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Stabilizing agent repairing arsenic-containing waste residues and using method

A stabilization and medicament technology, applied in the field of stabilizing medicaments for the restoration of arsenic-containing waste residues, can solve the problems of uneven mixing, low arsenic fixation rate in soil, affecting the restoration effect of restoration medicaments, etc., and achieves high stabilization efficiency and restoration cycle. short effect

Active Publication Date: 2018-03-13
广西壮族自治区环境监测中心站 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fixation rate of soil arsenic after the treatment of contaminated soil by the repairing agent is not high, especially the effect of the repairing ability of heavily arsenic-polluted soil is not significant
In addition, when the patented restoration agent is used, the soil to be treated and the restoration agent spread on it are stirred and mixed by plowing and stirring; uneven mixing will affect the restoration effect of the restoration agent

Method used

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  • Stabilizing agent repairing arsenic-containing waste residues and using method
  • Stabilizing agent repairing arsenic-containing waste residues and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment 1 stabilizing agent

[0069] The stabilizing agent is prepared from the following raw materials in parts by mass:

[0070] Potassium permanganate 9; sodium persulfate 5; iron sand 3; magnetite powder 9; ferrous sulfate 6; aluminum sulfate 6; Portland cement 9.

[0071] Described preparation method is:

[0072] Take the oxidant, iron-based ore powder, iron salt and / or aluminum salt, and gelling agent in the number of parts by mass, grind them into materials with a particle size of about 200 mesh, and mix them evenly; take a small amount of mixed powder samples, dissolve them, and measure The pH value of the sample solution is adjusted by adding a pH regulator according to the pH value until the desired pH value is reached, and then the stabilizing agent is obtained;

[0073] Wherein, the required pH value is 6-9.

Embodiment 2

[0074] Embodiment 2 stabilizing agent

[0075] The stabilizing agent is prepared from the following raw materials in parts by mass:

[0076] Potassium permanganate 12; Sodium persulfate 7; Iron sand 6; Hematite powder 12; Ferrous sulfate 9; Aluminum sulfate 9; Portland cement 20.

[0077] The preparation method is the same as the preparation method described in Example 1.

Embodiment 3

[0078] Embodiment 3 stabilizing agent

[0079] The stabilizing agent is prepared from the following raw materials in parts by mass:

[0080] Potassium permanganate 10; sodium persulfate 10; hydrogen peroxide 5; iron sand 10; magnetite powder 10; hematite powder 5; iron sulfate 5; iron chloride 10; aluminum chloride 10; active volcanic ash 35.

[0081] The preparation method is the same as the preparation method described in Example 1.

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Abstract

The invention relates to a stabilizing agent repairing arsenic-containing waste residues. The stabilizing agent is mainly prepared by mixing the following raw materials of, by mass, 1-25 parts of oxidizing agent, 1-25 parts of iron ore powder, 1-25 parts of iron salt and / or aluminum salt, 0-15 parts of pH regulator and 0-35 parts of gel agent. The stabilizing agent has a good fixed effect on soilarsenic in treated contaminated soil and particularly has a good repairing effect on the soil which is seriously contaminated by arsenic.

Description

technical field [0001] The invention relates to heavy metal pollution treatment technology, in particular to a stabilizing medicament for repairing arsenic-containing waste residue and a method for using the medicament. Background technique [0002] With the continuous development of the chemical industry, non-ferrous metal mining, smelting industry and electronic industry, the "three wastes" containing arsenic have entered the environment and become an important source of pollution, especially the arsenic-containing industrial wastes are directly stacked in the open air, and are exposed to rainwater leaching and other effects. It will cause serious environmental risks to soil and water bodies, and directly threaten the health of people. At present, the commonly used arsenic pollution control methods mainly include physical chemical remediation and biological remediation methods, such as landfill method, plant absorption, leaching (washing) method, alien soil method, solidif...

Claims

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Application Information

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IPC IPC(8): A62D3/38C09K17/10C09K17/08B01J20/24B01J20/30A62D101/43
CPCA62D3/38A62D2101/43B01J20/043B01J20/08B01J20/14B01J20/24C09K17/08C09K17/10
Inventor 刘俐黎宁秦旭芝邓敏军邓超冰杨海菊
Owner 广西壮族自治区环境监测中心站
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