Study on Prevention and Control Measures of Medical Waste Water——Taking a Hospital in Wuhan as an Example
Sewage treatment station was the terminal to receive medical wastewater,so it was the key to prevent and control the pollution of medical wastewater and reduce the risk of secondary infection in the environmental design of hospitals.Through the research on the design and operation experience of water pollution prevention and control in a hospital in Wuhan,the key points of operation and management of hospital wastewater treatment were as follows.In order to prevent the spread of infectious disease through the medical wastewater and the envi-ronment pollution,the hospitals have adopted the process of"pre-disinfection tank+septic tank+MBBR bio-chemical tank+coagulation precipitation+disinfection"to make the wastewater discharge meet the standards.In view of the treatment of excess chlorine,it was necessary for the downstream sewage treatment plant operators to strengthen the monitoring of residual chlorine indicators and sludge activity,and reduce the impact of sewage on the biochemical treatment system through dilution.The use of obfurage and negative pressure means to collect the waste gas of key sewage treatment structures,and the treatment process of"activated carbon adsorption+ul-traviolet catalysis"can effectively control the aerosol secondary pollution caused by viruses.Rainwater in pollu-ted areas of hospitals might contain harmful components,so it must be collected by a separate pipe network,and the rainwater should be disinfected and discharged to the municipal pipe network up to the standard.This study analyzed the measures and effects of wastewater treatment in hospitals,and attention should be paid to the key points of operations and management in the process of wastewater treatment in hospitals,aiming to provide a ref-erence for other hospitals for the treatment of medical waste water.
medical waste waterenvironmental designanti-pollution measureswastewater treatment
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