Seawater desalination equipment is an industrial device that converts seawater into freshwater, primarily employing reverse osmosis and distillation technologies. Reverse osmosis uses high pressure to drive seawater through a semi-permeable membrane for highly efficient desalination, typically achieving a desalination rate of over 99%. Distillation utilizes thermal energy for multi-effect evaporation. This equipment is widely used in ships, islands, drilling platforms, and emergency water supply systems.
Typical equipment includes a pretreatment system, a high-pressure pump, reverse osmosis membrane modules, and an energy recovery device. The core components mostly utilize reverse osmosis membranes, reducing the salinity of the produced water from 36,000 mg/L to below 200 mg/L, meeting national drinking water standards. Equipment types include skid-mounted, containerized, and marine-specific models, featuring automated control, multiple pressure protections, and 24-hour operation capability.