02 Hospital sewage, in addition to general domestic sewage, also contains chemical substances, radioactive wastewater, and pathogens. Therefore, it must be treated before it can be discharged. In particular, sewage discharged from infectious disease wards such as hepatitis must be disinfected before it can be discharged. The functions, facilities and personnel composition of each department of the hospital are different. The main departments and facilities that generate sewage are: medical treatment rooms, laboratories, wards, laundry rooms, X-ray washing, animal rooms, isotope diagnosis, operating rooms, etc. The composition and amount of sewage generated by different departments and departments vary. For example, there are basically three types of medical wastewater treatment such as heavy metal wastewater, oily wastewater, washing wastewater, radioactive wastewater, etc. There are basically three types of medical wastewater treatment: physical method, chemical method and microbiology method. Currently, hospitals use chemistry more. Physics is mainly for precipitation, separation, hot and cold treatment of hospital wastewater. Chemistry is more widely used in hospital wastewater treatment. Currently, commonly used methods include chlorination disinfection, oxidant disinfection, radiation disinfection, etc. Microbial treatment methods, which have high added value in current science and technology, are gradually favored by people as microbial technology. 02