Kwinana Water Reclamation Plant, Microfiltration and Reverse Osmosis Technology, Australia
Key Data:
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
650m³
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
16,700m³/d
RO permeate TDS
<50mg/L
CO2 removal
Air degassing
Pre-storage dosing
Hypochlorite
Project cost
AU$28.5 million
Project Timeline:
State Water Strategy launched
February 2003
Contract awarded
22 April 2003
Formal inauguration
4 November 2004
Strategic target for treated wastewater reuse
2012
Key Players:
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
