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A kind of ceramic membrane and preparation method thereof, ceramic membrane module, waste water treatment system

A wastewater treatment system and ceramic membrane technology, applied in water/sewage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of inability to exert catalytic activity, complex structure, ceramic membrane pollution, etc. Achieve the effect of speeding up the oxidation reaction rate, improving the reaction efficiency and shortening the mass transfer process

Inactive Publication Date: 2020-03-03
深圳市康源环境纳米科技有限公司 +1
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Problems solved by technology

Generally, ozone catalysts have high catalytic activity when they are in powder form, but if they are in contact with water bodies in powder form, they are easily washed away with water flow and cannot exert good catalytic activity.
At present, the way to install the catalyst is generally to coat or support the catalyst on the tube wall of the tubular ceramic membrane, which has the problem that the ceramic membrane is easy to be polluted
In addition, there is also a catalyst addition by setting a specific catalyst addition device, but this method has a complicated structure and high cost
In addition, the catalytic efficiency of the above-mentioned setting method still cannot meet the actual needs of the project, and its efficiency improvement is not enough to significantly reduce the operating cost

Method used

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  • A kind of ceramic membrane and preparation method thereof, ceramic membrane module, waste water treatment system
  • A kind of ceramic membrane and preparation method thereof, ceramic membrane module, waste water treatment system

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experiment example

[0028] Experimental example: preparation of ceramic membrane: ceramic particles are processed into tiny ceramic particles with nanoscale characteristics, and the particle size is 200nm. The manganese dioxide is processed into particles with nanoscale characteristics, and the particle size is 260nm. Then, the ceramic particles and the manganese dioxide particles are mixed according to the mass ratio of 100:2, and are sintered at a high temperature of 1200°C to bond them to form a sintered body to obtain a ceramic film. Such as figure 2 Shown is the scanning electron microscope image of the prepared ceramic membrane. It can be seen from the figure that the average diameter of the pore channel in the microstructure of the ceramic membrane is 50 nm, and the length of the prepared pore channel is 2 mm.

[0029] The ceramic membrane was formed into a flat plate with a length of 1200 mm, a width of 300 mm, and a thickness of 6 mm. The prepared multiple flat ceramic membranes are ...

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Abstract

The invention discloses a ceramic membrane, a preparation method thereof, a ceramic membrane component and a wastewater treatment system. The preparation method for the ceramic membrane comprises the following steps: 1, processing ceramic particles into ceramic particles with the particle sizes of 130 to 650nm, and processing manganese dioxide into particles with the particle sizes of 260 to 360nm; 2, mixing the ceramic particles and the manganese dioxide particles according to the mass ratio of 100:(2-5), and performing sintering at 1,150 to 1,250 DEG C to bond the mixed particles to obtain the ceramic membrane, wherein the microstructure of the ceramic membrane comprises pore channels with average diameters of 20 to 100nm, and the manganese dioxide particles are distributed in the pore channels. The prepared ceramic membrane is used for the wastewater treatment system, and has relatively high ozone reaction efficiency and rate and relatively good waste degradation effects.

Description

【Technical field】 [0001] The invention relates to the technical field of advanced treatment of water and sewage, in particular to a ceramic membrane and a preparation method thereof, a ceramic membrane module and a wastewater treatment system. 【Background technique】 [0002] Ozone oxidation technology is an advanced treatment technology widely used in the field of drinking water and sewage treatment. It is used to produce high-quality drinking water, or to produce recycled water to promote the utilization of reclaimed water resources. The main function of ozone oxidation is to use the strong oxidizing ability of ozone to decompose and destroy toxic and harmful refractory organic pollutants, detoxify the toxicity of such pollutants, and convert them into structural forms that can be degraded by microorganisms, or into Harmless substances such as carbon dioxide. Therefore, ozonation plays an important role in the field of water and wastewater treatment. [0003] The ozone ox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/78B01J23/34
CPCB01J23/34B01J35/065C02F1/725C02F1/78
Inventor 张锡辉范小江苏子杰
Owner 深圳市康源环境纳米科技有限公司
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