Reverse Osmosis Plant,
RO Plant, Desalination Plant
Reverse osmosis (RO) is a membrane-technology filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure low TDS water is allowed to pass to the other side.
De- Mineralization Plant, DM Plant
Mineral ions such as cations of sodium, calcium, iron, copper, etc and anions such as chloride, sulphate, nitrate, etc are common ions present in water. Deionization is a physical process which uses specially-manufactured ion exchange resins which provides ion exchange site for the replacement of the mineral salts in water with water forming H+ and OH- ions.
Water Softening Plant, Softener
Water softening is the reduction of the concentration of calcium, magnesium, and certain other metal cations in hard water. These “hardness ions” can cause a variety of undesired effects including galvanic corrosion, interfering with the action of soaps, and the build up of limescale, which can foul plumbing. Conventional water-softening appliances intended for household use depend on an ion-exchange resin in which hardness ions are exchanged for sodium ions. Water softening may be desirable where the source of water is hard.