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Hollow-fiber membrane module of additional electric field

An additional electric field and fiber membrane technology, applied in the field of devices for removing organic matter or particles in water, can solve the problems that flat membrane devices cannot be applied to water treatment or particle separation processes, and cannot further increase the filtration area for filtration and separation, so as to reduce the concentration difference Effect of Polarization and Membrane Fouling and Efficiency Improvement

Inactive Publication Date: 2010-06-09
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this additional electric field membrane filtration device can only be filled with a flat membrane, which cannot further increase the filtration area to achieve large flow filtration and separation.
Therefore, this kind of flat membrane device with additional electric field cannot be applied in large-scale water treatment or particle separation process

Method used

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  • Hollow-fiber membrane module of additional electric field
  • Hollow-fiber membrane module of additional electric field
  • Hollow-fiber membrane module of additional electric field

Examples

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] First, the commercially available hollow fiber membrane filaments 12 are bent into a “U” shape, and the water outlet end of the “U”-shaped hollow fiber membrane filaments 12 and the membrane filament fixing plate 9 are bonded with epoxy resin 6. When the epoxy resin 6 is not hardened, the film filament fixing plate 9 is quickly oscillated on the oscillator, so that the epoxy resin 6 completely penetrates into the gap between the film filaments. After the epoxy resin 6 is hardened, the epoxy resin 6 near the water outlet end of the hollow fiber membrane filament 12 is cut off, so that the water outlet end is exposed outside the epoxy resin glue 6.

[0017] The bottom plate 15 is drilled in the center, and the diameter of the hole is slightly smaller than that of the anode 4. Apply pressure to make anode 4 pass through the bottom

[0018] The small hole in the cente...

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PUM

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Abstract

The invention relates to a hollow-fiber membrane module of an additional electric field, comprising a module casing (13), an anode (4), a cathode (14) and a U-shaped hollow-fiber membrane silk (12), wherein the module casing (13) is provided with a water inlet (3), an air release valve (5) and a cross flow water outlet (11) at the upper casing and the lower casing, the anode (4) is arranged at the central axis of the module casing (13), the cathode (14) is arranged outside the anode (4), the U-shaped hollow-fiber membrane silk (12) is arranged between the anode (4) and the cathode (14). In the process of membrane filtration, under the action of the electric field, charged organics or particles go through electrophoretic migration, electrocoagulation, which can reduce concentration polarization and membrane pollution caused by the charged organics or particles. The module of the invention integrates the electric field with the hollow-fiber membrane, thus giving play to the advantages of the hollow-fiber membrane, such as high filtration and separation efficiency, large membrane filtration area and small occupied space; in addition, multiple modules can be connected in parallel to obtain higher filtration speed and enhance membrane separation efficiency, as a result, the hollow-fiber membrane module enjoys extensive application prospect in the field of deep processing concerning water treatment.

Description

Technical field [0001] The invention relates to a device for removing organic matter or particles in water, in particular to a filter device coupled with a hollow fiber membrane module and an additional electric field for removing organic matter or particles in water in water treatment. Background technique [0002] At present, the use of microfiltration, ultrafiltration or nanofiltration membranes to separate organics or particles in water has been widely used. However, when the concentration of the liquid to be filtered or the liquid to be separated is high, a concentration polarization layer is easily formed on the surface of the membrane, which increases the separation resistance of the membrane; when the liquid to be filtered or the liquid to be separated contains components that easily pollute the membrane with a higher Zeta potential , The membrane fouling is aggravated, and the membrane life is shortened. In order to overcome these shortcomings, two plate electrodes are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/04B01D65/08
Inventor 邓慧萍商冉胡婧逸赵纯方火明史俊
Owner TONGJI UNIV
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