Method for preparing aluminum-iron-carbon micro-electrolysis filler

A technology based on aluminum, iron and carbon, which is applied in the field of new materials for wastewater treatment, can solve the problems of limited removal capacity, low micro-electrolysis potential, and improvement of reduction and oxidation capacity, and achieve the effect of shortening the reaction time and wide application range

Inactive Publication Date: 2016-12-07
浙江合众环保科技有限公司
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Problems solved by technology

Physicochemical coagulation treatment has limited ability to remove pollution factors. It mainly removes colloidal substances, tiny particles and suspended solids in water, but water-soluble organic substances cannot be removed; iron-carbon micro-electrolysis has been widely used in the pretreatment of high-concentration and refractory wastewater , not only can greatly reduce COD, but also increase the B / C ratio; but the reduction of iron materials is relatively weak, so there is a problem that the micro-electrolysis potential is relatively low, and the reduction and oxidation ability needs to be improved

Method used

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  • Method for preparing aluminum-iron-carbon micro-electrolysis filler

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Effect test

Embodiment 1

[0022] Weigh 1000g of fine iron powder and 200g of coal coke powder with a total iron content of 54%, mix them evenly with a mixer, send them to a reduction furnace for calcination at 500°C, and perform a reduction reaction for 1 hour, take them out after cooling, and use a mechanical pulverizer to obtain Crush the high-carbon iron to about 20 mesh for later use; take 800g of aluminum ingot, put it into the melting furnace, pass helium gas as a protective gas during the melting process, heat up to about 670°C to melt the aluminum ingot, and add the prepared 20 mesh 900g of high-carbon iron powder, mixed evenly, and cooled naturally for about 10 minutes to obtain an aluminum-iron-carbon microporous block, the density of which was taken out was about 1.8g / cm 3 . The aluminum-iron-carbon microporous block is first cut into strips, and then cut into cube-shaped fillers with a length of about 3.0 cm, which is the finished aluminum-iron-carbon micro-electrolytic filler (a). The com...

Embodiment 2

[0024] Weigh 1000g of fine iron powder and 400g of coal coke powder with a total iron content of 60%, mix them evenly with a stirrer, send them into a reduction furnace for calcination at 300°C, and perform a reduction reaction for 1.5 hours, take them out after cooling, and use a mechanical pulverizer to obtain crush the high-carbon iron into about 50 mesh for later use; take 1200g of aluminum ingot, put it into the melting furnace, pass helium gas as a protective gas during the melting process, heat up to about 665°C to melt the aluminum ingot, and add the prepared 50 mesh 2400g of high-carbon iron powder, mixed evenly, and cooled naturally for about 20 minutes to obtain an aluminum-iron-carbon microporous block, the density of which was taken out was about 1.5g / cm 3 . The aluminum-iron-carbon microporous block is first cut into strips, and then cut into cube-shaped fillers with a length of about 8.0 cm, which is the finished aluminum-iron-carbon micro-electrolytic filler (b...

Embodiment 3

[0026] Weigh 1000g of fine iron powder and 800g of coal coke powder with a total iron content of 64%, mix them evenly with a stirrer, send them into a reduction furnace for calcination at 1000°C, and perform a reduction reaction for 0.5 hours, take them out after cooling, and use a mechanical pulverizer to obtain crush the high-carbon iron to about 80 mesh for later use; take 3000g of aluminum ingot, put it into the melting furnace, pass helium gas as a protective gas during the melting process, heat up to about 661°C to melt the aluminum ingot, and add the prepared 80 mesh 1500g of high-carbon iron powder, mixed evenly, and cooled naturally for about 30 minutes to obtain an aluminum-iron-carbon microporous block, the density of which was taken out was about 1.1g / cm 3 . The aluminum-iron-carbon microporous block is first cut into strips, and then continued to be cut into cube-shaped fillers with a length of about 12.0 cm, which is the finished aluminum-iron-carbon micro-electr...

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Abstract

The invention discloses a method for preparing aluminum-iron-carbon micro-electrolysis filler. The method includes the following steps that 1, fine iron powder and coal coke powder are mixed; 2, the mixture is calcined to obtain high-carbon iron; 3, the high-carbon iron is smashed into fine particles; 4, an aluminum ingot is melted in protective gas; 5, the melted aluminum ingot and the high-carbon iron powder are jointly mixed in the protective gas, the mixture is cooled and coagulated, and an aluminum-iron-carbon micro-pore block is formed; 6, the aluminum-iron-carbon micro-pore block is cut ready for use. By means of the method, the reduction potential is improved, the removing rate of COD is increased, reaction time is shortened, and the pH application range is wide.

Description

technical field [0001] The invention belongs to the field of new waste water treatment materials, and in particular relates to a preparation method of aluminum-iron-carbon micro-electrolysis filler. Background technique [0002] Industrial wastewater such as medicine, chemical industry, and synthetic materials is a kind of high-difficulty and difficult-to-biochemical high-concentration wastewater. It has poor biodegradability and contains a large amount of toxic and harmful substances, so it cannot be directly biochemically treated. It can only be carried out after necessary physical and chemical treatment. biochemical treatment. Most of the industrial wastewater such as medicine, chemical industry, and synthetic materials contains polymer double bonds, polyphenyl rings, heterocycles, nitro groups, sulfonic acid groups, carbon-nitrogen double bonds, carbon-nitrogen triple bonds, carbonyl groups, aldehyde groups and other groups. It may have a hydrophilic group itself or be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
CPCC02F1/46104
Inventor 黄伟农费凡费雄略任海博蔡樱英俞俐珍王贤斌
Owner 浙江合众环保科技有限公司
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