Inclined plate baffled A2O reactor with high oxygen transfer efficiency

An inclined plate baffled Anaerobic-Anoxic-Oxic (A2O) reactor with high oxygen transfer efficiency, comprising;

• a reactor body, and a secondary sedimentation tank, wherein the reactor body comprises an anaerobic zone, an anoxic zone and a deep oxic zone which are arranged sequentially from top to bottom;
• an anaerobic-anoxic inclined plate is arranged between the anaerobic zone and the anoxic zone;
• a first end of the anaerobic-anoxic inclined plate is connected with an inner wall of a first side of the reactor body, an anaerobic-anoxic communicating port is arranged between a second end of the anaerobic-anoxic inclined plate and an inner wall of a second side of the reactor body, and the anaerobic-anoxic communicating port is configured for communicating the anaerobic zone with the anoxic zone;
• an anoxic-oxic inclined plate is arranged between the anoxic zone and the deep oxic zone;
• a first end of the anoxic-oxic inclined plate is connected with the inner wall of the second side of the reactor body, an anoxic-oxic communicating port is arranged between a second end of the anoxic-oxic inclined plate and the inner wall of the first side of the reactor body, the anoxic-oxic communicating port is connected with a guide plate, the guide plate is configured for guiding sludge-water mixture to a bottom of the deep oxic zone to avoid an occurrence of short flow phenomenon of the sludge-water mixture in the oxic zone, and the anoxic-oxic communicating port is configured for communicating the anoxic zone with the deep oxic zone;
• a first side, away from the anoxic-oxic communicating port, of the deep oxic zone extends upwards to a top of the reactor body to form an oxic zone;
• a water inlet is provided at a first side of an upper part of the anaerobic zone;
• a first plug-flow stirrer is arranged at the first side of the upper part of the anaerobic zone below the water inlet;
• a second plug-flow stirrer is arranged on the inner wall of the second side of the reactor body below the anaerobic-anoxic communicating port;
• the oxic zone communicates with the secondary sedimentation tank through a gravity pipeline;
• and microporous aerators are arranged at the bottom of the deep oxic zone, and the microporous aerators communicate with an air outlet end of a deepwater aeration pump.