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Restoration agent for heavy metal contaminated soil

A soil remediation agent and heavy metal technology, applied in the field of soil remediation, can solve the problems of incomplete and complete elimination of soil heavy metals, etc., and achieve the effect of obvious improvement of soil conditions and mild action conditions

Inactive Publication Date: 2016-10-12
战锡林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented solution uses certain types of bacteria called Bacillus spores (Bacillusssp.) which can break down harmful substances from various materials such as fertilizers. These Bacterium helps improve the quality of crops by breaking up any remaining waste material before it becomes too much for them to be absorbed into their roots through rooting activity.

Problems solved by technology

Technologies aim at improving the use of pesticides (pesticide) in heavily populated areas without causing negative side impacts on humans and croplods. Existing techniques involve adding excess amounts of pesitives during land filling operations, leading to increased costs and risks related diseases. Additionally, existing technics like crop rotation and aggraftion require specific treatments before sealing up any remaining residences from infested sites.

Method used

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  • Restoration agent for heavy metal contaminated soil
  • Restoration agent for heavy metal contaminated soil
  • Restoration agent for heavy metal contaminated soil

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 remediation agent according to the ratio of 50 grams of soil remediation agent per 1000 grams of soil sample;

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

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

[0064]

[0065] Mix with soil samples 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 ...

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 remediation agent etc. are different;

[0104]

[0105] The compound enzyme preparation is composed of laccase, thioesterase and phytase;

[0106] The enzyme activity of laccase is 5.4×10 5 U / g, the enzyme activity of thioesterase is 18.3×10 5 U / g, the enzyme activity of phytase is 8.9×10 5 U / g; the ratio of parts by weight of laccase, thioesterase and phytase is 2:4:3;

[0107] Compound microbial agent 0.005;

[0108] The active ingredients of the above-mentioned composite microbial agent are composed of Pseudomonas putida powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, Li Composed of Trichoderma fungus powder;

[0109] The weight ratio of the above-mentioned Pseudomonas putida bacterial powder,...

Embodiment 3

[0118] 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 remediation agent etc. are different;

[0119]

[0120] The compound enzyme preparation is laccase, thioesterase and phytase;

[0121] The enzyme activity of laccase is 5.4×10 5 U / g, the enzyme activity of thioesterase is 18.3×10 5 U / g, the enzyme activity of phytase is 8.9×10 5 U / g; the ratio of parts by weight of laccase, thioesterase and phytase is 1:2:1;

[0122] Composite microbial agent 0.048;

[0123] The active ingredients of the complex microbial agent are composed of Pseudomonas putida powder, Pseudomonas fluorescens powder, salt-tolerant yeast powder, Schizosaccharomyces pombe powder, sulfate-reducing bacteria powder, Reesei wood Composed of mold powder;

[0124] The weight ratio of Pseudomonas putida bacterial powder, Pseudomonas fluorescens bacterial powder, salt-tolera...

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Abstract

The invention belongs to the technical field of soil remediation, and in particular relates to a heavy metal polluted soil remediation agent. Soil remediation agent contaminated by heavy metals, including the following components: chitosan, bentonite, Dunaliella, citric acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed hulls, moss aspergillus, betel nut wood chips , Palm wood chips, compound enzyme preparation, compound microbial agent. The soil remediation agent of the invention is used to treat the soil with mild enzymes and microbial strains without introducing other chemical solvents, without introducing new pollution, and the action conditions are mild.

Description

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Claims

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Application Information

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Owner 战锡林
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