From a chemical point of view, hydrolysis is a common and ubiquitous chemical reaction process. It can be said that most compounds, Biochemical treatment system Under certain conditions, reaction will occur after contacting with water. When we discuss hydrolysis reaction, we are talking about the reaction between compound and water, that is, the electronic distribution in compound molecule and the reaction between its charge and water. The reaction of most organic compounds is the formation and fracture of covalent bonds. The hydrolysis reaction can cause the covalent bond to change and break, even if the molecular structure and morphology of the compound change. The study of hydrolysis reaction is to study the route of hydrolysis of compounds, reaction products, and factors affecting the degree and rate of hydrolysis.

Biochemical (biochemical) treatment method in sewage treatment process is the main method for treating organic sewage. Hydrolysis process is one of the newly developed processes. Therefore, the hydrolysis process here is a biochemical reaction different from chemical reaction.