Self-cleaning MBR flat sheet membrane module and cleaning method thereof

A flat membrane, self-cleaning technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as inconvenient cleaning, and achieve the effect of reducing costs and saving pharmaceutical expenses

Inactive Publication Date: 2013-12-25
LG ELECTRONICS CHINA RANDD CENT SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing MBR flat membrane module is not easy to clean, the present invention provides a self-cleaning MBR flat membrane module and its cleaning method

Method used

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  • Self-cleaning MBR flat sheet membrane module and cleaning method thereof
  • Self-cleaning MBR flat sheet membrane module and cleaning method thereof
  • Self-cleaning MBR flat sheet membrane module and cleaning method thereof

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Embodiment Construction

[0030] The self-cleaning MBR flat membrane module of the present invention will be described in detail below with reference to the accompanying drawings. A self-cleaning MBR flat-panel membrane module, comprising a plurality of flat-panel membrane elements 1 stacked at intervals and a frame 2 for fixing the flat-panel membrane elements 1, at least two aeration tubes 3 are arranged on the edge of the flat-panel membrane elements 1 for aeration The tube 3 is provided with a plurality of nozzles 31 for injecting gas towards the flat membrane element 1, such as figure 1 shown.

[0031] Wherein, the spaced stacking arrangement means that there is an interval or gap between two adjacent flat-plate membrane elements 1 . The edge of the flat membrane element 1 is provided with two aeration pipes 3, and the two aeration pipes 3 are arranged on the same side of the flat membrane element 1, such as figure 1 As shown, two aeration pipes 3 are arranged at the lower part of the flat membr...

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Abstract

The invention provides a self-cleaning MBR flat sheet membrane module and a cleaning method thereof. The self-cleaning MBR flat sheet membrane module comprises a plurality of flat sheet membrane elements (1) stacked at intervals and a framework (2) used for fixing the flat sheet membrane elements (1), wherein the edges of the flat sheet membrane elements (1) are provided with at least two aerator pipes (3), and the aerator pipes (3) are provided with a plurality of nozzles (31) ejecting gas towards the flat sheet membrane elements (1). With the self-cleaning MBR flat sheet membrane module and the cleaning method thereof, self-cleaning of the MBR flat sheet membrane module in operation is realized, and anti-pollution capability of the module is greatly improved. During long-term operation, the MBR flat sheet membrane module does not need cleaning, and even, on-line chemical cleaning can be cancelled; thus, the usage amount of chemical agents is reduced, operation flux of the MBR flat sheet membrane module is effectively ensured, and stability of long-time running of an MBR system is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a self-cleaning MBR flat membrane module and a cleaning method for the self-cleaning MBR flat membrane module. Background technique [0002] MBR (Membrane Bioreactor) is an advanced sewage treatment technology that replaces the secondary settling tank in traditional water treatment technology with membrane separation. It has simple process flow, good effluent quality, small footprint, high microbial concentration, and Shock load and other characteristics. However, the membrane fouling of the MBR membrane module during operation leads to rapid decay of the membrane flux and increases the required membrane area, resulting in an increase in investment. Membrane fouling is a bottleneck that hinders the widespread use of MBR technology. In the actual operation process, a lot of work in the daily operation management is to carry out various types of cleaning on the MBR compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/02C02F3/00
Inventor 孙新陈静王悦超张佩佩
Owner LG ELECTRONICS CHINA RANDD CENT SHANGHAI CO LTD
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