Jaffna desalination plant

The region of Jaffna in Sri Lanka is facing a water shortage due to limited surface water sources and the degradation of groundwater from excessive extraction and the use of chemicals and pesticides. Therefore, the National Water Supply and Drainage Board sought an alternative water source to increase supply and ensure safe drinking water for the inhabitants of Jaffna, one of the most densely populated cities in Sri Lanka and close to the sea.

Thus, in 2021, the NWSDB awarded SUEZ the contract to design, build and operate the first seawater desalination plant in Sri Lanka, with a capacity of 24,000 m³/day, to supply drinking water to the inhabitants of the Jaffna region.

design

• Sea water pumping stationequipped with submersible pumps made of Super Duplex, ensuring their durability and reliability.
• Pretreatment stage, compact and simple, to increase the lifespan of reverse osmosis membranes through the use of Seaclean® dual media pressurized filters, followed by cartridge filters for optimal filtration.
• Reverse osmosis thanks to hybrid membranes and energy recovery devices, favoring low energy consumption while maintaining high efficiency.
• Remineralization process with lime, CO₂ and gaseous chlorine.
• Reservoir of 10,000 m³ of water per day.