BWMS Electrolytic Disinfection Unit

The electrolytic unit intakes a small part of filtrated seawater to electrolyzer and generates oxidant (mainly sodium hypochlorite) and by-product hydrogen. The electrolyzed water contains sodium hypochlorite solution is injected back into the main ballast pipe with an oxidant dosing pump or unit. The oxidant reacts in the main ballast pipe to provide effective disinfection. The by-product hydrogen is separated by the cyclone and then sufficiently diluted with air by the blower to a safe level before it is released to open air.

Normally, the electrolytic unit takes seawater from AFU outlet or main seawater pipe with a seawater booster pump; for fresh water voyage treatment, APT or other seawater reserving tank will be taken to supply seawater for the electrolytic unit

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