Residual chlorine controllable integrated sewage treatment system for medical institution

The utility model discloses a residual chlorine controllable medical institution sewage integrated treatment system which comprises a pretreatment area, a biological membrane treatment area and a disinfection area, and the pretreatment area is used for solid-liquid separation of sewage; wherein the biological membrane treatment area is provided with an MBR membrane group and is used for culturingmicroorganisms, effluent of the pretreatment area flows into the biological membrane treatment area, and organic matters, ammonia nitrogen pollutants and bacteria in sewage are removed by virtue of the MBR membrane group; wherein a chlorine dioxide generator is arranged in the disinfection area, effluent of the biological membrane treatment area flows into the disinfection area, and sewage is sterilized and disinfected by means of the chlorine dioxide generator. The medical institution sewage integrated treatment system with controllable residual chlorine has the advantages of small occupied area, convenience in maint