The utility model relates to AAO-MBR (anaerobic-anoxic-oxic-
membrane bioreactor) integrated
sewage treatment equipment, which combines an advanced AAO process with an MBR technology and realizes efficient treatment and purification of
sewage. The equipment realizes the functions of
organic matter degradation, biological
nitrogen removal, biological
phosphorus removal and the like through treatment stages of the anaerobic zone, the anoxic zone, the aerobic zone and the like. Particularly, the
oxygen elimination area arranged at the
tail end of the aerobic area effectively eliminates
oxygen in the mixed liquid, and damage to the environment of the anoxic area is avoided. The application of the MBR membrane component realizes the efficient separation of mud and water, and the
effluent quality is stable and reaches the
discharge standard. The built-in corollary equipment area adopts a double-layer design, the upper-layer equipment area is provided with a
clean water tank and an
air blower, and the lower-layer equipment area is provided with various pumps and dosing devices, so that the space is fully utilized, and the equipment size and the occupied area are reduced. In addition, pipelines and valves of the water pumps are reasonably designed, so that the
water production pump and the
backwashing water pump can be used together, and the
engineering investment and the operation cost are further reduced. The integrated
sewage treatment equipment has the characteristics of compact structure, high integration level, stable and reliable
treatment effect and the like, and is suitable for
sewage treatment projects with different scales and treatment requirements.