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, aldose, ethers, and phenols. It is called green water treatment. The removal of COD mainly relies on the oxidation reaction on the anode surface, which directly degrades organic matter on the anode surface. The anode potential must be higher than the decomposition potential of organic matter. The titanium anode produced by our company can withstand higher current density during oxygen evolution and chlorine evolution electrolysis. It significantly reduces the bath voltage and has a significant energy-saving effect. It does not pollute the medium and improves the purity of the product. After long-term use, the anode active layer can also be repaired and recoated. The titanium substrate can be reused to save precious raw materials.