Electrochemical water treatment is an extension of the human electrical industrial revolution in water treatment. It involves the conversion of electrical energy into chemical energy to synthesize specific water treatment agents or directly treat specific pollutants in water with electrical energy. The electrochemical water treatment technology chain is concise, the processing process is direct, generally requiring no additional chemical agents, and can be operated continuously. Environmentally friendly and low-carbon, electrochemical water treatment represents the ultimate form of water treatment technology currently.