Inverted AAO combined biochemical pool

• Main Authors: WEI YEXIANG, HE YANG, HE XU, SUN ZHENG, BAI HUAQING, ZENG ZHENGREN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model provides an inverted AAO combined biochemical pool, the inverted AAO combined biochemical pool comprises a biochemical pool body, and an anoxic pool, an anaerobic pool, an aerobic pool and a sedimentation pool which are integrated in the biochemical pool body, the anoxic pool is connected with a sewage inlet pipe, the anaerobic pool is arranged at the downstream of the anoxic pool, the aerobic pool is arranged at the downstream of the anaerobic pool, and the sedimentation pool is connected with a sewage outlet pipe. The sedimentation tank is arranged at the downstream of the aerobic tank; the sedimentation tank is used for mud-water separation of the mixed liquid, a water outlet pipe used for discharging clear water on the upper layer and a sludge return pipe used for discharging sludge on the lower layer are arranged in the sedimentation tank, and the sludge return pipe is connected with the anoxic tank and used for returning the sludge in the sedimentation tank to the anoxic tank; accordin