Californian company Energy Recovery Inc. (ERI) will provide its pressure exchanger technology to Spanish firm ACCIONA Agua for the 100,000 m3/day seawater reverse osmosis (SWRO) desalination plant in Al Jubail, a city in the Eastern province of Saudi Arabia.
Saudi Arabia's Marafiq Power & Water Utility Company awarded ACCIONA Agua a contract to design, construct, and bring into service a desalination plant called SWRO-4 by the end of 2014.
Construction began in 2012 on the mega-plant, which will use reverse osmosis (RO) to desalinate water for potable and industrial uses.
Situated along the coast of the Persian Gulf, Al Jubail has intense water needs, as does the rest of the country with more than 50% of the Kingdom's drinking water coming from desalination.
ERI’s PX Pressure Exchanger devices work in SWRO by recovering energy from the membrane reject stream and feeding it back into the process.
The company claimed that over 116 million kilowatt-hours (kWh) will be saved at the Al Jubail plant using the devices.
Speaking to WWi magazine as part of exclusive interview for the August-September edition, CEO Tom Rooney said payback on the PX devices could be as little as three months, based on the global average electricity cost of $0.10 per kWh.
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