for achieving nitrite shunt. By advancing the underpinning science and introduc ....Achieving Nitrite Shunt For Mainstream Sewage Treatment Using Human Waste. This project aims to develop a novel technology to achieve mainstream nitrogen removal from domestic sewage via nitrite shunt. Nitrite shunt can reduce energy consumption and promote energy recovery compared with the conventional nitrogen removal process. However, it is difficult to inactivate nitrite-oxidising bacteria, which is a key barrier for achieving nitrite shunt. By advancing the underpinning science and introducing a novel technology that innovatively harnesses a human waste, the project expects to remove the barrier. Expected outcomes will support the transformation of sewage treatment plants into net-zero energy generators. This should provide economic, environmental and energy benefits for Australia’s water and energy sectors.Read moreRead less
Feasibility of biological hydrogen production from biomass wastes using activate sludge microorganisms. This study will focus on biological hydrogen production from biomass wastes, not only because hydrogen is a clean and high efficient energy, but also because it can be a process for waste treatment. The research is aimed at examining the feasibility of biological hydrogen production from an organic waste stream by hydrogen producing bacteria isolated and enriched from pretreated digested activ ....Feasibility of biological hydrogen production from biomass wastes using activate sludge microorganisms. This study will focus on biological hydrogen production from biomass wastes, not only because hydrogen is a clean and high efficient energy, but also because it can be a process for waste treatment. The research is aimed at examining the feasibility of biological hydrogen production from an organic waste stream by hydrogen producing bacteria isolated and enriched from pretreated digested activated sludge. The overall goal is to get better understanding of the biochemical mechanisms, metabolic pathways effecting on the intermediate and end-products, leading to high hydrogen productivity and yield.Read moreRead less
Use of Organic Residues in Edible Mushroom Production. The aims are to develop growth and casing materials for mushroom production based on organic wastes. Casing peat is the most expensive raw ingredient used in mushroom production and there are major concerns over supply due to increasing environmental concerns in supplier countries and quarantine issues such as the recent foot and mouth outbreak in Europe. This project will develop alternatives to imported peats as casing materials and invest ....Use of Organic Residues in Edible Mushroom Production. The aims are to develop growth and casing materials for mushroom production based on organic wastes. Casing peat is the most expensive raw ingredient used in mushroom production and there are major concerns over supply due to increasing environmental concerns in supplier countries and quarantine issues such as the recent foot and mouth outbreak in Europe. This project will develop alternatives to imported peats as casing materials and investigate a range of organic residues which can be used as basic growth media for button and exotic mushrooms. This will increase the viability and sustainability of the mushroom industry in Australia.Read moreRead less
Impact of natural organic matter and nutrients on water quality: identification of catchment sources and attenuation processes. Development of a decision support model for land-use selection that protects water resources will be of significant benefit to the water industry. The outcomes of this project will provide water and catchment managers with a technology that significantly secures the supply of resources for high quality drinking water.