Generalities
For geographical areas that have either no or limited surface water or groundwater, SWRO systems are an increasingly common method of desalination, because of their relatively low energy consumption. In recent years energy consumption has dropped to less than 3 kWh / m3, with the development of more efficient energy recovery devices and improved membrane materials. According to the latest studies of International Desalination Association SWRO method was used in 66% of installed desalination capacity in the world.
Similar to BWRO systems, our SWRO units are also skid mounted type for standard models and treat raw sea water with salinity ranging from 15.000 ppm to 45.000 ppm. Pressuriz- ing unit of the systems generally consist of ( but not limited to ) a high pressure pump coupled to a booster pump and a pressure exchanger for energy recovery.
Operational pressure generally stays under 70 bar. In most cases, a proper pre-treatment to avoid membrane fouling is placed before the systems.