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Remover for deep removal of arsenic and cadmium ions in waste water and preparation method of remover

A technology of cadmium ion and remover, which is applied in the direction of chemical instruments and methods, water pollutants, and other chemical processes, can solve the problems of poor treatment effect, high cost of chemicals, high treatment cost, etc., and achieve low cost and convenient precipitation and separation , high adsorption efficiency

Inactive Publication Date: 2019-10-25
合山市春旭环保科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defects of high treatment cost, poor treatment effect and high cost of chemicals used in the existing removal of arsenic and cadmium ions in wastewater, the present invention provides a method for deep removal of arsenic and cadmium ions in wastewater. Heavy metal remover and preparation method thereof

Method used

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  • Remover for deep removal of arsenic and cadmium ions in waste water and preparation method of remover

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Effect test

Embodiment 1

[0043] A remover for deep removal of arsenic and cadmium ions in wastewater, prepared from the following components in parts by weight: 6 parts of magnetic biochar, 2 parts of chitosan, 2 parts of protein, 2 parts of glutaraldehyde;

[0044] The preparation method of the described remover that is used for the deep removal of arsenic in waste water, cadmium ion may further comprise the steps:

[0045] (1) According to the ratio of parts by weight, 2 parts of chitosan were dissolved in 4 parts of acetic acid solution with a mass fraction of 2%, and stirred at 40°C until the chitosan was completely dissolved to obtain a chitosan solution;

[0046] (2) Add 6 parts of magnetic biochar to the chitosan solution, and stir for 60 minutes in a water bath at 60°C to obtain a mixed solution;

[0047] (3) Dissolve 2 parts of rice dreg protein in deionized water according to the solid-to-liquid ratio of 1:2 to obtain a protein solution, then add the protein solution to the mixture, stir at ...

Embodiment 2

[0061] A remover for deep removal of arsenic and cadmium ions in wastewater, prepared from the following components in parts by weight: 20 parts of magnetic biochar, 5 parts of chitosan, 5 parts of protein, and 5 parts of glutaraldehyde;

[0062] The preparation method of the described remover that is used for the deep removal of arsenic in waste water, cadmium ion may further comprise the steps:

[0063] (1) Dissolve 5 parts of chitosan in 10 parts of acetic acid solution with a mass fraction of 2% according to the ratio of parts by weight, and stir at 40°C until the chitosan is completely dissolved to obtain a chitosan solution;

[0064] (2) Add 20 parts of magnetic biochar to the chitosan solution, and stir for 120 minutes in a water bath at 80°C to obtain a mixed solution;

[0065] (3) Dissolve 5 parts of rice protein in deionized water at a solid-to-liquid ratio of 1:2 to obtain a protein solution, then add the protein solution to the mixture, stir at 60°C for 80 minutes,...

Embodiment 3

[0079] A remover for deep removal of arsenic and cadmium ions in wastewater, prepared from the following components in parts by weight: 16 parts of magnetic biochar, 4 parts of chitosan, 2 parts of protein, and 3 parts of glutaraldehyde;

[0080] The preparation method of the described remover that is used for the deep removal of arsenic in waste water, cadmium ion may further comprise the steps:

[0081] (1) Dissolve 4 parts of chitosan in 8 parts of acetic acid solution with a mass fraction of 2% according to the ratio of parts by weight, and stir at 40°C until the chitosan is completely dissolved to obtain a chitosan solution;

[0082] (2) Add 16 parts of magnetic biochar to the chitosan solution, and stir in a water bath at 65°C for 90 minutes to obtain a mixed solution;

[0083] (3) Dissolve 2 parts of rice dreg protein in deionized water according to the solid-to-liquid ratio of 1:2 to obtain a protein solution, then add the protein solution to the mixture, stir at 50°C ...

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Abstract

The invention provides a heavy metal remover for deep removal of arsenic and cadmium ions in waste water. The heavy metal remover is prepared from the components of magnetic biochar, chitosan, proteinand glutaraldehyde. The heavy metal remover is a gel remover prepared with the magnetic biochar as a carrier and loaded with the chitosan and the protein. The heavy metal remover is magnetic and is convenient to separate in the precipitation. The crosslinking of the chitosan and protein improves the stability of the remover so that the remover can absorb arsenic and cadmium in a high concentration wastewater environment. After the crosslinking of the chitosan and protein, more hydroxyl and carboxyl groups are combined with metal ions, and the removal efficiency of heavy metals is improved. According to the heavy metal remover for deep removal of the arsenic and cadmium ions in waste water, the waste is taken as the raw material to prepare the high-efficiency heavy metal remover which is safe and environmentally friendly, the utilization rate of the material is improved, and the heavy metal remover is conducive to the sustainable development, and has a good prospect.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, in particular to a heavy metal remover used for the deep removal of arsenic and cadmium ions in waste water. Background technique [0002] Arsenic, cadmium and their compounds are highly toxic, cannot be discharged in time after entering the human body, have a long existence period, and will be enriched in various tissues and organs, which is very harmful to the human body. With the vigorous development of industrial technology, the continuous growth of wastewater discharge has become one of the biggest pollution problems in my country. Wastewater containing arsenic and cadmium comes from a wide range of sources, and has high acidity, complex components, and corrosive effects, making treatment difficult and costly. . [0003] Invention patent ZL201310325824.1, a nano-adsorbent for removing arsenic, antimony, and fluorine in wastewater and its preparation method and regeneration meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/06B01J20/20B01J20/24B01J20/28009C02F1/283C02F1/286C02F1/288C02F2101/20
Inventor 韦明
Owner 合山市春旭环保科技有限责任公司
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