Single Stage Desalination Systems

Wärtsilä’s Single-Stage Desalination (SSD) unit generates high quality fresh water in an energy efficient way. With a capacity from 8 to 35 t/day, it is ideal for converting seawater for use as drinking or technical water onboard ships or offshore installations. 

The Wärtsilä SSD is a state-of-the-art desalination unit that meets the need of long-voyage seagoing vessels where fresh water cannot be bunkered. It is also applicable in situations where clean water is required for processes. The system uses vacuum distillation to remove salt and other impurities from the seawater and convert it into high quality fresh water (< 2 ppm). The design features simple technology with automated operation for continuous and user-friendly operation. Waste heat from the diesel engine or other heat sources is used to evaporate the seawater and the system’s total electricity consumption is low. 
 
The SSD produces fresh water of the highest quality, simply and reliably. It is easy to operate, requires minimal maintenance. Spare parts are easily accessible, and no special consumables are required. Operating costs are low, and the use of time-consuming manpower is extremely limited. Like all Wärtsilä installations, the SSD is supported by the marine industry’s most extensive global service network.