Repair agent for treating heavy metal contaminated soil and application thereof

A technology for polluted soil and remediation agent, applied in the field of remediation agent for treating heavy metal contaminated soil, can solve the problems of lack of special treatment agent and poor effect, and achieve the effects of stable structure, significant economic benefit and wide range of functions.

Inactive Publication Date: 2017-05-24
ZHENJIANG HUAYU ENVIRONMENTAL PROTECTION EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to solve the problem that the common treatment method for heavy metal-contaminated soil in the prior art is not effective and the special treatment agent is lacking, the present invention proposes a treatment and repair function, which is easy to use and low in cost. Remediation agent for heavy metal polluted soil and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A restoration agent for treating heavy metal-contaminated soil, comprising the following components by weight: 18 parts of crushed straw, 3 parts of modified lignin, 12 parts of peat, 6 parts of leguminous plant root, stem, leaf and shell waste, 13 parts of kaolin, 13 parts of hypochlorite, 3 parts of calcium hydroxide, 4 parts of mercapto resin, 1 part of decolorizer, 5 parts of biological enzyme, 16 parts of microbial bacteria, 3 parts of edible fungus residue;

[0019] Among them, the microbial bacteria include Arthrobacter, Gibberella and Bacillus subtilis with a mass ratio of 2:6:3, and each gram of culture medium of a single species of bacteria contains no less than 200 million active bacteria; Crop stalks of grass seeds; the modified lignin is modified by pickling; the decolorizer is a mixture of anhydrous aluminum sulfate, granular activated carbon, and bentonite in a mass ratio of 2:1:2; The leguminous plant rhizome leaf shell waste is selected from leguminous ...

Embodiment 2

[0022] A restoration agent for treating heavy metal-contaminated soil, comprising the following components by weight: 25 parts of crushed straw, 9 parts of modified lignin, 18 parts of peat, 12 parts of leguminous plant rhizome and leaf shell waste, 18 parts of kaolin, 15 parts of hypochlorite, 6 parts of calcium hydroxide, 9 parts of mercapto resin, 1-5 parts of decolorizer, 10 parts of biological enzyme, 25 parts of microbial bacteria, 5 parts of edible fungus residue;

[0023] Among them, the microbial bacteria include Arthrobacter, Gibberella and Bacillus subtilis with a mass ratio of 2:6:3, and each gram of culture medium of a single species of bacteria contains no less than 200 million active bacteria; Crop stalks of grass seeds; the modified lignin is modified by pickling; the decolorizer is a mixture of anhydrous aluminum sulfate, granular activated carbon, and bentonite in a mass ratio of 2:1:2; The leguminous plant rhizome leaf shell waste is selected from leguminous...

Embodiment 3

[0026] A restoration agent for treating heavy metal-contaminated soil, comprising the following components by weight: 22 parts of crushed straw, 6 parts of modified lignin, 15 parts of peat, 9 parts of leguminous plant root, stem, leaf and shell waste, 15 parts of kaolin, 14 parts of hypochlorite, 5 parts of calcium hydroxide, 7 parts of mercapto resin, 3 parts of decolorizer, 8 parts of biological enzyme, 20 parts of microbial bacteria, 4 parts of edible fungus residue;

[0027] Among them, the microbial bacteria include Arthrobacter, Gibberella and Bacillus subtilis with a mass ratio of 2:6:3, and each gram of culture medium of a single species of bacteria contains no less than 200 million active bacteria; Crop stalks of grass seeds; the modified lignin is modified by pickling; the decolorizer is a mixture of anhydrous aluminum sulfate, granular activated carbon, and bentonite in a mass ratio of 2:1:2; The leguminous plant rhizome leaf shell waste is selected from the waste ...

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PUM

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Abstract

The invention discloses a repair agent for treating heavy metal contaminated soil and an application thereof. Proper wastes of straw crushed matters, turf, modified lignin and roots, stems, leaves and shells of leguminous plants are selected according to the characteristics of the heavy metal contaminated soil, and a chemical adsorbent and a microbial inoculant are optimized and combined. Firstly, the wastes of straw crushed matters, turf, modified lignin and roots, stems, leaves and shells of leguminous plants are separated under the action of other chemical agents; by combining the auxiliary coordinating action of the chemical adsorbent and assisting available matters and excretions thereof generated by microorganisms in the growing process, a matrix and a raw material growing each other are formed; and a microbial community which is complex in composition, stable in structure and wide in function and contains various bacteria is formed through symbiotic and proliferative relationship. The microorganisms in a purifying process of the soil containing heavy metals benefit each other to exert the maximum combined advantages, so that the repair agent has an efficient treatment effect and is low in cost and obvious in economical benefit.

Description

technical field [0001] The invention relates to a soil pollution remediation aid, in particular to a remediation agent for treating heavy metal polluted soil and its application. Background technique [0002] Heavy metal pollution refers to environmental pollution caused by heavy metals or their compounds, mainly caused by human factors such as mining, waste gas discharge, sewage irrigation and the use of heavy metal products. Heavy metals are not easy to move and dissolve, and cannot be excreted after entering the organism, which will cause chronic poisoning. Different from the pollution of other organic compounds, heavy metals are enriched, and heavy metal pollution is difficult to degrade naturally. For example, heavy metals such as lead and cadmium enter the soil environment, which will accumulate for a long time and destroy the self-purification ability of the soil, making the soil a "reservoir of pollutants." ". Planting crops on this kind of land, heavy metals can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/08B09C1/10
CPCC09K17/40B09C1/08B09C1/105
Inventor 张瑜
Owner ZHENJIANG HUAYU ENVIRONMENTAL PROTECTION EQUIP MFG
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