Medical sewage is mainly discharged from the diagnosis and treatment rooms, laboratories, wards, laundry rooms, X-ray studios, and operating rooms of hospitals, and its source and composition are very complex. Hospital sewage contains a large amount of pathogenic bacteria, viruses, and chemicals, characterized by spatial pollution, acute infection, and latent infection. Medical wastewater has attracted public attention multiple times, and the discharge of medical wastewater poses great harm to water resources and has become a "source" of harm to people's health; Only a few hospitals in some regions can truly meet national emission standards. The lack of legal norms and weak environmental awareness have led to the direct discharge of medical wastewater and the current situation of "high pollution and low treatment" in major hospitals.

However, major hospitals have not properly disposed of medical wastewater with serious hazards, and have overlooked the potential for malignant water pollution incidents caused by virus transmission in the wastewater. At the same time, relevant national legislation also needs to be followed up in a timely manner, with clearer regulations on the treatment of medical wastewater. Environmental protection departments at all levels should also strengthen management and promote environmental awareness. Compared to industrial wastewater, medical wastewater has a greater impact on the environment and poses greater harm. During the operation of hospitals, wastewater with direct or indirect infectivity, toxicity, and other hazards is inevitably generated. The source of these wastewater determines its complexity in composition, involving various biological, chemical, or radioactive pollutants. In addition to containing a large number of pathogenic bacteria, viruses, insect eggs, and other pathogens, medical wastewater also contains chemical agents and radioactive isotopes, which have several major characteristics of space pollution, acute infection, and latent infection. If medical sewage containing pathogenic microorganisms is discharged directly into urban sewers without disinfection, inactivation, or other harmless treatment, it often causes water and soil pollution, and in severe cases, can cause various diseases or lead to the outbreak of water-borne infectious diseases.

Our company has developed A2O-MBR integrated sewage treatment equipment. The integrated sewage treatment equipment is a high-efficiency membrane bioreactor integrated equipment developed by our company. This equipment enhances the aggregation of microbial communities and biological species in the system, improves the sewage treatment capacity and efficiency, and greatly improves the water quality and volume load of the system's effluent. The effluent can meet the Class A pollutant discharge standard of urban sewage treatment plants, and can be reused as reclaimed water.

Integrated sewage treatment equipment is suitable for domestic sewage treatment or similar sewage treatment in hotels, restaurants, sanatoriums, hospitals, schools, shopping malls, residential areas, towns, tourist attractions, etc. The single device has a processing capacity of 10-200m3/d and supports parallel operation of multiple devices.