The operating principle of electrolytic water treatment is transforming the electrical energy to chemical energy by electrolytic process. The oxidation reduction reaction happens nearby electrode in electrolytic cell so that the waste water is purified.
This water treatment method includes direct oxidation reduction reaction on electrode and indirect oxidation reaction reduction between the chemical product generated nearby electrode and the product in water, electric flotation (by tiny bubbles generated in the electrolysis process floating) and so on.
In the anode region, the organic in waste water which is hardly to degrade and reductive inorganic occur oxidation reaction when anode is impressed by current may oxidize to harmless substances.
In the cathode region, the toxic metal ions are reduced to metal directly or may change the toxic high valence metal ion into low toxic metal ion by reductions of cathode.