Automatic Onsite Sodium Hypochlorite Plant Electrolysis Machine for Naclo Solution

About sodium hypochlorite generation

On-site sodium hypochlorite generation systems operate by electrolyzing a brine solution. The systems produce sodium hypochlorite onsite and on demand, at a cost that is significantly lower than purchased hypochlorite. Unlike purchased hypochlorite, the production on demand means that the hypochlorite does not degrade, subsequently there is no reduction of product strength. The Geemblue On-site Chlorination System product line is designed to accommodate applications ranging from potable water disinfection and leisure to marine and off-shore.

Principle:

Electrochlorination uses electricity to convert SALT + WATER (brine) into a mixed oxidant solution of sodium hypochlorite and hydrogen peroxide.

Evenly spaced titanium electrodes are placed in a 3% brine solution (NaCl + H2O). When a DC current is applied to the electrodes the brine acts as a conductor between the positive and negative poles. The resulting electrochemical reactions convert the brine into the sodium hypochlorite based mixed oxidant solution. The electrode reaction and solution reactions is

Electrode reaction:

at the anode: 2Cl- - 2e → Cl2；
at the cathode: 2H⁺ + 2e → H₂；
Solution reaction:

2NaOH + Cl₂ → NaCl + NaClO + H₂O

Overall reaction as follow:

NaCl + H₂O + DC →NaClO + H₂↑

Why choose onsite sodium hypochlorite generator

1. Safety

Safe Raw Material: only salt and water required;

Safe Production: the concentration of NaClO less than 1% which is classified as a non-hazardous chemical.

2. Low running cost

To produce 1 kg available chlorine, only cost 3.5 kg of salt, 4 kwh of energy.

3. Onsite generation and dosing

No chemical transportation and storage, it can be run and stop in any time.

4. Easy Operation

Full computer program and central control by PLC, the staff can operate after simple training.

Product components

Electrolytic cell
Geemblue series unique electrolytic cell design optimizes salt and power consumption while providing easy access to the cell components for maintenance. A clear organic glass cell body allows for visual inspection, and the improved end-connection cap design minimizes the potential for leaks.

Electrode

TA1 pure titanium electrode, with ruthenium &iridium oxide coating which ensure over 5 years coating life, over 18 years base material, reduce the chlorine evolution potential and electricity consumption.

Brine Proportioning Unit

To proportioning saturated brine with softened water into 2.5~3% diluted brine

All we selected are international brand like “MILTONROY / PROMINENT / SEKO / GRUNDFOS” Pumps which ensure stable performance and long service life.

Siemens PLC Smart Control Center

Electrolytic cell

Electrode

Brine Proportioning Unit

Siemens PLC Smart Control Center