Introduction to Chlorination
Chlorination is the use of chlorine gas, sodium hypochlorite or calcium hypochlorite to disinfect water.
Similar but distinct disinfectants include chloramine and chlorine dioxide.
Chlorine can be sourced:
- As compressed/liquefied Cl2 gas in cylinders or drums
- As a liquid aqueous sodium hypochlorite solution, either produced by on site electrolysis of brine, or commercially produced offsite
- In solid calcium hypochlorite form. Normally sold in tablet or powder form
Whatever the source of the chlorine it takes exactly the same form once dissolved in water:
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