Mercury-contaminated soil remediation agent

A soil remediation agent and mercury-polluted technology, applied in the field of soil remediation, can solve the problems of incomplete and complete elimination of heavy metals in the soil, and achieve the effect of mild action conditions

Inactive Publication Date: 2016-10-26
战锡林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The above-mentioned remediation methods for mercury-contaminated soil may not completely eliminate the heavy metals in the soil, or bring new pollutants, and there are vari...

Method used

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  • Mercury-contaminated soil remediation agent
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  • Mercury-contaminated soil remediation agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Take a mercury-contaminated soil sample. After testing, the mercury content in the soil is 0.89mg / kg;

[0051] Get the soil remediation agent according to the ratio of 50 grams of soil remediation agent per 1000 grams of soil sample;

[0052] Add the following raw materials to the soil sample: chitosan, kaolin, Dunaliella, citric acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed shell, fern, betel nut wood chips, palm wood chips;

[0053] The parts by weight of each raw material are as follows:

[0054]

[0055] Mix with soil samples and keep for 48 hours;

[0056] Among them, Dunaliella is dried and pulverized algal powder, and its water content is about 3%;

[0057] Corn cobs are dried and crushed granules with a water content of about 4%;

[0058] Pteris fern is also a powder after drying and crushing, and its water content is about 3%;

[0059] Betel nut wood chips and palm wood chips are dried to a moisture content of 4% and crushed;

...

Embodiment 2

[0085] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove mercury in the soil sample, the difference is that the parts by weight of the soil remediation agent etc. are different;

[0086]

[0087] The compound enzyme preparation is composed of α-amylase, methyltransferase and uric acid oxidase;

[0088] The enzyme activity of α-amylase is 5.4×10 5 U / g, methyltransferase activity is 18.3×10 5 U / g, uric acid oxidase enzyme activity is 8.9×10 5 U / g; the weight ratio of α-amylase, methyltransferase and urate oxidase is 2:4:3;

[0089] Compound microbial agent 0.005;

[0090] The active ingredients of the above-mentioned composite microbial agent are composed of Pseudomonas aeruginosa powder, Staphylococcus aureus powder, Thiobacillus ferrooxidans bacteria powder, Pseudomonas putida bacteria powder, Bacillus cereus bacteria powder, Trichoderma reesei bacteria powder composed of powder;

[0091] The weight ratio of above-mentioned ...

Embodiment 3

[0099] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove mercury in the soil sample, the difference is that the parts by weight of the soil remediation agent etc. are different;

[0100]

[0101] The compound enzyme preparation is α-amylase, methyltransferase, urate oxidase;

[0102] The enzyme activity of α-amylase is 5.4×10 5 U / g, methyltransferase activity is 18.3×105 U / g, uric acid oxidase enzyme activity is 8.9×10 5 U / g; the weight ratio of α-amylase, methyltransferase and urate oxidase is 1:2:1;

[0103] Composite microbial agent 0.048;

[0104] The active ingredients of the composite microbial agent are composed of Pseudomonas aeruginosa powder, Staphylococcus aureus powder, Thiobacillus ferrooxidans powder, Pseudomonas putida powder, Bacillus cereus powder, Trichoderma reesei powder composition;

[0105] The weight ratio of Pseudomonas aeruginosa bacteria powder, Staphylococcus aureus bacteria powder, Thiobacillus fer...

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Abstract

The invention belongs to the technical field of soil remediation, and in particular relates to a mercury-contaminated soil remediation agent. The mercury-contaminated soil remediation agent is prepared from the following components: chitosan, kaolin, dunaliell, citric acid, shell powder, mushroom bran of flammulina velutipes, corncob, rice bran, tea seed shell, pteris nervosa, areca sawdust, palm sawdust, a complex enzyme preparation and a composite microbial agent. After the soil remediation agent is adopted, the soil is treated by using mild enzymes and microbial strains under the condition that other chemical solvents are not introduced into the soil, so that the new pollution is not caused, and the action condition is mild; the strain, enzyme and other materials are capable of effectively degrading or absorbing mercury.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a mercury-polluted soil remediation agent. Background technique [0002] With the rapid development of modern industry, the problem of mercury pollution has become increasingly serious. From the 1950s to the 1970s, through the "Minamata Disease" incident in Japan, people began to realize that mercury would cause serious harm in water systems. Studies of the Swedish aquatic environment have also shown that freshwater fish, saltwater fish and other aquatic organisms contain very high levels of mercury compounds. In the area of ​​Songhua River in Northeast my country, mercury pollution caused by wastewater discharged from coastal chemical plants and metallurgical plants has caused great harm to fishermen. After autopsy on dead fishermen, it was found that there were excessive amounts of mercury and methylmercury in multiple organs of their bodies . Initially, p...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/10
CPCC09K17/40B09C1/10
Inventor 战锡林
Owner 战锡林
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