Composite for treating heavy metal waste water

A composite material and wastewater treatment technology, applied in water/sewage treatment, adsorbed water/sewage treatment, reduced water/sewage treatment, etc., can solve the problems of low adsorption capacity, cumbersome operation, large dosage, etc., and achieve strong adsorption capacity and Reducing ability, strong ability to reduce heavy metals, and fast reaction rate

Inactive Publication Date: 2017-05-31
宁波华九文化传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Aiming at heavy metal pollution, people have developed a variety of water treatment methods, such as chemical precipitation, ferrite, adsorption, ion exchange, electrolysis, reverse osmosis, electrodialysis, enhanced ultrafiltration, biological methods, etc. There are some shortcomings and deficiencies: (1) Some treatment costs are high, such as enhanced ultrafiltration, electrodialysis, chelation precipitation in chemical precipitation, ion exchange, etc.; (2) Some processes are complex and cumbersome to operate, Such as ferrite method, enhanced ultraf

Method used

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  • Composite for treating heavy metal waste water
  • Composite for treating heavy metal waste water

Examples

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Effect test

Embodiment 1

[0021] A composite material for heavy metal wastewater treatment, which is composed of the following raw materials in parts by weight: 20 parts of ordinary soil, 15 parts of limestone, 10 parts of zeolite powder, 20 parts of mesoporous molecular sieves, 40 parts of ethylenediaminetetraacetic acid metal sodium salt, 70 parts of sodium chloride, 30 parts of magnesium chloride.

[0022] The preparation method of the composite material for the treatment of heavy metal wastewater, the specific steps are as follows:

[0023] (1) take each raw material according to parts by weight;

[0024] (2) Dissolve ethylenediaminetetraacetic acid metal sodium salt in deionized water at a mass ratio of 1:1 to prepare a ethylenediaminetetraacetic acid metal sodium salt solution, and then impregnate mesoporous molecular sieves into ethylenediaminetetraacetic acid sodium metal salt Immerse in the salt solution for 10 hours, so that the ethylenediaminetetraacetic acid metal sodium salt solution is s...

Embodiment 2

[0030] A composite material for heavy metal wastewater treatment, which is composed of the following raw materials in parts by weight: 25 parts of ordinary soil, 20 parts of limestone, 15 parts of zeolite powder, 30 parts of mesoporous molecular sieve, 50 parts of ethylenediaminetetraacetic acid metal sodium salt, 75 parts of sodium chloride, 40 parts of magnesium chloride.

[0031] The preparation method of the composite material for the treatment of heavy metal wastewater, the specific steps are as follows:

[0032] (1) take each raw material according to parts by weight;

[0033] (2) Dissolve ethylenediaminetetraacetic acid metal sodium salt in deionized water at a mass ratio of 1.2:1 to prepare a ethylenediaminetetraacetic acid metal sodium salt solution, and then impregnate mesoporous molecular sieves into ethylenediaminetetraacetic acid sodium metal salt Immerse in the salt solution for 12 hours, so that the ethylenediaminetetraacetic acid metal sodium salt solution is ...

Embodiment 3

[0039]A composite material for heavy metal wastewater treatment, which is composed of the following raw materials in parts by weight: 30 parts of ordinary soil, 25 parts of limestone, 20 parts of zeolite powder, 40 parts of mesoporous molecular sieve, 60 parts of ethylenediaminetetraacetic acid metal sodium salt, 80 parts of sodium chloride, 50 parts of magnesium chloride.

[0040] The preparation method of the composite material for the treatment of heavy metal wastewater, the specific steps are as follows:

[0041] (1) take each raw material according to parts by weight;

[0042] (2) Dissolve metal sodium salt of ethylenediaminetetraacetic acid in deionized water at a mass ratio of 1.5:1 to prepare a sodium metal salt solution of ethylenediaminetetraacetic acid, and then impregnate mesoporous molecular sieves into sodium metal ethylenediaminetetraacetic acid Immerse in the salt solution for 14 hours, so that the ethylenediaminetetraacetic acid metal sodium salt solution is ...

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Abstract

The invention discloses a composite for treating heavy metal waste water. The composite for treating the heavy metal waste water is prepared from, by weight, 20-30 parts of common soil, 15-25 parts of limestone, 10-20 parts of zeolite powder, 20-40 parts of mesoporous molecular sieve, 40-60 parts of ethylenediamine tetraacetic acid metal sodium salt, 70-80 parts of sodium chloride and 30-50 parts of magnesium chloride. Through the combined action of a porous structure prepared from the common soil, the limestone, the zeolite powder and the mesoporous molecular sieve, a prepared adsorption material has high adsorption capacity and reducing capacity, multiple heavy metal ions, such as lead ions, cadmium ions and chromium ions, in water can be efficiently removed, the advantages of being high in removal rate and high in reaction speed are achieved, the adsorption material is loaded with zinc ions and magnesium ions, a synergistic effect is achieved, the capacity of reducing heavy metals is higher, and deep removal can be achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a composite material for heavy metal wastewater treatment. Background technique [0002] Heavy metals cannot be degraded by microorganisms, can be enriched in organisms and cause significant toxic effects, and are persistent pollutants. For example, mercury, cadmium, chromium, lead, arsenic, etc. seriously endanger human health, damage aquatic ecosystems, reduce agricultural and fishery production, etc., causing huge economic losses and becoming a major problem restricting my country's economic and social development and improving people's livelihood. Aiming at heavy metal pollution, people have developed a variety of water treatment methods, such as chemical precipitation, ferrite, adsorption, ion exchange, electrolysis, reverse osmosis, electrodialysis, enhanced ultrafiltration, biological methods, etc. There are some shortcomings and deficiencies: (1) Some treatment ...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/28C02F1/70C02F101/20C02F101/22
CPCC02F1/00C02F1/28C02F1/281C02F1/70C02F2101/20C02F2101/22
Inventor 陶宏
Owner 宁波华九文化传媒有限公司
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