Medical institutions sewage treatment program: sewage treatment through the CASS process.
CASS process features: CASS pool through technical innovation, optimization of design to make its volume smaller, more effective. This method of continuous water intake, but not aeration, the concentration of organic matter is very high, anoxic and anaerobic state, inhibit the growth of aerobic bacteria, control the sludge does not swell. The main reaction area is divided into anoxic and aerobic two parts, aeration, sedimentation and skimming are carried out periodically.
No water is fed into the settling stage, which eliminates possible hydraulic interference and improves sludge characteristics and effluent water quality. It is an ideal biochemical treatment method for hospital wastewater which is very complex in composition, contains many kinds of germs, viruses, parasite eggs and some harmful substances, and has stronger adaptability and better treatment effect for hospital wastewater with big changes in water quality and quantity.
Related regulations and requirements for sewage treatment
Because of the special nature of hospital sewage, to determine the hospital sewage treatment process, not only to achieve the purpose of disinfection and sterilization, should also consider the discharge of sewage and the receiving waters of the environmental functional zoning requirements for water quality. Hospital sewage should implement the "medical institutions discharge standards for water pollutants" (GB18466-2005), which puts forward higher requirements for hospital sewage treatment.
According to the standards and related requirements, the use of chemical chlorine dioxide disinfection or CASS process to treat hospital wastewater can be well adapted to this change, and compared with the corresponding treatment methods, the effect is good, less investment, convenient management, low operating costs, advanced process, practical, and its technically and economically competitive, is the current hospital wastewater treatment in the collection of social, economic, environmental, Ecological benefits in one of the preferred method.
The above content refers to Baidu Encyclopedia - "Medical Institutions Water Pollutants Emission Standards"