The utility model discloses a multi-point water inlet
sewage treatment device, which relates to the technical field of
sewage treatment, and mainly comprises a water inlet, an anaerobic A tank, an MABR-A1 tank, an O tank, an MABR-A2 tank, an MBBR-O tank, a
sedimentation tank, a deep treatment tank, a water outlet and a
gas supply system, two-point water inlet is arranged, the first water inlet is arranged at the front end of the anaerobic A tank, the second water inlet is arranged at the front end of the MABR-A2 tank, the third water inlet is arranged at the front end of the MBBR-O tank, and the third water inlet is arranged at the front end of the MBBR-O tank. The anaerobic A tank, the MABR-A1 tank, the O tank, the MABR-A2 tank and the MBBR-O tank are connected in sequence, the
effluent of the MBBR-O tank enters the
sedimentation tank, the settled water enters the deep treatment tank, the deep treatment tank adopts an upper water inlet to
discharge water, a water outlet is formed in the bottom of the
tail end of the deep
sedimentation tank, and the
gas supply system supplies gas to the MABR-A1 tank, the O tank, the MABR-A2 tank and the MBBR-O tank respectively. The device adopts two-point water feeding, fully utilizes a
carbon source, degrades pollutants in water, and realizes efficient operation of
water treatment.