Perth Seawater Desalination Plant, Seawater Reverse Osmosis (SWRO), Kwinana, Australia
Key Data:
Plant type
SWRO
Capacity
140,000m³/d
Design expansion capacity
250,000m³/d
Annual output
45GL
Population supplied
1.5 million
parameters
Seawater temperature
16°C to 24°C
Salinity
35,000–37,000mg/l
Salinity increase in Cockburn Sound
<1%
Environmental monitoring required
TDS, temperature, DO, sediment habitat
Pipeline
26km, 1,200mm
Power demand
24MW
Process energy requirement
4.0k–6.0kWh/kl
Power supply
Renewable (Emu Downs wind farm)
Wind farm
80MW; 48 wind turbines
Contract types
Design and build, operate and maintain
Contract period
25 years
Anticipated water cost
AUS$1.17/kl
Annual running costs
< AUS$20m
Project cost
AUS$387m
Project Timeline:
Environmental protection statement
September 2002
First assessment
October 2002
Ministerial statement
May 2003
Second assessment
May 2004
Environmental approval and commitment to build announced
July 2004
Design competition starts between pre-qualified consortia
September 2004
Survey and consultation for potential pipeline routes
September / October 2004
Pipeline route selected
November 2004
Bids received
February 2005
Contract for plant awarded
April 2005
Plant construction began
April 2005
Pumping station construction began
May 2005
Environmental approval for pipeline route
June 2005
Pipeline construction began
September 2005
Construction completion
August 2006
Lime systems installed
August 2006
Plant commissioning
September 2006
Pumping station completed
October 2006
Official opening
November 2006
Key Players:
Client
Water Corporation of Western Australia
Main contractor
Multiplex-Degremont Joint Venture
Mechanical installation works
McConnell Dowell Constructors
Operator
Degrémont /Water Corporation alliance
Energy suppliers
Western Power
Wind farm developers
Stanwell Corporation and Griffin Energy
Lime systems
Transmin
