Recently, we received an inquiry from a customer indirectly servicing the food industry. Their water is used for washing and must be clean and disinfected. They were looking for a disinfection method that would minimize their safety risk on site. Filtration+UV was chosen as the primary method although they realized it would not be sufficient on its own as the reticulation pipework would require a chemical residual of either chlorine (hypochlorite) to prevent biofilm growth.
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This is how the customer perceived the various alternatives:
The Electricide® HGB chlorine generator is an electrochemical system for converting sodium chloride (salt) into chlorine. Electricide-B1 is a purified brine precursor that is fed into the HGB generator at the anode side of the electrolytic cell where chloride ion is oxidised to chlorine. Chlorine combines with the hydroxide formed at the cathode to make sodium hypochlorite solution at 5-25 g/L (as NaOCl). The generator is skid mount and easy to install on site. Electricide-B1 chemical is available ex stock from Dioxide Pacific.
Anode (oxidation): 2Cl Cl2 + 2e
Cathode (reduction): 2H2O + 2e H2 + 2OH
+ (combined) 2Cl + 2H2O Cl2 + H2 + 2OH
Chlorine reacts with caustic catholyte to form sodium hypochlorite and salt.
For more information, please visit electrolytic sodium hypochlorite generator.
Cl2 + 2NaOH NaCl + NaOCl
The Electricide® HGB generators are available for purchase or rental. Rental can include maintenance.
Electricide-B1 chemical is available in IBCs (totes), 200L (55 gal) or 15L (5 gal) drums.
Dioxide Pacific can install and commission the system if desired. Installation is a simple process for mechanical and electrical technicians.
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