Frequency for activities in Water system

1.0 OBJECTIVE
To lay down a procedure for defining Pre Determined Frequency for various operational activities in Water system.
2.0 SCOPE
This SOP is applicable to Formulations Units
2.1.0 AREAS
2.1.1 DM plant and UWF. System.
3.0 RESPONSIBILITY
Jr. Technical Officer / Executive –production/ Officer –Production.
4.0 ACCOUNTABILITY
Manager - Production
5.0 PROCEDURE
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.