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Kwinana Water Reclamation Plant

Plant type

Dual membrane microfiltration / RO

Inflow

Effluent from Woodman Point WWTP

Feed water average TDS

850mg/L

Start up capacity

8,700m³/d

Initial maximum capacity

16,700m³/d

Design upgradeable maximum

26,700m³/d

Contact tank volume

280m³

Inflow screen size

2mm

Inflow chemical dosing

Sodium hypochlorite and sulphuric acid

Microfiltration system

Initially 288 modules per membrane filtration cell, expandable to 16,700m³/d with additional membrane modules; further cells planned to meet final future capacity.

Microfilter recovery

90%

Microfiltration pore size

0.2 micron

Microfilter filtrate quality

SDI <3

Effluent TDS (average)

350mg/L

Total coliforms

<1/100mL

Reverse osmosis feed tank volume

650m&sup3;

RO system

2-stage process using 4 treatment trains configured in 18:8 arrays; future expansion to 20:10 plus 2 additional trains

Overall RO recovery

80%

First stage RO recovery

55% as permeate

Second stage RO recovery

25% from concentrated waste stream

RO permeate flow

16,700m&sup3;/d

RO permeate TDS

<50mg/L

CO<sub>2</sub> removal

Air degassing

Pre-storage dosing

Hypochlorite

Project cost

AU$28.5 million

State Water Strategy launched

February 2003

Contract awarded

22 April 2003

Formal inauguration

4 November 2004

Strategic target for treated wastewater reuse

2012

Plant owner / sponsor

Water Corporation of Western Australia

Main contractor

Veolia Water Systems Australia / John Holland joint venture

CMF-S / membrane system

Memcor (a division of the Veolia Environment group)

Process instrumentation

Endress & Hauser Australia

Pipe fabrication and installation

Alltype Engineering Services

Chemical resistant coatings

Savcor Finn

Key industrial customers

BP, CSBP, Edison Mission and the planned Hismelt Rio Tinto smelting plant
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