Plant tank work starts

Cockburn Gazette - - STREETWATC­H -

WORK to ex­pand the Wood­man Point Wastewater Treat­ment Plant reached a mile­stone late last month, with the project’s first ma­jor con­crete pour com­pleted.

Sixty trucks spent eight hours pour­ing 360 cu­bic me­tres of con­crete.

Wa­ter Cor­po­ra­tion as­set de­liv­ery man­ager Mark Leather­sich said it will form the base of one of eight new tanks be­ing built at the plant.

“The tanks are sec­ondary sed­i­men­ta­tion tanks and are a vi­tal part of the wastewater treat­ment process,” he said.

“The tanks are where treated wastewater un­der­goes fur­ther set­tle­ment and clar­i­fi­ca­tion, which then pro­duces fi­nal treated wastewater.”

The state’s largest wastewater treat­ment plant is un­der­go­ing a $196 mil­lion ex­pan­sion to in­crease its ca­pac­ity to 180 mil­lion litres a day.

The up­grades are be­ing un­der­taken by Hen­der­son firm Civmec and Black and Veatch Aus­tralia.

They in­clude con­struc­tion of a new grit re­moval fa­cil­ity, a new flow dis­tri­bu­tion chan­nel, ex­pan­sion of ex­ist­ing odour col­lec­tion and treat­ment sys­tems, new sed­i­men­ta­tion tanks and con­ver­sion of the ex­ist­ing batch re­ac­tor to a per­ma­nent aeration fa­cil­ity.

When com­pleted in late 2019, the plant will treat wastewater from 900,000 peo­ple south of the river.

Con­crete pour has started at the Wood­man Point Waste­water Treat­ment Plant.

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