water treatment equipment of brine electrolysis system for water plant

Sodium hypochlorite generator summary:

1.Sodium hypochlorite generation

Sodium hypochlorite generation system is producing sodium hypochlorite through brine electrolysis, and the whole system is a combination of Softening unit, Filtration unit, Salt dissolving unit, Online proportioning unit, electrolytic unit, rectifier power supply, automatic control systems, storage and dosing unit, etc.

2. The Applications of sodium hypochlorite disinfection

Sodium hypochlorite, a strong oxidant with strong bactericidal and bleaching power, have been widely used in drinking water disinfection, food processing, industrial or power system recycling water disinfection, sewage treatment and swimming pool water treatment.

Principle of sodium hypochlorite generator

Salt solution contains the several kinds of ions such as Na⁺, H⁺, when electrolysis, under a certain voltage, as a result of the movement of ions in the electrolyte solution and electrode reaction, the conductive effect occurs, then Cl^-, OH^- such as negative ion to the anode, and positive ions such as Na⁺, H⁺ to the cathode, and the corresponding electrode discharge occurs, thus carries on the REDOX reaction, the corresponding material production. The electrode reaction and solution reactions is
Electrode reaction:
anode: 2Cl^- - 2e^- → Cl₂;
cathode: 2H⁺ + 2e^- → H₂;
Solution reaction:
2NaOH + Cl₂ → NaCl + NaClO + H₂O
Overall reaction as follow:
NaCl + H₂O + DC →NaClO + H₂↑