Water Journal : Water Journal April 2013
Yarra Park Underground Water Recycling Facility Tenix has designed and built, and is now operating, Victoria's largest standalone underground Water Recycling Facility - in Yarra Park, adjacent to the Melbourne Cricket Ground (MCG). The $22m scheme, funded by the Melbourne Cricket Club ($16 million) and the Victorian Government ($6 million), treats sewage from the local sewerage network to 'Class A' recycled water standards to irrigate the heritage-listed park and nearby Punt Road Oval, as well as for cleaning and toilet-flushing at the MCG. The plant is able to produce over 600 kilolitres of recycled water per day. As one of the first of its type in Victoria, the Tenix-designed recycling facility has been built underground, out of public view, without taking way from valuable surface land use or park amenity. Key Features The recycled water treatment process consists of screening and grit removal, biological treatment of the sewage and chemical addition for phosphate removal, filtration via membrane bioreactor (MBR) and ultrafiltration (UF) membrane systems, and disinfection via ultraviolet (UV) and chlorination. The underground plant has a trafficable roof, and architecturally designed entry and egress with a box lift and chemical unloading area. Associated infrastructure on the inlet side includes the sewer connection, diversion structure/ chamber, a 13-metre by 4.8-metre (diameter) pumping station and a rising main. Other infrastructure includes the connections into the MCG under the concourse to a pre-existing storage tank, and to Punt Road storage as well as a pump station and sludge return gravity line downstream of the sewerage take-off. The MCC and their partners were keen to ensure that the design, construction and operation of the plant minimise any impact on the park, its users and other stakeholders including residents, regulatory authorities and members. The MCC also wished to retain the aesthetics of the existing parkland and maintain the availability of parking. Our Role Tenix's in-house engineering team worked collaboratively with the MCC and their partners to ensure that all project requirements were met and also developed a number of technical and operational improvements to the original plant concept. Tenix provided the process, mechanical, civil, electrical, instrumentation and control design (including 3D modelling), and construction (including earthworks), commissioning, coding for plc/SCADA, and validation for Class A. For more information visit www.tenix.com Tenix Case Study z Highlights Sustainability The recycled water will be used for cleaning and toilet flushing at the MCG and will reduce its reliance on potable water by 50 per cent and remove it from the list of Melbourne's top 100 water users. Innovation Tenix introduced a number of technical and operational improvements to the original plant concept and employed innovative construction techniques to improve safety and minimise disruption to stakeholders and the environment. The project won the 2012 Australian Water Association (Victoria) Infrastructure Project Innovation Award.
Water Journal February 2013
Water Journal May 2013