Australian Centre for Water
and Environmental Biotechnology

Project Dates: 2013 to 2016


Nitrogen removal from wastewater is crucial to protect Australia’s sensitive environments. This project will investigate the kinetic and physiological properties of the recently discovered ammonia-oxidizing archaea (AOA), and develop an innovative one-step nitrogen removal process by enriching AOA and Anammox, achieving completely autotrophic nitrogen removal under oxygen-limited condition. Compared to the nitrogen removal processes commonly used today, this one-step process consumes much less energy and does not require a carbon source. It can also mitigate greenhouse gas emission from wastewater. This project will provide fundamental support to the development of new processes that enable more sustainable nitrogen removal process. This would bring considerable benefits to the Australian wastewater industry and could potentially influence the way that biological nutrient removal plants is designed and operated.