Sop for Sodium Meta Bi-Sulphate solution preparation (SMBS).

This Document describes (Standard Operating procedure) SOP for Sodium Meta Bi-Sulphate solution preparation (SMBS). SMBS solution used in water plant for dechlorination purpose i.e. It is reducing or eliminating chlorine levels in water. Chlorine is commonly used as a disinfectant in water.

SOP for Sodium Meta Bi-Sulphate solution preparation.

(SMBS)

I. Purpose & Scope:

• The Purpose of this SOP is to lay down the procedure for Sodium Meta Bi-Sulphate solution preparation (SMBS)
• This procedure is applicable Engineering Department personnel for Sodium Meta Bi-Sulphate  solution preparation (SMBS).

II. Responsibilities:

• All Engineering personnel shall be responsible to follow and implement this SOP.

III. Introduction and Procedural Part:

Sodium Meta Bi-Sulphite Dosing System (Dosage of 4 PPM for Dechlorination):

• Ensure that Sodium metabisulphite tank is cleaned with Purified water.
• Prepare sodium metabisulphite solution in the tank.
• Clean the dosing tank.
• Suspended matter should not be present.
• Suction float of the dosing pump should be properly immersed in the dosing solution.
• For proper dosage, check no air is locked in the suction & discharge side of dosing tube.
• Add 54 gms. of sodium metabisulphite of LR grade in the tank & add 20 liter. of RO permeate water.
• The flow rate of the dosing pump should be maintained 30 strokes per minute.

Solution calculation:

• Sample should be taken after cartridge filter sampling point since it provides proper mixing of sodium metabisulphite in the RO feed water Dechlorination.
• Free chlorine should be nil.
• All data shall be monitored & logged in Annexure I

IV: Annexure I:

Annexure I : Sodium Meta Bi-Sulphite solution preparation log (SMBS)

Annexure –I   

Sodium Meta Bi-Sulphite solution preparation log (SMBS)

Frequency: As and When Required

Checked By ________________Reviewed By: _______________

Engineering                                 QA