Maximising Bioenergy Recovery from Sewage Sludge. Sewage treatment is producing large amounts of sewage sludge, which represents a substantial, but largely untapped, energy source. This project aims to develop and demonstrate an innovative, economically attractive and environmentally friendly technology, and the underpinning science, to maximize bioenergy recovery from sewage sludge. The technology is based on the treatment of sludge using free ammonia, a by-product of sewage treatment. This pro ....Maximising Bioenergy Recovery from Sewage Sludge. Sewage treatment is producing large amounts of sewage sludge, which represents a substantial, but largely untapped, energy source. This project aims to develop and demonstrate an innovative, economically attractive and environmentally friendly technology, and the underpinning science, to maximize bioenergy recovery from sewage sludge. The technology is based on the treatment of sludge using free ammonia, a by-product of sewage treatment. This project is expected to benefit Australia by substantially reducing the reliance on fossil fuels and accelerating a shift to affordable renewable energy. The outcomes of the project would provide significant energy, economic, environmental and social benefits for Australians. Read moreRead less
A novel microbial process breaking through the nitrogen cycling. Nitrogen transformation is central to life on Earth. This project will challenge a century-old paradigm that microorganisms must cooperate in a team to convert nitrogen from organic- to inorganic forms. We will carry out the first-ever systematic investigation of a novel process, where a single organism mediates complete ammonification and ammonia oxidation, directly connecting organic- and inorganic nitrogen. By revealing metaboli ....A novel microbial process breaking through the nitrogen cycling. Nitrogen transformation is central to life on Earth. This project will challenge a century-old paradigm that microorganisms must cooperate in a team to convert nitrogen from organic- to inorganic forms. We will carry out the first-ever systematic investigation of a novel process, where a single organism mediates complete ammonification and ammonia oxidation, directly connecting organic- and inorganic nitrogen. By revealing metabolic pathways, characterising ecophysiological properties, isolating key microorganisms and exploring their application potential, this project will change our fundamental understanding of global nitrogen cycling, improve the sustainability of water management, and contribute to the circular economy transitionRead moreRead less
A Green Technology for Enhancing Resource Recovery from Sewage Sludge. This project aims to develop an innovative technology to recover valuable resource from sewage sludge by enhancing transformation of sewage sludge into high-value medium chain fatty acids and methane. Wastewater treatment generates large amounts of resource-rich sewage sludge. However, the poor biodegradability of sewage sludge is a key barrier that impedes the efficient resource recovery. By advancing the underpinning scienc ....A Green Technology for Enhancing Resource Recovery from Sewage Sludge. This project aims to develop an innovative technology to recover valuable resource from sewage sludge by enhancing transformation of sewage sludge into high-value medium chain fatty acids and methane. Wastewater treatment generates large amounts of resource-rich sewage sludge. However, the poor biodegradability of sewage sludge is a key barrier that impedes the efficient resource recovery. By advancing the underpinning science and introducing a novel technology that innovatively harnesses a human waste, the project expects to remove the barrier. Expected project outcomes will turn sewage sludge from an undesirable waste to a valuable resource. This should provide significant benefits for Australia’s renewable energy and resource sectors.Read moreRead less
Overcoming microplastics induced inhibition on waste-to-energy conversion . This project aims to develop an innovative technology and the underpinning science to achieve stable and efficient mitigation of emerging microplastics induced inhibition that is becoming a key barrier hindering waste-to-energy conversion in anaerobic digestion. Anaerobic digestion is a low-cost technology widely used to divert sewage sludge to renewable energy production. However, the increasing levels of microplastics ....Overcoming microplastics induced inhibition on waste-to-energy conversion . This project aims to develop an innovative technology and the underpinning science to achieve stable and efficient mitigation of emerging microplastics induced inhibition that is becoming a key barrier hindering waste-to-energy conversion in anaerobic digestion. Anaerobic digestion is a low-cost technology widely used to divert sewage sludge to renewable energy production. However, the increasing levels of microplastics captured in sludge leads to low methane yield and process failure due to their small size and specific characteristics. The outcome of the project will remove the emerging barrier to enhance energy recovery that can be applied in existing anaerobic digestion infrastructure for addressing Australia’s increasing energy demand.Read moreRead less
Novel high retention membrane bioreactors for sustainable water reuse: Process performance and optimization. The protection of public health from chemicals of emerging concern is of paramount priority. This research aims to establish a design framework for the development of high retention membrane bioreactor systems for water reuse applications. Fundamental aspects underlying the performance of such systems including removal efficiencies of chemicals of emerging concern, effects of salinity bui ....Novel high retention membrane bioreactors for sustainable water reuse: Process performance and optimization. The protection of public health from chemicals of emerging concern is of paramount priority. This research aims to establish a design framework for the development of high retention membrane bioreactor systems for water reuse applications. Fundamental aspects underlying the performance of such systems including removal efficiencies of chemicals of emerging concern, effects of salinity build-up, membrane fouling and membrane stability will be systematically elucidated. The research will result in novel treatment processes with enhanced performance in the removal of chemicals of emerging concern and substantial economic savings in both operating and capital costs.Read moreRead less
Unravelling the dynamics of nitrous oxide production in wastewater systems. This project aims to unravel the dynamics of Nitrous oxide (N2O) production in wastewater treatment systems by combining continuous stable isotope tracing techniques with innovative experimental design and sophisticated mathematical modelling. Nitrous oxide (N2O) is a potent greenhouse gas and a major contributor to the carbon footprint of wastewater treatment systems. Yet we have a poor understanding of how it is produc ....Unravelling the dynamics of nitrous oxide production in wastewater systems. This project aims to unravel the dynamics of Nitrous oxide (N2O) production in wastewater treatment systems by combining continuous stable isotope tracing techniques with innovative experimental design and sophisticated mathematical modelling. Nitrous oxide (N2O) is a potent greenhouse gas and a major contributor to the carbon footprint of wastewater treatment systems. Yet we have a poor understanding of how it is produced in such systems. The outcomes of this project will benefit Australian water utilities by helping them to reduce N2O emissions.Read moreRead less
Contribution of Comammox Process to Sustainable Wastewater Treatment. This project aims to understand the versatility, activity and physiological features of comammox bacteria, the newly-discovered complete nitrifiers, in Australian wastewater treatment systems, and to model and evaluate their contributions to biological nitrogen removal process. Nitrogen transformations are crucial microbial processes in the wastewater treatment ecosystems, with nitrification largely responsible for ammonium ox ....Contribution of Comammox Process to Sustainable Wastewater Treatment. This project aims to understand the versatility, activity and physiological features of comammox bacteria, the newly-discovered complete nitrifiers, in Australian wastewater treatment systems, and to model and evaluate their contributions to biological nitrogen removal process. Nitrogen transformations are crucial microbial processes in the wastewater treatment ecosystems, with nitrification largely responsible for ammonium oxidation but comammox previously overlooked. The expected outcomes will develop new knowledge on the comammox process and provide novel insight and technological solution to refine strategies to manipulate nitrification processes for achieving improved biological nitrogen removal and sustainable wastewater management.Read moreRead less
Novel water treatment processes. The objective of this project is the discovery of novel methods for the treatment and reuse of water for both industrial and household applications. Improved treatment systems with the potential for water reuse offer significant improvements to our overall water management potential. The first part of the project is designed to focus on the study of hot bubble column evaporators for solute decomposition, sterilisation and the de-watering of heavily contaminated i ....Novel water treatment processes. The objective of this project is the discovery of novel methods for the treatment and reuse of water for both industrial and household applications. Improved treatment systems with the potential for water reuse offer significant improvements to our overall water management potential. The first part of the project is designed to focus on the study of hot bubble column evaporators for solute decomposition, sterilisation and the de-watering of heavily contaminated industrial wastewater. The second part would be based on the study of a suitable depth filter medium for the treatment of partially treated household sewage water. This is designed to form part of an on-site household sewage water treatment and reuse system which is currently being developed.Read moreRead less