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
Discovery Early Career Researcher Award - Grant ID: DE160100667
Funder
Australian Research Council
Funding Amount
$340,000.00
Summary
Removing a Key Barrier for Autotrophic Nitrogen Removal from Wastewater. This project aims to develop new technology to enable stable autotrophic nitrogen removal from domestic wastewater. The technology selectively suppresses the growth of nitrite-oxidising bacteria using a by-product of wastewater treatment – free nitrous acid. Maximising energy recovery from wastewater and providing greenhouse gas neutral water services have been the targets of water utilities in Australia and worldwide. The ....Removing a Key Barrier for Autotrophic Nitrogen Removal from Wastewater. This project aims to develop new technology to enable stable autotrophic nitrogen removal from domestic wastewater. The technology selectively suppresses the growth of nitrite-oxidising bacteria using a by-product of wastewater treatment – free nitrous acid. Maximising energy recovery from wastewater and providing greenhouse gas neutral water services have been the targets of water utilities in Australia and worldwide. The project will potentially change wastewater management and bring economic, environmental and social benefits to water utilities.Read moreRead less
Simultaneous dissolved methane and nitrogen removal. Direct anaerobic treatment of wastewater converts majority of organic matters in wastewater to methane, an energy source. However, up to 50% of the methane produced stays dissolved in wastewater. Its subsequent stripping to atmosphere in aerobic treatment not only causes significant loss of energy but also emission of a potent greenhouse gas. This project aims to develop a technology that not only avoids methane stripping but also enables its ....Simultaneous dissolved methane and nitrogen removal. Direct anaerobic treatment of wastewater converts majority of organic matters in wastewater to methane, an energy source. However, up to 50% of the methane produced stays dissolved in wastewater. Its subsequent stripping to atmosphere in aerobic treatment not only causes significant loss of energy but also emission of a potent greenhouse gas. This project aims to develop a technology that not only avoids methane stripping but also enables its beneficial use to enhance nitrogen removal, which is otherwise typically unsatisfactory due to the lack of organic carbon to support denitrification. The project will provide strong support to the Australian water industry in their endeavour to achieve energy- and carbon-neutral wastewater services.Read moreRead less