What Is SWRO?

Seawater reverse osmosis (SWRO) is a desalination process that produces potable water by forcing seawater against a semi-permeable membrane, producing pure water on one side and concentrated brine on the other. The brine returns to the sea, while the potable water is stored or distributed for human consumption.

High operating pressures, anywhere from 800 to 1,100 pounds per square inch (psi), are required to separate the fresh drinking water (potable water) from the brine. These high pressures, and the energy required to obtain them, has historically limited the deployment of seawater reverse osmosis to regions where power is inexpensive and abundant.

Click here to learn more about how ERI’s PX™ devices are improving SWRO energy efficiencies