Wastewater treatment system of enhanced membrane aeration biofilm reactor and application of system

Abstract

The present invention belongs to the technical field of wastewater treatment, in particular to a wastewater treatment system of an enhanced membrane aeration biofilm reactor. The wastewater treatmentsystem comprises a main reactor box, a reactor base, a packing frame and an MBR membrane. The reactor base is fixedly arranged at the bottom of the main reactor box. The frame structure of the packingframe and the structure of the main reactor box are similar and the packing frame is fixedly arranged in the main reactor box. The reactor base is provided with an MBR membrane clamping slot, and theMBR membrane can be fixed and arranged in the inner space of the packing frame by means of the MBR membrane clamping slot. Soft fiber packing layers are hung on the packing frame on both sides of theMBR membrane. Biofilms are attached to the surfaces of the soft fiber packing layers. The wastewater treatment system can effectively improve the utilization rate of oxygen and save energy consumption.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment system of an enhanced membrane aeration biofilm reactor and a use method thereof. Background technique [0002] With the rapid development of my country's industrialization and the continuous expansion of urban scale, the sewage discharged every year contains a large amount of organic pollutants and nitrogenous pollutants of ammonia nitrogen and nitric acid subtypes. These pollutants enter the water environment, causing deterioration of water quality and affecting Fisheries, agriculture and urban environmental quality, which in turn affect human health. Therefore, the sewage must be treated and qualified before it can be discharged. [0003] At present, the biofilm method based on activated sludge method and biological contact oxidation is the main sewage treatment method. The activated sludge method represented by AO has a shortco...

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Problems solved by technology

The activated sludge method represented by AO has a shortcoming in that its treatment effect on nitrogen-containing pollutants is not high, and the removal rate of total nitrogen pollutants can only be guaranteed at 50-70%; biological contact oxidation The biofilm method is a wastewater treatment process derived from the biofilm method. During the operation of the process, aeration is required to provide the microorganisms with the required oxygen, but the oxygen utilization rate of the traditional aeration method is about 100% of the aeration amount. 15%-20%, low oxygen utilization leads to high energy consumption

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