Preparation method of ceramic membrane filter element for treatment of printing and dyeing wastewater

A technology for printing and dyeing wastewater and filter elements, applied in ceramic products, chemical instruments and methods, applications, etc., can solve the problems of high price, low flux and easy clogging of membrane modules and membrane equipment, so as to prevent membrane fouling and flux Attenuation, increased water flux, less clogging effect

Inactive Publication Date: 2012-10-10
ZHONGCAI HIGH NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first is the high price of membrane components and membrane equipment
High operating costs due to high resistance
In addition, the service life of the membrane is relatively short, resulting in high membrane replacement costs;
[0005] The second is that the membrane separation performance is excellent but the energy consumption is large
[0008] At present, the inorganic ceramic membranes used in the printing and dyeing industry mainly use multi-channel ceramic membrane tubes in the form of cross-flow filtration. Most of them use ultrafiltration and nanofiltration, and the pore diameters are mostly within tens of microns. Easy to clog and difficult to regenerate, these have become problems that hinder the widespread application of ceramic membrane materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the ceramic membrane filter element for printing and dyeing wastewater treatment of the present invention comprises the following steps:

[0036] (1) Preparation of support body:

[0037] ① Ingredients: Mix 300-mesh spherical bauxite aggregate, high-temperature binder, wood chips, phenolic vinyl ester resin T-158, and graphite evenly, of which spherical bauxite aggregate accounts for 95% of the total mass; the high-temperature binder accounts for 5% of the total mass of the spherical bauxite aggregate and the high-temperature binder; the porosity enhancer accounts for 8% of the total mass of the spherical bauxite aggregate and the high-temperature binder, and the resin accounts for 6% of the total mass of bauxite aggregate and high-temperature binder; the release agent accounts for 0.07% of the total mass of spherical bauxite aggregate and high-temperature binder;

[0038] ②Isostatic pressing: After the batching is completed, mix it evenly in ...

Embodiment 2

[0046] The preparation method of the ceramic membrane filter element for printing and dyeing wastewater treatment of the present invention comprises the following steps:

[0047] (1) Preparation of support body:

[0048] ① Ingredients: Mix 200-mesh spherical bauxite aggregate, high-temperature binder, wood chips, phenolic vinyl ester resin T-158, and graphite evenly, of which spherical bauxite aggregate accounts for 90% of the total mass; high-temperature binder accounts for 10% of the total mass of spherical bauxite aggregate and high-temperature binder; porosity enhancer accounts for 5% of the total mass of spherical bauxite aggregate and high-temperature binder, and resin accounts for spherical aluminum 4% of the total mass of bauxite aggregate and high-temperature binder; the release agent accounts for 0.15% of the total mass of spherical bauxite aggregate and high-temperature binder;

[0049] ②Isostatic pressing: After the batching is completed, mix it evenly in the mixe...

Embodiment 3

[0056] The preparation method of the ceramic membrane filter element for printing and dyeing wastewater treatment of the present invention comprises the following steps:

[0057] (1) Preparation of support body:

[0058] ① Ingredients: Mix 400-mesh spherical bauxite aggregate, high-temperature binder, wood chips, phenolic vinyl ester resin T-158, and graphite evenly, of which spherical bauxite aggregate accounts for 80% of the total mass; high-temperature binder accounts for 20% of the total mass of spherical bauxite aggregate and high-temperature binder; porosity enhancer accounts for 3% of the total mass of spherical bauxite aggregate and high-temperature binder, and resin accounts for spherical aluminum 2% of the total mass of bauxite aggregate and high-temperature binder; the release agent accounts for 0.5% of the total mass of spherical bauxite aggregate and high-temperature binder;

[0059] ②Isostatic pressing: After the batching is completed, mix it evenly in the mixer...

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PUM

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Abstract

The invention relates to a preparation method of a ceramic membrane filter element for treatment of printing and dyeing wastewater, and belongs to the technical field of sewage treatment. The preparation method includes: adding certain admixture to spherical bauxite aggregate, preparing a ceramic filter support by cold isostatic forming and near-net-shape forming, preparing uniform and stable transparent TiO2 sol by sol-gel technology, immerging the prepared ceramic filter support into the TiO2 sol, and drying and performing heat treatment to obtain the ceramic membrane filter element, namely, using the spherical bauxite aggregate to prepare single-channel ceramic filter support, and coating TiO2 film on the basis of the single-channel ceramic filter support. Compared with the prior art, the ceramic membrane filter element prepared by the method is in a single-channel tubular structure, large in aperture, less prone to blocking, and easy to clean. In addition, water flux is improved greatly, and membrane pollution and flux attenuation can be avoided effectively.

Description

technical field [0001] The invention relates to a preparation method of a ceramic membrane filter element for printing and dyeing wastewater treatment, belonging to the technical field of sewage treatment. Background technique [0002] Printing and dyeing wastewater has always been the focus and difficulty of wastewater treatment process research due to its large discharge volume and high difficulty in treatment. In order to achieve the sustainable development of the printing and dyeing industry, the recycling of printing and dyeing wastewater has become the key to achieve this goal. In recent years, the use of membrane technology for advanced wastewater treatment and reuse is one of the hotspots in water treatment technology research. There are many reports on the treatment of domestic sewage and industrial wastewater by ultrafiltration, microfiltration or reverse osmosis. In particular, the effect of using membrane bioreactor to treat various wastewater is quite good, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/10C04B35/622B01D71/02B01D67/00B01D69/04
Inventor 张晓丽赵世凯巩玉贤薛友祥李宪景张业明李小勇
Owner ZHONGCAI HIGH NEW MATERIAL
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