Heavy metal contaminated soil restoration material

A soil remediation and heavy metal technology, applied in the field of soil remediation, can solve problems such as the inability to completely eliminate soil heavy metals, and achieve the effect of mild working conditions and good degradation effect.

Inactive Publication Date: 2016-11-09
战锡林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The above-mentioned remediation methods for soil contaminated by heavy metals may not completely eliminate the heavy metals in the soil, or bring new pollutants, and there are various defects. Therefore, it is necessary to explore a heavy metal removal effect for the above-mentioned status quo. Good and mild soil remediation material that does not generate new pollution

Method used

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  • Heavy metal contaminated soil restoration material
  • Heavy metal contaminated soil restoration material
  • Heavy metal contaminated soil restoration material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Take soil samples polluted by heavy metals. After testing, the lead content in the soil is 380mg / kg; the chromium content is 282mg / kg; the mercury content is 0.85mg / kg, and the cadmium content is 0.78mg / kg;

[0061] Get the soil restoration material according to the ratio of 48 grams of soil restoration material per 1000 grams of soil sample;

[0062] Add the following raw materials to the soil sample: chitosan, bentonite, Dunaliella, oxalic acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed shell, moss aspergillus, betel nut wood chips, palm wood chips;

[0063] The parts by weight of each raw material are as follows:

[0064]

[0065] Mix well and keep for 48 hours;

[0066] Chitosan used in the present invention, enzyme and microbial bacterium powder are all derived from commercially available;

[0067] Dunaliella is dried and pulverized algal powder with a water content of about 3%;

[0068] Corn cobs are dried and crushed granules with a ...

Embodiment 2

[0103] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove heavy metals in the soil sample, the difference is that the parts by weight of the soil repair material etc. are different;

[0104]

[0105] Compound enzyme preparation 0.001;

[0106] The compound enzyme preparation is composed of laccase, catalase and urease;

[0107] The enzyme activity of laccase is 5.4×10 5 U / g, catalase activity is 18.3×10 5 U / g, urease activity is 8.9×10 5 U / g;

[0108] Compound microbial agent 0.005;

[0109] The active ingredients of the above-mentioned composite microbial agent are composed of Bacillus thuringiensis powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, Trichoderma chrysanthemum composed of powder;

[0110] The weight ratio of the above-mentioned Bacillus thuringiensis bacterial powder, Pseudomonas fluorescens bacterial powder, salt-tolerant ye...

Embodiment 3

[0119] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove heavy metals in the soil sample, the difference is that the parts by weight of the soil repair material etc. are different;

[0120]

[0121] Compound enzyme preparation 0.02;

[0122] The compound enzyme preparation is laccase, catalase and urease;

[0123] The enzyme activity of laccase is 5.4×10 5 U / g, catalase activity is 18.3×10 5 U / g, urease activity is 8.9×10 5 U / g;

[0124] Composite microbial agent 0.048;

[0125] The active ingredients of the compound microbial agent are composed of Bacillus thuringiensis powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, and Trichoderma chrysanthemum powder. composition;

[0126] The weight ratio of Bacillus thuringiensis powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing b...

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Abstract

The invention belongs to the technical field of soil restoration and particularly relates to a heavy metal contaminated soil restoration material. The heavy metal contaminated soil restoration material is composed of chitosan, bentonite, Dunaliella, oxalic acid, shell powder, flammulina velutipes fermented bran, corncobs, rice bran, tea seed shells, dicranum scoparium, areca wood chips, palm wood chips, a compound enzyme preparation and a compound microorganism agent. By the adoption of the soil restoration material, mild enzymes and microorganism strains are adopted for treating soil under the condition of not introducing other chemical solvents, new contamination is not brought in, and action conditions are mild.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a remediation material for heavy metal polluted soil. Background technique [0002] The heavy metals mentioned in terms of environmental pollution mainly refer to mercury, arsenic, lead, chromium, cadmium, etc. These heavy metals pollute the soil, which not only leads to a decrease in soil productivity and food production, but also accumulates in plants and animals and enters the food chain. Or enter the human respiratory tract through polluted air, and interact strongly with proteins, enzymes, etc. after entering the human body, making them inactive, and may also accumulate in some organs of the human body and endanger health. [0003] The main sources of soil heavy metal pollution are industrial pollution sources, agricultural pollution sources and transportation. Due to the intensification of industrial production and mining development and the increasing...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/10C09K101/00
CPCC09K17/40B09C1/105C09K2101/00
Inventor 战锡林
Owner 战锡林
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