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Method for remedying heavy metal contaminated soil

A technology for polluted soil and heavy metals, applied in the field of soil remediation, can solve the problems of high remediation cost and complicated operation

Inactive Publication Date: 2016-02-03
苗庆龄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although there are many methods of mainstream soil remediation technology, they all have defects, such as complicated operation and high repair cost. Therefore, it is still necessary to research and invent a simpler and more effective soil remediation method.

Method used

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  • Method for remedying heavy metal contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 The method of comprehensively utilizing biochemical resources to remediate heavy metal-contaminated soil includes three processes: pesticide spraying, earthworm enrichment and remediation, and microbial decomposition. The insecticide is prepared from the following materials, all in parts by mass: 280kg of organic fertilizer, 28kg of microbial agent, 0.05kg of pyrethrum, 0.03kg of deervine and 0.02kg of Bacillus thuringiensis powder.

[0031] The preparation technology of described insecticide is:

[0032] ① Put the organic fertilizer on a sterile plastic film, spread it flat, cover it with a sterile plastic film for ultraviolet sterilization for 1 day, remove the film, put it in a cool place, add microbial agents and mix well for later use;

[0033] ②Put pyrethrum and deer vine in a non-iron container, soak in warm water at a temperature of 10-20°C for 30 minutes. Boil for 30 minutes, let stand for 5 hours, and take the supernatant for later use;

[0034] ...

Embodiment 2

[0040] Example 2 The method of comprehensively utilizing biochemical resources to remediate heavy metal-contaminated soil includes three processes: pesticide spraying, earthworm enrichment and remediation, and microbial decomposition. The insecticide is prepared from the following materials, all in parts by mass: 320kg of organic fertilizer, 32kg of microbial agent, 0.1kg of pyrethrum, 0.09kg of deervine and 0.06kg of Bacillus thuringiensis powder.

[0041] The preparation technology of described insecticide is:

[0042] ① Put the organic fertilizer on a sterile plastic film, spread it flat, cover it with a sterile plastic film for ultraviolet sterilization for 5 days, remove the film, put it in a cool place, add microbial agents and mix well for later use;

[0043] ②Put pyrethrum and deer vine in a non-iron container, soak in warm water at a temperature of 10-20°C for 30 minutes, the water consumption is 5 times the weight of the raw materials, put it on a smokeless stove, ...

Embodiment 3

[0051] Example 3 The method of comprehensively utilizing biochemical resources to remediate heavy metal-contaminated soil includes three processes: pesticide spraying, earthworm enrichment and remediation, and microbial decomposition. The insecticide is prepared from the following materials, all in parts by mass: 290kg of organic fertilizer, 29kg of microbial agent, 0.06kg of pyrethrum, 0.05kg of deervine and 0.03kg of Bacillus thuringiensis powder.

[0052] The preparation technology of described insecticide is:

[0053] ① Put the organic fertilizer on a sterile plastic film, spread it flat, cover it with a sterile plastic film for ultraviolet sterilization for 2 days, remove the film, put it in a cool place, add microbial agents and mix well for later use;

[0054] ②Put pyrethrum and deer vine in a non-iron container, soak in warm boiling water at a temperature of 10-20°C for 30 minutes, the water consumption is 3.5 times the weight of the raw materials, put it on a smokel...

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Abstract

The invention discloses a method for remedying heavy metal contaminated soil. The method comprises the three processes of insecticide spraying, earthworm enrichment and remediation and microbial decomposition, wherein an insecticide in the insecticide spraying process is prepared from the following materials in parts by weight: 280-320 parts of organic fertilizers, 28-32 parts of microbial agent, 0.05-0.1 part of pyrethrum, 0.03-0.09 part of derris and 0.02-0.06 part of bacillus thuringiensis powder. The method for remedying heavy metal contaminated soil not only can achieve the effect of improving the fertilizer efficiency of the soil but also can achieve the effect of killing pests in the soil and on the earth surface, has the advantage that the microbial decomposition process is also added, has obvious effects and is simple to operate.

Description

[0001] Divisional application, original application number 2014105572312, application date 2014.10.21, titled method of comprehensively utilizing biochemical resources to restore heavy metal-contaminated soil. technical field [0002] The invention discloses a soil remediation method, in particular to a method for comprehensively utilizing biochemical resources to repair heavy metal-contaminated soil, and belongs to the field of soil remediation methods. Background technique [0003] Soil heavy metal pollution refers to the phenomenon that due to the addition of metals to the soil due to human activities, the heavy metals in the soil are significantly higher than the original content, and the quality of the ecological environment is deteriorated. Heavy metals in polluted soil mainly include mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr) and metalloid arsenic (As) and other elements with significant biological toxicity, as well as zinc (Zn) and copper with certain toxici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/10C05G3/60
CPCB09C1/00B09C1/08B09C1/10B09C1/105B09C2101/00C05G3/60
Inventor 不公告发明人
Owner 苗庆龄
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