Desalination

As the global need for freshwater increases, desalination—the process of turning saline water into freshwater—is becoming more important. Energy Recovery’s solutions lower the energy consumption of seawater reverse osmosis (SWRO), making it more efficient and cost-effective.

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How it works

The challenge

Droughts, extreme weather, and growing populations are driving many water-stressed regions to look for diversified and sustainable water production strategies to build a secure water future. SWRO desalination can reliably produce clean water by physically filtering it through a membrane. Although this process can be energy intensive, energy recovery devices significantly lower the energy consumption of water production, making it cost-effective while reducing emissions.

35,000

Amount of PX devices deployed worldwide

Years that we’ve been leading the way in energy recovery

$6.3B

Approximate energy savings for our customers each year

100

Number of countries our devices are installed in

The Solution

98%

Peak efficiency of PX devices

Industry-leading 30-year design life with no scheduled maintenance

60%

Potential energy reduction in SWRO desalination facilities

22.5M

Metric tons of carbon emissions avoided by our customers annually

Without an Energy Recovery Device (ERD), a high-pressure pump pushes water into a reverse osmosis system where there is rejected seawater that ends up being wasted energy. Equipped with a PX^®Pressure Exchanger^®, the rejected water is fed back into an ERD that recovers energy and then powers a circulation pump that reduces energy demand on the high-pressure pump—creating a desalination process that’s both optimized and maximizes savings.

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