Electro-Chlorination is a process that produces dilute sodium hypochlorite (bleach) and hydrogen gas by applying an electrical current to saltwater. This process is used for disinfecting water and making it safe for human consumption and other applications. Here are the key points about electrochlorination:
Electrolysis of saltwater: Saltwater is passed through an electrolytic cell with electrodes, where a low voltage DC current is applied.
Chlorine production: At the anode, chloride ions are oxidized to produce chlorine.
Sodium hypochlorite formation: The liberated chlorine reacts with sodium hydroxide to produce sodium hypochlorite.
Hydrogen gas by-product: Hydrogen gas is released at the cathode and separated from the sodium hypochlorite solution due to its low density.
NaCl + H2O + ENERGY → NaOCl + H2
Drinking water treatment: Electro-Chlorination is used to disinfect drinking water without producing environmental toxins.
Swimming pools: It is used to chlorinate pool water, killing harmful microorganisms and providing a safe environment for swimmers.
Non-hazardous and environmentally friendly
No toxic by-products or sludge
No handling of hazardous chemicals like chlorine gas
On-site generation and on-demand production
Economical and efficient
Hydrogen gas is highly flammable and explosive, requiring safe management and dispersal.
Risk assessments are necessary for the safe operation of electrochlorination systems.
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