Ozone has a strong oxidizing power and is currently one of the known oxidants. The use of ozone in sewage treatment is extensive, and its principle is to use the strong oxidation of ozone. After ozone decomposition, decomposition into oxygen, no secondary pollution. Whether in drinking water or wastewater, ozone reacts with simple or complex organic matter to form some of the same products: acetaldehydes, carboxylic acids, aliphatic, aromatic, and other oxides. These products are easily biodegradable and have no obvious toxicity. Ozone can not only oxidize inorganic substances in water, but also oxidize organic matter that is difficult to biodegrade. There are two ways of ozonation reaction: First, ozone directly participates in the reaction through nucleophilic or electrophilic action; The second is that ozone reacts with pollutants through active free radicals, mainly ·OH, under the action of alkali and other factors.

Ozone can not only oxidize inorganic substances in water, but also oxidize organic matter that is difficult to biodegrade. There are two ways of ozonation reaction: First, ozone directly participates in the reaction through nucleophilic or electrophilic action; The second is that ozone reacts with pollutants through active free radicals, mainly ·OH, under the action of alkali and other factors.

Ozone can be prepared by silent discharge at 5~25kv AC voltage with dry oxygen. Therefore, it is necessary to equip the oxygen generator in the sewage treatment industry to provide stable, pure and dry oxygen to the ozone generator.