Grid type membrane module with glass fiber braided tube

A technology of glass fiber and braided tubes, which is applied in the field of membrane separation technology. It can solve the problems of sludge layer clogging between membrane filaments, uneven distribution of membrane flux, and low strength of membrane modules, so as to reduce membrane pollution and reduce maintenance costs. , the effect of low cost

Inactive Publication Date: 2011-01-26
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Problems solved by technology

[0003] This application addresses the application and manufacturing problems of hollow fiber membrane modules in the past, such as: uneven distribution of membrane flux in the length direction of membrane filaments, clogging of sludge layer between membrane filament

Method used

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  • Grid type membrane module with glass fiber braided tube
  • Grid type membrane module with glass fiber braided tube

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Embodiment Construction

[0008] (1) Make the water collection pipes at both ends and the middle water collection pipe respectively, and use the film-coated or cured glass fiber braided pipe as the membrane substrate. For the configuration of the membrane module, see figure 1 ;

[0009] (2) Will contain COD 200 ~ 500mg / L, BOD 5 100-300mg / L, ammonia nitrogen 50-160mg / L, SS 20-50mg / L domestic sewage, enter the activated sludge glass fiber braided tube membrane bioreactor for treatment, and the membrane unit adopts the glass fiber braided tube of the present invention Grid-type membrane module, under the condition of air-water ratio of 20:1 (the general design value is 15-30:1), the blowing volume is 5m 3 / hr, temperature 12~29℃, pH 6.5~8.0, operating pressure 16~20kPa, stable operation for 6 months. The COD value of the system effluent varies between 30 and 100mg / L, generally stable below 50mg / L, the BOD5 value below 10mg / L, the ammonia nitrogen below 10mg / L, the turbidity below 5NUT, and the effluent ...

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Abstract

The invention discloses a grid type membrane module with a glass fiber braided tube, which consists of a coated or cured glass fiber braided tube, water collecting pipes at two ends, a water collecting pipe in the middle, a membrane pipe hoop and a water collecting vertical pipe. The grid type membrane module is characterized in that: the coated or cured glass fiber braided tube is braided by using a glass fiber yarn material, a surface curing material is silica gel, and a surface coating material is a polymer organic material; and the coated or cured glass fiber braided tube is correspondingly fixed on a small water collecting terminal of the water collecting pipe through the membrane pipe hoop or binding, and can be mounted and replaced by using a single filament. The grid type membrane module with the glass fiber braided tube is manufactured by connecting one or more membrane fragments; membrane module sludge cannot be silt up between the membrane modules and between membrane yarns; and the grid type membrane module has the advantages of large membrane flux, corrosion-resistant material, reasonable structure, high mechanical strength, easy mounting, simple replacement, and low manufacturing cost and running cost.

Description

technical field [0001] The invention belongs to the technical field of application of membrane separation technology, and in particular relates to a glass fiber braided pipe-grid membrane module. Background technique [0002] Membrane bioreactor (membrane bioreactor, MBR) has become a kind of sewage treatment and sewage recycling technology that the world pays attention to. In the past 40 years, the research and application of MBR have developed rapidly, especially in the past 10-15 years, the number of articles related to MBR at home and abroad has increased linearly, the number and scale of application projects have continued to expand, and sewage treatment projects of 10,000 to 100,000 tons / day have emerged continuously . However, membrane fouling, high energy consumption, and high cost of membrane components and replacement have always restricted the large-scale application of this process. Membrane module is a key part of the membrane unit in the membrane bioreactor s...

Claims

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Application Information

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IPC IPC(8): B01D63/06C02F1/00C02F3/00
Inventor 樊耀波于艳徐国梁
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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