Combined pool for treating micro-polluted river water

The utility model discloses a micro-polluted river water treatment combined tank which comprises a water delivery pump room, a reaction tank communicated with a water outlet of the water delivery pump room, a sedimentation tank arranged at the downstream of the reaction tank, a moving bed biological membrane tank arranged at the downstream of the sedimentation tank, and a water outlet channel arranged at the downstream of the moving bed biological membrane tank, a coagulant is arranged in the reaction tank, a mud scraper is arranged in the sedimentation tank, a filler for adsorbing a biological membrane is arranged in the moving bed biological membrane tank, the filling rate of the filler is 40%, an aeration device is arranged at the bottom in the moving bed biological membrane tank, and the moving bed biological membrane tank is communicated with the water outlet channel through a water collecting tank. The micro-polluted river water treatment combined tank provided by the utility model adopts a precipitatio