Reverse osmosis is a special kind of process that works when water, which has a high concentration of salt in it, is pushed through a semi-permeable membrane layer. The force of pressure depends upon the content of salt in the water. The dirty or contaminated particles and dissolved salts are left behind by the barrier and allow the clean water to drain down into the tank. This water that comes out demineralized is called permeate water, and the water that holds the contaminants is called the reject stream. It is a highly purified water used for many purposes such as in Ro Plant Manufacturer in India and in many other applications and is scientifically approved and tested.