◆Process introduction

After the waste water passes through the grid to remove large impurities, it flows into the regulating tank by itself, and enters the steam floater by the sewage lift pump, where solid-liquid separation is carried out, and the separated sludge is discharged into the sludge thickening tank, and the supernatant passes through The distribution tank is pumped into the UASB tank. After the decomposition of anaerobic bacteria, it flows into the sludge interception tank. After that, the effluent flows into the aerobic tank. After the decomposition of aerobic bacteria, it enters the secondary sedimentation tank, and the aerobic tank passes through the mixing The liquid reflux pump returns part of the mixed liquid to the anoxic tank. The sludge from the secondary sedimentation tank flows into the sludge return tank, and the supernatant flows into the coagulation reaction tank. The sewage is added to the coagulation reaction tank with coagulant and flocculant. The effluent from the coagulation reaction tank enters the flocculation sedimentation tank for flocculation The effluent of the pool is filtered by the sand filter and then enters the intermediate pool. The effluent of the intermediate pool enters the disinfection pool, and is discharged after being disinfected by chlorine dioxide.

Part of the sludge in the sludge return tank needs to be returned to the UASB tank, and the remaining sludge enters the sludge thickening tank, and passes through the sludge pump to the sludge dehydrator for dehydration. The water returns to the collection well and the mud cake is transported for treatment.