High-flux contamination-resisting type flat membrane bioreactor and flat MBR (Membrane Bioreactor) device

Abstract

The invention discloses a high-flux contamination-resisting type flat membrane bioreactor and a flat MBR (Membrane Bioreactor) device. The flat membrane bioreactor comprises an aerating box, at least two membrane boxes and at least two water collecting tubes, wherein the aerating box is provided with an aerating tube for supplying gas to the aerating box; one end of the aerating tube extends into the aerating box; the at least two membrane boxes are overlapped on the aerating box along the vertical direction; two adjacent membrane boxes are connected with each other; the aerating box is connected with the downmost membrane box; each of the membrane boxes comprises a frame and multiple flat membrane elements arranged in the frame at intervals; a water purifying space is defined in each flat membrane element; each flat membrane element is provided with a water-generating tube communicated with the corresponding water purifying space; the at least two water collecting tubes respectively correspond to the at least two membrane boxes one by one; each water collecting tube is connected with the water-generating tubes of the multiple flat membrane elements in the corresponding membrane box. According to the high-flux contamination-resisting type flat membrane bioreactor disclosed by the invention, the high-flux contamination-resisting type flat membrane bioreactor has the characteristics of high flux, excellent contamination-resisting performance, long service life and low cost.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a high-throughput anti-pollution flat-panel membrane assembly and a flat-panel MBR device with the flat-panel membrane assembly. Background technique [0002] As a new sewage treatment process that combines membrane separation and biotechnology, membrane bioreactor (MBR) has excellent and stable effluent quality and small footprint, making it suitable for urban sewage and industrial wastewater treatment and reuse. Becoming a very competitive option and highly regarded globally. The MBR process is an efficient water treatment technology, and the membrane unit is the core part of the MBR. MBR is in the stage of development and perfection, and there are still some defects in itself that need to be further solved. At present, high operating energy consumption and membrane fouling are the main bottlenecks restricting the engineering application of MBR. ...

AI Technical Summary

Problems solved by technology

In the traditional MBR, a membrane box is set in the membrane tank. If the membrane of a certain membrane element in the membrane box is damaged, the damaged membrane element will be taken out and replaced. Due to the high price of the membrane material and other components of the MBR, the cost will increase. Therefore, reducing the application cost of MBR is an important direction of research.

At the same time, the aeration pipe of the traditional MBR adopts a "U" structure, which has high aeration energy consumption and aeration dead angles, which leads to a lack of oxygen in some sludge and affects the biochemical treatment effect. In addition, the traditional MBR has low flux and poor strength. , Poor anti-pollution effect

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