With the development of industry, the discharge of organic wastewater is increasing day by day, especially the high-concentration wastewater discharged by the chemical, food, pesticide and pharmaceutical industries. It has high chromaticity and toxicity, contains a large number of biodegradable components, and seriously pollutes rivers, lakes and seas. The new technology of electrolytic water treatment has no need to add chemicals, the equipment is small in size, occupies a small area, and does not produce secondary pollution. It has been used to treat wastewater containing organic pollution such as hydrocarbons, alcohols, aldodes, ethers, and phenols. It is called green water treatment. Removal of COD mainly relies on the oxidation reaction on the anode surface, which directly oxidizes and degrades organic matter on the anode surface. The anode potential must be higher than the decomposition potential of the organic matter. The titanium anode produced by our company can withstand higher current density during oxygen evolution and chlorine evolution electrolysis, significantly reduce bath voltage, and have significant energy-saving effect; it does not pollute the medium and improves product purity; after long-term use, after the anode active layer is deactivated, it can also be repaired and recoated, and the titanium substrate can be reused, which can save precious raw materials.