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Catalyst for wastewater treatment and preparation method of catalyst

A wastewater treatment and catalyst technology, which is applied in the field of water treatment, can solve the problems that affect the industrial application of catalytic oxidation methods, low catalytic oxidation reaction efficiency, low secondary pollution of treatment efficiency, etc., to achieve large-scale industrial production, good catalytic effect, wide range of effects

Inactive Publication Date: 2019-10-25
SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Catalytic technology is a commonly used catalytic method in water treatment. Catalytic oxidation technology has the characteristics of high treatment efficiency, low secondary pollution and fast oxidation speed. When treating some refractory organic wastewater, hydrogen peroxide is usually used as oxidant, but due to catalytic oxidation The characteristics of low reaction efficiency and large amount of oxidant have affected the industrial application of catalytic oxidation methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A catalyst for waste water treatment comprises composite spheres, the diameter of which is 15-35mm. The composite sphere includes aluminum powder, iron powder, copper powder, activated carbon powder and adhesive. The particle size of aluminum powder, iron powder, copper powder and activated carbon powder is 150-200 mesh. Sodium Methylcellulose. Wherein, the weight percent contents of aluminum powder, iron powder, copper powder, activated carbon powder and binder are respectively 20%, 22%, 25%, 30% and 3%.

[0020] Above-mentioned a kind of preparation method for the catalyst of waste water treatment, comprises the steps:

[0021] S1, activate the activated carbon powder in nitric acid solution, react at 85°C for 10 hours, filter, wash and dry to obtain the catalyst carrier;

[0022] S2, mix the activated carbon powder, aluminum powder, iron powder, copper powder and adhesive and bake in helium at a temperature of 300° C. for 2 hours to prepare a composite sphere with ...

Embodiment 2

[0024] A catalyst for waste water treatment comprises composite spheres, the diameter of which is 15-35mm. The composite sphere includes aluminum powder, iron powder, copper powder, activated carbon powder and adhesive. The particle size of aluminum powder, iron powder, copper powder and activated carbon powder is 150-200 mesh. Sodium Methylcellulose. Among them, the weight percentage content of aluminum powder, iron powder, copper powder, activated carbon powder and binder are respectively 25%, 22%, 23%, 26%, 4%.

[0025] S1, activate the activated carbon powder in nitric acid solution, react at 85°C for 10 hours, filter, wash and dry to obtain the catalyst carrier;

[0026] S2, mix the activated carbon powder, aluminum powder, iron powder, copper powder and adhesive and bake in helium at 400° C. for 2 hours to prepare a composite sphere with a diameter of 15-35 mm.

Embodiment 3

[0028] A catalyst for waste water treatment comprises composite spheres, the diameter of which is 15-35mm. The composite sphere includes aluminum powder, iron powder, copper powder, activated carbon powder and adhesive. The particle size of aluminum powder, iron powder, copper powder and activated carbon powder is 150-200 mesh. Sodium Methylcellulose. Among them, the weight percentage content of aluminum powder, iron powder, copper powder, activated carbon powder and binder is respectively 30%, 20%, 20%, 26%, 4%.

[0029] S1, activate the activated carbon powder in nitric acid solution, react at 85°C for 10 hours, filter, wash and dry to obtain the catalyst carrier;

[0030] S2, mix the activated carbon powder, aluminum powder, iron powder, copper powder and adhesive and bake in helium at 350° C. for 2 hours to prepare a composite sphere with a diameter of 15-35 mm.

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Abstract

The invention discloses a catalyst for wastewater treatment and a preparation method of the catalyst. The catalyst structurally comprises a composite sphere, and the composite sphere is prepared fromthe components in percentage by weight: 20-30% of aluminum powder, 20-30% of iron powder, 20-30% of copper powder, 20-30% of activated carbon powder and 2-5% of a binder. The catalyst is simple in preparation method, large in range of wastewater treatment and low in cost, the specific surface area of an alloy structure in the catalyst is large, the activity is better, the catalytic effect is good,and large-scale industrial production is convenient.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a catalyst for wastewater treatment and a preparation method thereof. Background technique [0002] Catalytic technology is a commonly used catalytic method in water treatment. Catalytic oxidation technology has the characteristics of high treatment efficiency, low secondary pollution and fast oxidation speed. When treating some refractory organic wastewater, hydrogen peroxide is usually used as oxidant, but due to catalytic oxidation The characteristics of low reaction efficiency and large amount of oxidant have affected the industrial application of catalytic oxidation methods. In order to further improve the efficiency of the catalytic oxidation reaction, and further improve the activity and stability of the catalyst, a variety of catalyst active parts are used to work together to further increase the utilization rate of hydrogen peroxide, so further improvement and up...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J35/08B01J35/10
CPCB01J23/745B01J35/51B01J35/61
Inventor 刘文静尹海亮刘叶
Owner SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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