Water Engineers are specialists in Electrochlorination (salt chlorination) processes where common salt (Sodium Chloride) is converted to low strength (up to 1%) liquid chlorine by electrolysis.
The actual reactions are complex, but the key reaction can be represented by the following equation:
NaCl + H2O + energy ---> NaOCl + H2
Salt and power are the raw materials for this process and the availability and source of the salt often determines the most appropriate Electrochlorinator design for a particular application.
SEA WATER OR BRACKISH WATER
In certain applications sea or brackish water (> 0.5% salinity) can be used as a direct feed to the Electrochlorinator. While Calcium, Magnesium and other impurities need to be considered, the benefit of this process is very low operating costs.
This system is well suited to sea water swimming pools, sea water cooled Power Stations, Refineries and Industrial processes and some wastewater applications.