In the initial stages of water treatment (clarification, discoloration, coagulation, sedimentation and filtration) it is possible to remove up to 98% of microorganisms. The rest of them remain active. This is why it is also important to carry out disinfection while purifying surface waters.
Disinfection of drinking water at water treatment plants is possible with the use of sodium hypochlorite, which is prepared locally from sodium salt or saline water in electrolysis containing at least 20 mg/ l of chloride.
Sodium hypochlorite installation and dosing:
saturator;
water softener;
electrolysis;
tanks for storage of saturated sodium chloride and sodium hypochlorite;
exhaust ventilation to remove hydrogen;
dosing pumps of the finished product;
flow measurement and control devices for sodium hypochlorite dosing.
