Combined biochemical sewage treatment structure

• Main Authors: JIANG YE, FU QIANJUN, ZHU ZHENGNAN, ZHANG HONGYANG, LI SHANGSHANG, QU LINYAN, LI ZUCHENG, TANG JIAN
• Format: Patent
• Language: Chinese; English
• Published: 28.02.2023
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model belongs to the technical field of sewage treatment, and in particular relates to a combined biochemical sewage treatment structure which comprises a pre-anoxic tank, an outlet of the pre-anoxic tank is connected with an inlet of an anaerobic tank, an outlet of the anaerobic tank is connected with an inlet of an anoxic tank, an outlet of the anoxic tank is connected with an inlet of an aerobic tank, and an outlet of the aerobic tank is connected with an outlet of a water tank. An outlet of the aerobic tank is connected with an inlet of the peripheral-inlet and peripheral-outlet secondary sedimentation tank, and the peripheral-inlet and peripheral-outlet secondary sedimentation tank is provided with a sludge pump room and a middle lifting pump room. The pre-anoxic tank, the anaerobic tank, the anoxic tank, the aerobic tank, the peripheral-in peripheral-out secondary sedimentation tank, the sludge pump room and the middle lifting pump room are compactly arranged, so that the occupied space is s