To lay down a procedure for defining Pre Determined Frequency for various operational activities in Water system.
This SOP is applicable to Formulations Units
2.1.1 DM plant and UWF. System.
Jr. Technical Officer / Executive –production/ Officer –Production.
Manager - Production
5.1.0 Frequency Chart
Backwash of sand filter - Daily 5minutes before starting the operation.
Backwash of activated carbon filter - Daily 5minutes before starting the operation.
Sanitization of purified water supply loop - Once in 7 days.
Sanitation of UWF by hydrogen peroxide - Once in 15 days.
Regeneration of Cation , Anion and Mixed bed - If the conductivity of Anion outlet water exceeds 20 µs / cm and conductivity of mixed bed outlet water exceeds 1 µs / cm.
Changing of 5mm filter in DM Plant - Once in 6 months.
Changing of 3mm filter in purified water plant - Once in 6 months or pressure exceeds 0.5 kg / cm².
Defouling treatment of cation and anion resines - Once in 6 months/ when choked.
Changing of air vent filters in UWF room - Once in a year
Cleaning of UWF membrane - Once in a year.
Changing of DM plant resines - 3 years or when the out put reduces than the design.
Changing of UWF membrane - When the Microbial counts are high even after chemical sanitization.
Chemical sanitization of purified water supply loop - When the Microbial counts are high even after hot water sanitization.