Wastewater treatment catalyst and preparation method thereof

A technology for sewage treatment and catalyst, applied in the chemical industry, can solve the problems of loss of service life with water, unstable structure, etc., and achieve the effect of good hydrophilicity and dispersion rate, good uniformity and dispersion, and ensuring purity

Inactive Publication Date: 2012-10-31
江苏沃土环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a catalyst for sewage treatment and its preparation method, which overcomes the shortcomings of existing commonly used sewage treatment catalysts such as unstable structure, loss with water, and short service life.

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific examples.

[0015] A sewage treatment catalyst described in this embodiment, which includes the following raw materials (kg): elemental iron 15, divalent iron oxide 4.5, trivalent iron oxide 17.5, magnesium oxide 30, nickel 2.7, zinc 1.4, yellow mud 28.9. The yellow mud is taken from the ground below 3 meters after geological subsidence in the south of the Yangtze River.

[0016] The preparation method of above-mentioned sewage treatment catalyst, it comprises the following steps:

[0017] Mix, at first above-mentioned metal and metal oxide are mixed in the yellow mud of 28.9kg;

[0018] Sintering, sintering the above-mentioned mixed substance at 1500 degrees Celsius, cutting and shaping into particles after sintering, the diameter of the particles is 1.5cm spherical particles;

[0019] High-temperature sintering, the shaped particles are sintered again at a high temperature of 1700 de...

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Abstract

The invention relates to a wastewater treatment catalyst and a preparation method thereof. The wastewater treatment catalyst comprises the following raw materials in percentage by mass: 15 percent of elemental iron, 4.5 percent of bivalent iron oxide, 17.5 percent of trivalent iron oxide, 30 percent of magnesium oxide, 2.7 percent of nickel, 1.4 percent of zinc and 28.9 percent of yellow mud. Theinvention has the advantages that the sintering stability of added metal materials and metal oxide materials is ensured by utilizing the inherent viscosity of the yellow mud, and the yellow mud does not contain impurities of metals and metal oxides per se, therefore, the purity of a sintering result is ensured; various metals and metal oxides have good uniformity and dispersibility in a process of repeated sintering; and the yellow mud volatilizes per se in the sintering process to form gaps, and therefore, catalyst particles have good hydrophilicity and dispersion rate.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a sewage treatment catalyst and a preparation method thereof. Background technique [0002] Water is the basic condition for human survival. However, with the development of the economy and the prosperity of the manufacturing industry, a large amount of various sewage is produced, which poses a huge threat to the living environment of human beings. And more chemical agents, resulting in high toxicity of the water body, which is a kind of wastewater that is difficult to treat. The currently commonly used catalysts have the disadvantages of unstable structure, loss with water, and short service life. Contents of the invention [0003] The purpose of the present invention is to provide a catalyst for sewage treatment and its preparation method, which overcomes the shortcomings of existing commonly used catalysts for sewage treatment such as unstable structure, loss with water and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80B01J37/08C02F1/72C02F103/34
Inventor 殷衡
Owner 江苏沃土环境科技有限公司
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