Perth Groundwater Replenishment Plans Doubled
Published on by Water Network Research, Official research team of The Water Network in Business
Joint Venture Known As CHT JV Alliance Selected to Undertake the Country'sFirst Full-scale Groundwater Replenishment Project
A 50/50 joint venture between Thiess and CH2M Hill, known as CHT JV Alliance, has been selected to undertake the country's first full-scale groundwater replenishment project in alliance with Western Australia's Water Corporation.
The award follows a three-year groundwater replenishment trial at the Beenyup Wastewater Treatment Plant (WWTP) site at Craigie, in Perth's northern suburbs.
The project was originally proposed to develop the full-scale, 74,712 m3/d (19.7 MGD) facility in three separate stages.
However, a competitive tendering process resulted in strong competition, and the State Government said that it was able to get the first two planned stages—with a combined capacity of 37,356 m3/d (9.9 MGD)—built for an estimated cost of A$124.6 million ($115.6 million), saving A$24 million ($22.3 million) in the process.
The new advanced water recycling plant (AWRP) will use secondary effluent from the Beenyup Wastewater Treatment Plant (WWTP) as feedwater for a UF, RO and UF disinfection treatment scheme to produce water that meets or exceeds the country's drinking water standards. The high-quality AWRP water will then be injected into local aquifers to boost Perth's drinking water supplies.
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