Abstract
Contamination of drinking water supplies by the harmful chemicals increases sharply, and it is important to remove harmful chemicals in drinking water supplies for keeping our health. The purpose of this study was to review the reverse osmosis membrane proesses available for removing harmful chemicals, such as agricultural chemicals, nitrates and trihalomethanes in ground water and river water, to acceptable limits for consumers.
Reverse osmosis membrane processes are used practically in the U.S.A. for the removal of nitrates and the prevent of trihalomethane formation by the chlorine applied for disinfection of drinking water. Reverse osmosis membrane process is one of the useful methods for making the safe drinking water.