Nitrogen Removal in Wastewater Treatment Using the Nitrite Pathway. Nitrogen removal from our wastewater is becoming very important in most parts of Australia to protect our unique aquatic environment. This removal is achieved biologically through two steps: Nitrification converts ammonium via nitrite to nitrate; and denitrification converts nitrate via nitrite again to harmless nitrogen gas. This project aims to develop a method that allows this process to go just via nitrite, instead of nitrat ....Nitrogen Removal in Wastewater Treatment Using the Nitrite Pathway. Nitrogen removal from our wastewater is becoming very important in most parts of Australia to protect our unique aquatic environment. This removal is achieved biologically through two steps: Nitrification converts ammonium via nitrite to nitrate; and denitrification converts nitrate via nitrite again to harmless nitrogen gas. This project aims to develop a method that allows this process to go just via nitrite, instead of nitrate, to nitrogen gas. This would significantly reduce oxygen and/or carbon requirement in nitrogen removal. If successful, the new operating method will allow modern wastewater treatment plants to achieve a better effluent quality at lower costs.Read moreRead less
Impact of increased sediment and nutrient discharges on the long-term sustainability of the Great Barrier Reef. The Great Barrier Reef, one of Australia's greatest natural assets, is under increasing threat from extreme climatic events caused by global warming and from land-based pollution. This research will identify the main sources of sediment and nutrient pollution caused by river runoff and by how much this has increased above 'natural levels'. We will discover how the very sensitive offsho ....Impact of increased sediment and nutrient discharges on the long-term sustainability of the Great Barrier Reef. The Great Barrier Reef, one of Australia's greatest natural assets, is under increasing threat from extreme climatic events caused by global warming and from land-based pollution. This research will identify the main sources of sediment and nutrient pollution caused by river runoff and by how much this has increased above 'natural levels'. We will discover how the very sensitive offshore coral reefs have responded to increased pollution and whether this is the cause of the very devastating crown-of-thorn-starfish infestations. Understanding the long-term effects of land-based pollution on the ecology of coral reefs in the GBR will thus provide a scientific basis to help ensure that it has a sustainable future.Read moreRead less