![]() ![]() The filtrate then undergoes reverse osmosis (RO) to remove dissolved salts and organic compounds, and any remaining viruses. ![]() Microfiltration forms the first step, the flow passing through hollow fibre membranes with a pore-size of 0.1µ – 0.2µ to exclude particles, microbes and certain viruses. The subsequent advanced treatment regime is the same for each plant. Pre-treatment at the Bundamba and Luggage Point consists of flocculation, with Gibson Island using high-rate Actiflo clarification to reduce the soluble phosphorus. The three AWTPs at Bundamba, Luggage Point and Gibson Island form the core of the project, each taking wastewater that has been treated to secondary level at nearby WWTPs. This initiative also added desalinated and purified recycled water into the supply system, with the Western Corridor Recycled Water Project having the capacity to contribute up to a total of some 232mld. The South East Queensland Water Grid was devised in response, aiming to connect the area’s dams, reservoirs and other storage systems, to allow water to be moved to meet local needs, enabling the state government to manage growth in the region. With concerns over climate change mounting and Australia seemingly destined to become increasingly drier, securing alternative sources assumed a growing importance. The project was developed against a background of a protracted record drought affecting South East Queensland, which had a significant effect on the region’s water supply. Western Corridor recycled water project background ![]() The cost of the project was met by a $2bn contribution from the Queensland Government and $408m from the Australian Government via the Water Smart Australia Programme. To accommodate the scale of the work, five project alliances were formed to deliver the main elements, using the expertise of some of the world’s leading names in engineering, construction, and water and wastewater management. “The finished project will have a supply capacity of just over 230mld of water.” The principal aim of the work was to help ensure the security of South East Queensland’s water supply by reducing the dependency on sources vulnerable to climate change and make purified recycled water available to power stations, industry and agriculture and for indirect potable reuse.ĭelivering the project involved a phased construction programme to build three new advanced water treatment plants (AWTPs), eight storage tanks, nine pumping stations and a large-diameter pipeline of more than 200km in length. In April 2008, the new Bundamba treatment plant won the Global Water Intelligence water project of the year award. It is the largest undertaking of its kind in Australia and is ranked as the world’s third-biggest recycled water scheme to date.įorming a key element in the $9bn South East Queensland Water Grid – the largest urban drought initiative in Australia – the project has a supply capacity of just over 230 megalitres a day (mld). The $2.5bn (AUS) Western Corridor Recycled Water Project was completed in December 2008. Pipeline being prepared for horizontal directional drilling beneath the Brisbane River.Ĭonstruction and operations director Gus Atmeh at Bundamba advanced water treatment plant. ![]() Bundamba Advanced Water Treatment Plant received Global Water Intelligence's water project of the year award in 2008. ![]()
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