Conference Papers | 2009 Conference Papers

IN-HOUSE VALIDATION OF THE AURORA CLASS A RECYCLED WATER PLANT

Chris Brace, Manager Treatment Plant Planning, Yarra Valley Water
Sabina Fahrner, Engineer Treatment Plant Planning, Yarra Valley Water

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ABSTRACT

Yarra Valley Water (YVW) commenced operation of the Aurora Class A Recycled Water Treatment Plant (RWTP) in March 2009. The plant produces Class A recycled water fit for dual pipe recycling in accordance with the Victorian Environment Protection Authority (EPA) and the Department of Human Services (DHS) requirements. The validation assessment of the Aurora RWTP’s process train was completed in-house by YVW's engineering staff. This assessment confirmed that the plant provides the required 7 Log reduction of viruses and 6 Log reduction of protozoans from the plant’s feed water. This paper details YVW's experiences relating to the validation assessment including key challenges, the pros and cons of undertaking the validation assessment work in-house, the value of existing validation data and future operation within the current recycled water management regulatory frameworks.

KEY WORDS

Class A, Recycled water, Validation, Aurora, Ultrafiltration, Ultraviolet Disinfection, Dual pipe.