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Composite heavy metal adsorption material based on volcanic ash and preparation method of same

A composite adsorption material and volcanic ash technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problem that the adsorption capacity is difficult to meet the requirements of heavy metal pollution treatment, the pore volume and specific surface area are low, and the ion Small exchange capacity and other issues, to achieve the effect of important market value and social value, simple raw materials, and easy industrial production

Inactive Publication Date: 2017-04-05
ZHENGZHOU YUANRAN BIOLOGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the typical pore structure of volcanic ash is capillary pores with parallel walls and slits, the pores are distributed in a wide range, mainly macropores and micropores, but the number is small, the pore volume and specific surface area are low, and the ion exchange capacity is small , the adsorption capacity is difficult to meet the requirements for direct use in the treatment of heavy metal pollution

Method used

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  • Composite heavy metal adsorption material based on volcanic ash and preparation method of same
  • Composite heavy metal adsorption material based on volcanic ash and preparation method of same
  • Composite heavy metal adsorption material based on volcanic ash and preparation method of same

Examples

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Effect test

Embodiment 1

[0025] A heavy metal composite adsorption material based on volcanic ash, made of the following raw materials in parts by weight: 32 parts of volcanic ash, 8 parts of chitosan, 5 parts of cetyl ammonium bromide, 3 parts of aluminum chloride, 2 parts of urea , 1 part of 11-carbonyl-β-boswellic acid.

[0026] In the present embodiment, the preparation method of the heavy metal composite adsorption material based on volcanic ash, the steps are as follows:

[0027] 1) take volcanic ash and chitosan, put into the ultrafine pulverizer, carry out ultrafine pulverization, then cross 400 mesh sieves, obtain ultrafine powder;

[0028] 2) Weighing urea, grinding and mixing the urea and ultrafine powder evenly to obtain the first mixture;

[0029] 3) Stir and mix the first mixture at 135°C for 30 minutes, then cool naturally to obtain the second mixture;

[0030] 4) Weigh cetyl ammonium bromide, add 10 times the weight of deionized water, and stir and mix at 50° C. for 30 minutes to obt...

Embodiment 2

[0035] A heavy metal composite adsorption material based on volcanic ash, made of the following raw materials in parts by weight: 33 parts of volcanic ash, 11 parts of chitosan, 6 parts of cetyl ammonium bromide, 4 parts of aluminum chloride, and 4 parts of urea , 2.7 parts of 11-carbonyl-β-boswellic acid.

[0036] In the present embodiment, the preparation method of the heavy metal composite adsorption material based on volcanic ash, the steps are as follows:

[0037] 1) take volcanic ash and chitosan, put into the ultrafine pulverizer, carry out ultrafine pulverization, then cross 400 mesh sieves, obtain ultrafine powder;

[0038] 2) Weighing urea, grinding and mixing the urea and ultrafine powder evenly to obtain the first mixture;

[0039] 3) Stir and mix the first mixture at 137°C for 35 minutes, then cool naturally to obtain the second mixture;

[0040] 4) Weigh cetyl ammonium bromide, add 11 times the weight of deionized water, and stir and mix at 53°C for 40 minutes ...

Embodiment 3

[0045] A heavy metal composite adsorption material based on volcanic ash, made of the following raw materials in parts by weight: 35 parts of volcanic ash, 10 parts of chitosan, 7 parts of cetyl ammonium bromide, 4 parts of aluminum chloride, 3.5 parts of urea , 1.9 parts of 11-carbonyl-β-boswellic acid.

[0046] In the present embodiment, the preparation method of the heavy metal composite adsorption material based on volcanic ash, the steps are as follows:

[0047] 1) take volcanic ash and chitosan, put into the ultrafine pulverizer, carry out ultrafine pulverization, then cross 500 mesh sieves, obtain ultrafine powder;

[0048] 2) Weighing urea, grinding and mixing the urea and ultrafine powder evenly to obtain the first mixture;

[0049] 3) Stir and mix the first mixture at 138°C for 35 minutes, then cool naturally to obtain the second mixture;

[0050] 4) Weigh cetyl ammonium bromide, add 12 times the weight of deionized water, and stir and mix at 55° C. for 35 minutes ...

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Abstract

The invention discloses a composite heavy metal adsorption material based on volcanic ash, which is prepared from, by weight, 32-37 parts of volcanic ash, 8-12 parts of chitosan, 5-8 parts of cetyl ammonium bromide, 3-6 parts of aluminum chlorohydrate, 2-5 parts of urea, and 1-3 parts of 11-carbonyl-[beta]-masticinic acid. The invention also discloses a preparation method of such composite heavy metal adsorption material based on volcanic ash. With the volcanic ash as a main raw material, the composite heavy metal adsorption material has excellent adsorption effect on heavy metals, and the adsorption performance is better than that of modified volcanic ash in the prior art. The material has important market value and social value.

Description

technical field [0001] The invention relates to the technical field of heavy metal treatment, in particular to a volcanic ash-based heavy metal composite adsorption material and a preparation method thereof. Background technique [0002] In recent years, wastewater containing heavy metals has caused great harm to the living environment of human beings. Heavy metal ions are discharged with wastewater. Even if the concentration is small, they can cause public nuisance, seriously pollute the environment, and affect people's health. Therefore, it is of great significance to study how to reduce the content of heavy metals in wastewater and reduce the pollution of heavy metals to the environment. At present, there are three main methods for removing heavy metals in wastewater: one is to remove heavy metal ions in wastewater through chemical reactions; the other is to adsorb, concentrate and separate heavy metals in wastewater without changing their chemical forms. method; the thi...

Claims

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Application Information

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IPC IPC(8): B01J20/24C02F1/28C02F1/62C02F101/20
CPCB01J20/24B01J20/0248B01J20/0288B01J20/08B01J20/103B01J20/22B01J2220/46C02F1/28C02F1/281C02F1/285C02F1/286C02F2101/20
Inventor 不公告发明人
Owner ZHENGZHOU YUANRAN BIOLOGY TECH CO LTD
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