Raw water is chlorinated or Ozonated to oxidize the organic impurities (kill bacteria and virus). This water is passed through Multi Media Filter with the help of Feed pump of suitable capacity to remove suspended impurities followed by Activated Carbon Filter to remove excess chlorine (dechlorination), odor, color and turbidity due to colloidally suspended impurities and organic impurities.
Dechlorinated water is then dosed with Antiscalant Solution to avoid scale formation on the membrane or passed through Softener to remove hardness. Softened water is further passed through 10-micron cartridge filter to remove micron particles to avoid clogging of the RO membrane and to improve the silt density index. Water further passed through RO Unit which is complete with High Pressure Pump, Membranes with Pressure tubes, Electrical control panel and wet panel, piping with valves and all the required accessories viz., pressure switch, solenoid valve etc. Reverse Osmosis unit will reduce the dissolved Salts up to 95% of the TDS. Treated water from RO unit will be stored into SS tank.
This treated water is then passed through 0.2 micron cartridge filter before it is taken for the filling. Ozonator unit producing ozone gas is installed in series at the outlet of UV System to provide the residual effect of ozone to the water.