Friday, December 16, 2005


Under desalination, water flows through a membrane having salty side at one end and unsalted side at other end. Only giving pressure to can do this process the water at the membranes salty side. This is for two reasons. First, removal of natural osmotic pressure and second one is creating extra pressure on the water column then only water is pushed through the membrane.

The Requirement of pressure for desalination of seawater is 50-60 bars. Reverse osmosis a specific process, which is proved. Electro dialysis, distillation and ion exchange are some of the techniques are Used for water desalination.