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Heavy metal chelating agent

A technology of heavy metal scavenger and raw material, which is applied in the fields of adsorption water/sewage treatment, water pollutants, water/sewage treatment, etc. It can solve the problems of inability to remove metal ions and the removal of metal ions is not thorough enough, and achieve fast solid-liquid separation and good storage. Effects of stability and operational safety, good capture capacity

Inactive Publication Date: 2015-10-07
东莞市卓越环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these heavy metal scavengers are not thorough enough to remove metal ions, especially Cd cannot be removed at the same time as other heavy metals. 2+ and Cr 6+ These two metal ions

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] A heavy metal scavenger comprises 10 kg of sodium silicate, 30 kg of organic sulfide, 10 kg of sodium hydrosulfide, 5 kg of sodium aluminate and 45 kg of water.

[0022] The preparation method is that the above-mentioned amount of sodium silicate, organic sulfide, sodium hydrosulfide, sodium aluminate and water are mixed, stirred evenly at 45°C, and packaged. When used, the dosage is 30ppm.

Embodiment 2

[0024] A heavy metal scavenger comprises 15 kg of sodium silicate, 35 kg of organic sulfide, 15 kg of sodium hydrosulfide, 8 kg of sodium aluminate and 37 kg of water.

[0025] The preparation method is that the above-mentioned amount of sodium silicate, organic sulfide, sodium hydrosulfide, sodium aluminate and water are mixed, stirred evenly at 40°C, and packaged. When used, the dosage is 20ppm.

Embodiment 3

[0027] A heavy metal scavenger comprises 15 kilograms of sodium silicate, 25 kilograms of organic sulfide, 5 kilograms of sodium hydrosulfide, 2 kilograms of sodium aluminate and 53 kilograms of water.

[0028] The preparation method is that the above-mentioned amount of sodium silicate, organic sulfide, sodium hydrosulfide, sodium aluminate and water are mixed, stirred evenly at 50°C, and packaged. When used, the dosage is 50ppm.

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Abstract

The invention belongs to the technical field of sewage disposal, and particularly relates to a heavy metal chelating agent. The heavy metal chelating agent comprises, by weight, 5-15 parts of sodium silicate, 25-35 parts of organic sulfides, 5-15 parts of sodium hydrosulfide, 2-8 parts of sodium aluminate and 32-60 parts of water. The materials have strong ion-exchange capacity and carry out a synergistic effect to show gathering capacity on heavy metal ions; the sediment is carried out rapidly, and after sewage is disposed, the solid-liquid separation is rapid, simple and convenient; the preparation technology is simple, and the operation is easy. The heavy metal chelating agent can effectively react with heavy metal chemically to produce an insoluble substance, and the chelating agent can nearly absorb all kinds of the heavy metal.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a heavy metal scavenger. Background technique [0002] With the development of science and technology, the amount of industrial sewage containing heavy metal ions is also increasing, and the pollution of the environment is becoming more and more serious. Sewage containing heavy metal ions mainly comes from mechanical processing, mining, metal smelting, electronics industry and some chemical industries. When the human body ingests excessive heavy metals, the heavy metals will accumulate in the body, causing acute or chronic poisoning. For example, an excess of metallic copper can lead to jaundice, pancreatitis, red blood cell poisoning, esophageal problems, and anemia. Excessive lead can cause kidney disease, neuralgia, leprosy, etc. Excessive arsenic can lead to neuritis, acute poisoning and even death. Excessive cadmium can lead to bone deformation, low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/28C02F1/62C02F101/20
Inventor 关海东谢玉兰
Owner 东莞市卓越环保科技有限公司
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