Mr.Murali kochukrishnan. The ...

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Mr.Murali kochukrishnan.

The Best possible method to be used to reduce the TDS is ULTRA FILTRATION technique followed by REVERSE OSMOSIS.


Ultra filtration is one of a low pressure membrane filtration to selectively remove suspended and colloidal particles up to a level of 0.001 micron in size. UF is generally used as a  pre-treatment to RO plants.

 Reverse osmosis is an advanced technique, which has the ability to separate smallest of the particles, molecules and ions. Reverse osmosis supplements conventional techniques; it takes up where the conventional methods are unable to show satisfactory effects. R.O. is especially suitable for areas with high level of Total Dissolved Solids (T.D.S.) and Hardness. R.O. makes saline and brackish water palatable and tastier by reducing TDS and hardness. R.O. also makes the water both chemically and microbiologically safe by reducing Pesticides, Fluoride, hazardous metals contaminants like Lead, mercury, Arsenic etc. and eliminates water borne disease-causing micro-organisms.

 An R.O. water purification device is equipped with a Membrane filtration module having very fine pore size of 0.0001 micron. Raw water is pushed under a high pressure through this membrane filter. The output water that finally comes through the membrane filter is free from Total Dissolved Solids, Hardness, Micro-organisms and chemical contaminants.

 In case of R.O., pure water is extracted from the impure supply water. R.O. produces 1 liter of purified water from 3 liters of raw impure water. Two liters of waste water is rejected . This waste water can be utilized for wiping the floor, car wash or watering the plants.