An integrated device for membrane filtration and aeration

Abstract

The invention relates to an integrated membrane filtration and aeration device, which comprises an upper chamber, a lower chamber and a cylindrical filter membrane sealed and connected between the upper chamber and the lower chamber; the center of the upper chamber and the lower There are support rods connected between the centers of the cavity, and several water channel dividing plates are distributed around the supporting rods. One side of the water channel dividing plates is connected with the supporting rods, and the other side of the water channel dividing plates is connected with two air Channel divider, the two air channel dividers are in contact with the filter membrane to form fan-shaped intake channels; and any adjacent two water channel dividers, two intake channels and two intake channels The filter membranes between them together form a drainage channel; the upper chamber is connected with an outlet pipe, and the lower chamber is connected with an air inlet pipe; the present invention integrates aeration and filtration, and realizes the removal of the outer membrane while degrading water pollutants. The erosion of surface scaling pollutants maintains the stability of the effluent membrane flux and high oxygen transfer efficiency.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an integrated membrane filtration and aeration device. Background technique [0002] With the gradual improvement of the municipal drainage pipe network and the continuous improvement of the sewage treatment rate, the effluent standards after sewage treatment are also becoming stricter. Under this situation, the membrane filtration process has been rapidly developed and widely used due to its high-quality effluent quality. use. Compared with the conventional activated sludge process, the membrane filtration process saves the sedimentation section required in the conventional process and reduces the footprint because of its integrated function of filtration and biochemistry. In addition, the membrane process has a filtration function to achieve high-quality effluent water quality. [0003] However, in the current actual operation process, the process mainly uses its own micro-por...

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Problems solved by technology

[0003] However, in the current actual operation process, the process mainly uses its own micro-pore structure to perform the filtering function. As the operation time continues, the clogging problem caused by membrane fouling becomes more and more obvious, especially the problem of biofouling, and cleaning Difficult, the fouling problem not only affects the amount of treated water, but also gradually increases the energy consumption of the system, which has a certain impact on the normal operation of the system and the stable compliance of the effluent

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