To provide a quick potable water solution to any location near an ocean.
Developed by a consortium of ACWA Power and RAKA to ease the water shortage in the Western Province of the Kingdom of Saudi Arabia. WETICO was awarded the ten month contract to design and build the 52,000 m3/d barge based desalination plant in August of 2007 which as of today is still the largest offshore desalination plant in the world.
The overall design took into consideration a lot of variables such as raw water characteristics, product water requirements, barge balance issues, area constraints, power supply restrictions and environmental impact.
Each barge comprises 12 first-pass reverse osmosis modules and 4 second-pass modules. The first-pass module operates at a 67 bar pressure and will deliver a 42 percent recovery with a product water total dissolved solids content of 600ppm. The product water is then fed through the second-pass module, which operates at an approximate pressure of 12 bar and will deliver a 90 percent recovery with a total dissolved solids content of just 30ppm.