To lay down a standard operating procedure for pressure quartz filter.
3.0 AREA OF OPERATION
Operator/Maintenance Supervisor concerned.
6.0 NORMAL OPERATION
Put ON Green push button of raw material pump. Open valves 1 & 2, get filtered water from the plant.
7.0 AIR SCOURING
a) Open valves V6 and V5 to loosen the accumulated dirt from the filter media. This operation is carried out for 1.5 to 3.0 minutes at the rate 2 m_3_/hr. at 0.35 kg/cm_2” pressure.
8.0 BACK WASHING OPERATION
8.1 Close valves 1 & 2 and open valves 3 & 4 to remove accumulated dirt and clean filter bed till clear water comes out in the drain. It will take about 5 minutes.
8.2 Back wash the filter after every week in running of the plant.
9.0 REVIEW DATE
After 2 years or when procedure is changed.