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Ozone catalyst for sewage treatment and preparation and sewage treatment method thereof

A technology for sewage treatment and catalyst, which is applied in catalyst activation/preparation, chemical instruments and methods, oxidized water/sewage treatment, etc. It can solve the problems of many by-products and complicated steps, and achieve the reduction of dosage, high preparation efficiency, and improved catalysis. The effect of efficiency

Inactive Publication Date: 2016-12-14
晓清环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The second object of the present invention is to provide a method for preparing the catalyst. In the method of the present invention, the catalyst is prepared by firmly coating the surface of diatomite particles with an inorganic material having catalytic activity and calcining the catalyst once. , which can solve the technical problems of complex steps and many by-products in the preparation method of heterogeneous catalysts in the prior art

Method used

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  • Ozone catalyst for sewage treatment and preparation and sewage treatment method thereof
  • Ozone catalyst for sewage treatment and preparation and sewage treatment method thereof
  • Ozone catalyst for sewage treatment and preparation and sewage treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Take an appropriate amount of diatomite, add water and stir evenly, and make diatomite particles with a particle size of 3-5mm;

[0042] (2) Weigh the MnO with a particle size of 0.1-1 mm according to the ratio of the mass of diatomite particles to the mass of catalytically active inorganic materials in a ratio of 1:8. 2 with Fe 2 o 3 Mixing metal oxide inorganic materials; then, using a sugar coating preparation machine to firmly wrap the two metal oxides on the surface of diatomite particles to generate a particle mixture;

[0043] (3) The particle mixture in step (2) was calcined at 800° C. for 2 hours to obtain the catalyst of Example 1.

[0044] Then, the particle size of the catalyst in Example 1 was detected, and the result showed that the particle size of the catalyst prepared in Example 1 was 5-7 mm.

Embodiment 2

[0046] (1) Take an appropriate amount of diatomite, add water and stir evenly, and make diatomite particles with a particle size of 2 to 2.5mm;

[0047] (2) Weigh the MnO with a particle size of 0.1-1 mm according to the ratio of the mass of diatomite particles to the mass of catalytically active inorganic materials in a ratio of 1:8. 2 with Fe 2 o 3 Mixing metal oxide inorganic materials; then, using a sugar coating preparation machine to firmly wrap the two metal oxides on the surface of diatomite particles to generate a particle mixture;

[0048] (3) The particle mixture in step (2) was calcined at 800° C. for 2 hours to obtain the catalyst of Example 2.

[0049] Then, the particle size of the catalyst in Example 2 was detected, and the result showed that the particle size of the catalyst prepared in Example 2 was 4-4.5 mm.

Embodiment 3

[0051] (1) Take an appropriate amount of diatomite, add water and stir evenly, and make diatomite particles with a particle size of 5.5-6mm;

[0052] (2) Weigh the MnO with a particle size of 0.1-1 mm according to the ratio of the mass of diatomite particles to the mass of catalytically active inorganic materials in a ratio of 1:8. 2 with Fe 2 o 3 Mixing metal oxide inorganic materials; then, using a sugar coating preparation machine to firmly wrap the two metal oxides on the surface of diatomite particles to generate a particle mixture;

[0053] (3) The particle mixture in step (2) was calcined at 800° C. for 2 hours to obtain the catalyst of Example 3.

[0054] Then, the particle size of the catalyst in Example 3 was detected, and the result showed that the particle size of the catalyst prepared in Example 3 was 7.5-8mm.

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Abstract

The invention provides an ozone catalyst for sewage treatment and a preparation and sewage treatment method thereof. The catalyst can catalyze an ozone sewage treatment system under the heterogeneous condition, and therefore secondary pollution and other problems caused by a homogeneous ozone catalyst in the prior art can be avoided, and the ozone catalyst has the advantages of being stable in structure, capable of effectively improving ozone oxidization activity and the like. Meanwhile, in the method, inorganic materials with catalytic activity firmly wrap surfaces of kieselguhr granules, calcining and forming are conducted at a time to prepare the catalyst, and the method has the advantages of being simple in operation step, high in preparation efficiency, free of raw material waste and the like. Furthermore, in the sewage treatment method, the catalyst is adopted as a heterogeneous catalyst for ozone treatment of polluted water bodies, and therefore the zone oxidization capacity can be effectively improved, treatment efficiency is improved, and meanwhile secondary pollution can not be caused.

Description

technical field [0001] The invention relates to the field of ozone catalytic oxidizers, in particular to an ozone catalyst for sewage treatment, its preparation and a sewage treatment method. Background technique [0002] With the continuous and rapid development of society, people's material level is constantly improving, and people's requirements for water quality are also getting higher and higher. However, with the continuous development of industry and the continuous increase of population, the water quality has not improved, but has deteriorated day by day. In particular, the content of organic pollutants in water quality has gradually increased since the 1950s, and the composition of organic pollutants has become more and more complex, and their degradation has become more and more difficult, which has brought great harm to water bodies and human health. threaten. Therefore, the treatment of organic pollutants in water has become the focus of environmental problems....

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J23/75C02F1/78
CPCC02F1/78B01J23/002B01J23/75B01J23/8892B01J37/0221B01J2523/00B01J35/40B01J2523/47B01J2523/842B01J2523/845
Inventor 韩小清齐国瑞
Owner 晓清环保科技股份有限公司
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