Events Archive

DATE & TIME: Wednesday 20 June 2018, 5.00pm for 5.30 pm start TICKETS (incl. GST): SEng & EA Members & Students FREE, Non-members $30 Across Australia and in other parts of the world, nitrogen removal has become an essential process of wastewater treatment. The conventional method of nitrogen removal - the nitrification and denitrification pathway requires substantial oxygen transfer (approximately 4.3 g of O2 for each g of ammonia-N) and carbon (about 4 g/g of NO3–N reduced). In the case of low carbon, high nitrogen wastewater, the addition of an external carbon source is required during the denitrification stage to effectively convert nitrate to nitrogen gas. These escalate the cost of the conventional nitrogen removal process, and utilities and industry have been looking for alternative low-cost nitrogen removal technologies. Some of the recent innovations in nitrogen removal include the anammox process, and struvite precipitation (precipitation of ammonium and phosphate as MgNH4-PO4, with the addition of magnesium salt if needed). This presentation discusses the retrofitting of the anaerobic ammonia oxidation process (anammox) by Environmental Engineers International Pty Ltd (EEI) to an existing abattoir wastewater treatment plant (WWTP) in Western Australia. Abattoir wastewater requires advanced treatment prior to discharge to the environment due to its high nitrogen content. Since the implementation of the EEIAnammox process over the past two years, the WWTP has consistently achieved good nitrogen removal, without any extra carbon addition. The plant is monitored online for various parameters to ensure its effective operation. The WWTP has achieved over 20% savings in overall electrical power since the implementation of the anammox process. Unlike the European case studies, the WWTP has achieved over 95% TN reduction even during the winter months when the temperature has fallen below 15oC.

Join the Sustainable Engineering Society (SENG) for an evening of networking and to hear from SENG's Immediate Past National Chair, Graham Davies, about his journey from engineering to politics. Arrive from 6pm, presentation begins 6.30pm, followed by a Q&A session, then further networking.

2017 saw the global energy scene in a state of flux. Large scale shifts include the rapid deployment and steep declines in the cost of major renewable energy technologies; the growing importance of electricity in energy use across the globe; profound changes in China’s economy and energy policy, moving consumption away from coal; and the continued surge in shale gas and tight oil production in the United States. These changes provide the backdrop for the World Energy Outlook 2017. Understanding the dynamic interplay of energy markets, technology and policy has never been more critical. Within a context of Australia’s energy transition, and the ACT’s vision of becoming carbon neutral by 2050, come along to this special presentation where: • Ian Cronshaw will provide a summary of the strategic insight on what today’s policy and investment decisions mean for the long-term trends outlined in the 2017 edition of the World Energy Outlook 2017, and • Minister Rattenbury will reflect on these trends while outlining the ACT Government’s vision to be carbon neutral by 2050.

Globally, transport is responsible for around a seventh of greenhouse gas emissions. Of this approximately two thirds are due to passenger travel and one third is due to freight. Our speakers will address aspects of transport such as: congestion, fuel vs electricity, public transport, pedal power and urban planning.