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Preparation method of catalytic oxidizer for metal pollutants in water

A technology of pollutants and oxidants, which is applied in the field of preparation of catalytic oxidation preparations, and can solve problems such as high prices

Inactive Publication Date: 2013-04-17
姜英杰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there are many catalytic oxidants for water treatment, most of which are preparations for catalytic oxidation of organic pollutants in water, while catalytic oxidation preparations for metal pollutants in water are rare and expensive, which limits their application in water treatment processes. application in

Method used

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Embodiment 1

[0011] The present invention is used for the preparation method of catalytic oxidizer of metal pollutant in water, comprises the following steps:

[0012] 1. Milling step: grind high-grade zeolite to 325 mesh;

[0013] 2. Mixing step: fully mix 70% zeolite powder, 20% iron oxide, and 10% 325 mesh high-quality coal powder to obtain mixed powder;

[0014] 3. Forming step: put the mixed powder in a ball forming machine, spray the compound powder with 2% modified starch solution to centrifugally roll the compound powder into spherical particles of 1mm-2mm;

[0015] 4. Roasting step: After the spherical particles of the composite powder are naturally dried, they are fired in a kiln at a low temperature of 110°C for 45 minutes, and then fired at a high temperature of 650°C for 150 minutes.

[0016] The beneficial effects of the present invention are:

[0017] Because zeolite has a certain porosity, the specific surface area is large, and the coal powder pore-forming agent internal...

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Abstract

The invention relates to a preparation method of a catalytic oxidizer for meal pollutants in water. The preparation can efficiently and quickly catalyze and oxidize the metal pollutants such as arsenic, ferrum, manganese and hexavalent chromium in the water, and then is adsorbed and filtered in order to realize the purpose of removing the metal pollutants. The preparation method of the catalytic oxidizer for the metal pollutants in the water comprises the following steps: 1) powdering: powdering high-level zeolite to 200 to 325 meshes; 2) mixing: fully mixing 60 to 80% of powdered zeolite, 10 to 20% of iron oxide powder, and 10 to 20% of high-quality coal dust with 200 to 325 meshes, so as to obtain the mixed powder; 3) forming: transferring the mixed powder into a ball forming mill, spraying by 1 to 3% of modified starch solution in order to centrifugally roll the composite powder into spherical particles of 1 to 4mm; and 4) roasting: naturally drying the spherical particles of the composite powder, transferring in a kiln furnace to roast for 30 to 60 minutes at 100 to 120 DEG C, and then roasting for 120 to 150 minutes at high temperature of 600 to 700 DEG C.

Description

technical field [0001] The invention relates to a preparation method of a catalytic oxidation preparation, in particular to a preparation method of a catalytic oxidant for metal pollutants in water. Background technique [0002] At present, there are many catalytic oxidants for water treatment, most of which are preparations for catalytic oxidation of organic pollutants in water, while catalytic oxidation preparations for metal pollutants in water are rare and expensive, which limits their application in water treatment processes. in the application. Contents of the invention [0003] The problem to be solved by the present invention is to provide a method for preparing a catalytic oxidant used for metal pollutants in water. purpose of removal. [0004] The present invention is used for the preparation method of catalytic oxidizer of metal pollutant in water, comprises the following steps: [0005] 1. Grinding step: grind high-grade zeolite to 200-325 mesh; [0006] 2....

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J35/08C02F1/72C02F1/64
Inventor 姜英杰
Owner 姜英杰
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