Product Introduction
Hospital sewage, in addition to general domestic sewage, also contains chemical substances, radioactive wastewater and pathogens. Therefore, it must be treated before being discharged, especially the sewage discharged from infectious disease wards such as hepatitis, which must be disinfected before being discharged. For hospitals without centralized sewage treatment facilities, infectious feces must be disinfected separately to make them harmless. Commonly used disinfectants include bleaching powder, liquid chlorine, sodium hypochlorite and ozone. Wastewater containing radioactive isotopes should be treated in accordance with the requirements for isotope treatment. During the treatment of hospital sewage, the settled sludge contains a large amount of bacteria, viruses and parasite eggs. It must be disinfected (commonly with slaked lime) or subjected to high-temperature composting before it can be used as fertilizer. The functions, facilities and personnel composition of various departments in a hospital are different. The main departments and facilities that generate sewage include: treatment rooms, laboratories, wards, laundries, X-ray image processing, animal rooms, isotope therapy and diagnosis, operating rooms, etc. Domestic sewage discharged by hospital administrative staff and medical personnel, as well as drainage from canteens, single dormitories and family dormitories. The composition and volume of wastewater generated by different departments and sections vary, such as heavy metal wastewater, oily wastewater, photo processing wastewater, radioactive wastewater, etc. Moreover, the wastewater produced by hospitals of different natures also varies greatly. The discharge of hospital sewage is much worse than that of general domestic sewage.
Hospital sewage has complex sources and components, containing pathogenic microorganisms, toxic and harmful physical and chemical pollutants, and radioactive pollution, etc. It has the characteristics of spatial pollution, acute infection and latent infection, etc. Without effective treatment, it will become an important way for the spread of diseases and a serious environmental pollution.
