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Plant Upgrade Minimizes Wastewater Discharge into Ocean, Maximizes Production of Recycled Water

Treatment Plant Tertiary

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Project Name
Eastern Treatment Plant Tertiary Upgrade
Location
Melbourne, Victoria, Australia
Client
Melbourne Water Corporation

Melbourne Water Corporation鈥檚 Eastern Treatment Plant (ETP) processes 40 percent of Melbourne鈥檚 wastewater each day and serves 1.6 million people. It is the second-largest wastewater treatment plant in Australia and the largest activated sludge plant in the Southern Hemisphere.

The ETP produced chlorinated secondary effluent, which was discharged via a 56-km pipeline into the ocean. The discharge point at Boags Rocks was through a nearshore outfall, and the discharge was apparent to beach users and surfers.

Class A Recycled Water

In 2006, the Victorian Government announced that the ETP-treated effluent discharge was to be upgraded to reduce its environmental impact. The Eastern Tertiary Alliance (ETA), including Melbourne Water and 日韩福利 在线 & Veatch, was subsequently formed to deliver the plant upgrade.

日韩福利 在线 & Veatch selected a process train of ozonation, media filtration, ultraviolet irradiation and chlorination that provided significant improvements to the quality of discharge into the environment.

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