commissioning of HRSCC/Clarifier :

COMMISSIONING OF HRSCC CLARIFIER:

a. do hydro test of HRSCC/Clarifier tank,clear water tank (and other RCC tanks) for minimum 2-6

    days with water. if any water leak found do pressure grouting in respective areas.

b. check HRSCC/Clarifer mechanism

    (Floculater and Scrapper) operation for smoothness. RCC to ba properly chipped if any obstacles   

    during HRSCC/Clarifier mechanism drive operation. check the speed of mechanism and cross 

    check with vendor recommendations. No load trial of HRSCC/Clarifier mechanism scrapper to be 

    tested and trail run of 8 hrs before filing water. Fill the raw water tank by using bore well/river

    water supply pump.

c. Ensure power supply is available for all the pumps, instruments & equipments in our plant.

d. check the suction and delivery valve of raw water pump. 

e. start coagulant and polymer dosing pump and set the stroke and flow required as per the jar test 

    ppm.

f. start the Raw water transfer pump and set the flow by adjusting its delivery valve.

g. start the Flash mixer agitator, Scrapper and impeller in HRSCC/Clarifier mechanism once the level

    get filled up to agitator. ( at least 10% submergence of equipment)

h. check the rising zone water at every one hour. if it is not clear increase the stoke of coagulant and 

    polymer dosing up to desired quality to be achieved.

i. check the turbidity and other parameters in outlet water from HRSCC/Clarifier mechanism. Adjust 

   cogulant rate.

j. once the water gets filled in clear water start NaOCl dosing pump and maintain Free Residual 

   Chlorine (FRC)  of 0.2-0.4 ppm.