Remediation material for soil contaminated by organophosphorus pesticides

An organophosphorus pesticide and soil remediation technology, which is applied in the field of soil remediation, can solve problems such as being easily restricted by itself and external factors, imperfect, and unable to be completely eliminated.

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

[0010] Although the above-mentioned phytoremediation technology has many advantages, there are still many imperfections, and there are certain limitations in practical application. and external constraints
[0011] The above-mentioned remediation methods for soil polluted by organophosphorus pesticides may not completely eliminate the organophosphorus pesticide pollutants in the soil, or bring new pollutants, or their use is restricted by environmental conditions, so there are various defects Therefore, it is necessary to explore a kind of soil remediation agent that has a good effect of removing organophosphorus pesticides and is milder and does not produce new pollution in view of the above-mentioned status quo.

Method used

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  • Remediation material for soil contaminated by organophosphorus pesticides
  • Remediation material for soil contaminated by organophosphorus pesticides
  • Remediation material for soil contaminated by organophosphorus pesticides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Take the soil sample polluted by organochlorine pesticides, and then take the soil remediation agent according to the ratio of 50 grams of soil remediation agent per 1000 grams of soil sample;

[0085] Add the following raw materials to the soil sample: chitin, kaolin, green algae, citric acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed shell, walnut shell, betel nut wood chips, palm wood chips;

[0086] The parts by weight of each raw material are as follows:

[0087]

[0088] Mix with soil samples and keep for 48 hours;

[0089] The bacterium powder that the present invention adopts, enzyme are all derived from commercially available;

[0090] Chlorella is dried and pulverized algal powder with a water content of about 3%;

[0091] Corn cobs are dried and crushed granules with a water content of about 4%;

[0092] Walnut shells are also dried and pulverized powders with a water content of about 3%;

[0093] Betel nut wood chips and palm w...

Embodiment 2

[0126] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove the organophosphorus pesticide in the soil sample, the difference is that the parts by weight of the soil repair material etc. are different;

[0127]

[0128]

[0129] The compound enzyme preparation is composed of laccase, peroxidase and aldolase;

[0130] The enzyme activity of laccase is 6.8×10 5 U / g; peroxidase 17.2×10 5 U / g; aldolase 10.4×10 5 U / g, the enzyme activity of polyphenol oxidase is 12.5×10 5 U / g; the activity of laccase, peroxidase, nitro, polyphenol oxidase is 12.5×10 5 The weight ratio of U / g reductase is 2:4:3:1;

[0131] Compound microbial agent 0.005;

[0132] The active ingredients of the above-mentioned composite microbial bacterial agent are composed of Thiobacillus ferrooxidans bacteria powder, Bacillus thuringiensis bacteria powder, Pseudomonas campylobacter bacteria powder, Flavobacterium brevis bacteria powder, Micrococcus bacteria powde...

Embodiment 3

[0146] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove the organophosphorus pesticide in the soil sample, the difference is that the parts by weight of the soil repair material etc. are different;

[0147]

[0148]

[0149] The compound enzyme preparation is laccase, peroxidase and aldolase;

[0150] The enzyme activity of laccase is 6.8×10 5 U / g, peroxidase activity is 17.2×10 5 U / g, aldolase enzyme activity is 10.4×10 5 U / g; the ratio of parts by weight of laccase, peroxidase and aldolase is 1:2:1;

[0151] Composite microbial agent 0.048;

[0152] The active ingredients of the compound microbial agent are composed of Thiobacillus ferrooxidans bacteria powder, Bacillus thuringiensis bacteria powder, Pseudomonas campylobacter bacteria powder, Flavobacterium brevis bacteria powder, Micrococcus bacteria powder, Serratia marcescens bacteria powder composition;

[0153] The weight ratio of Thiobacillus ferrooxidans bacteri...

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Abstract

The invention belongs to the technical field of soil remediation and particularly relates to a remediation material for soil contaminated by organophosphorus pesticides. The remediation material is prepared from the following components: chitin, kaolin, green algae, citric acid, shell powder, golden needle mushroom bran, corn cobs, rice bran, tea seed shells, walnut shells, areca catechu tree wood chips, palm tree wood chips, a complex enzyme preparation and a complex microbial agent. With the adoption of the soil remediation material, the soil is treated by mild enzymes and microbial strains without introduction of other chemical solvents, and therefore, secondary pollution is avoided, and the acting condition is mild.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a remediation material for organophosphorus pesticide-contaminated soil. Background technique [0002] Because organophosphorus pesticides are not easy to oxidize, decompose, and be degraded by microorganisms, they can stay in the environment for a long time and may undergo chemical changes to become more toxic and harmful secondary pollutants. At the same time, the components remaining in plants can be enriched through the food chain, so that the amount of pesticide residues in food exceeds the hygienic standard. Organophosphorus pesticides can enter the human body through the digestive tract, respiratory tract and intact skin and mucous membranes. Occupational pesticide poisoning is mainly caused by skin pollution. Absorbed organophosphorus pesticides are distributed in various organs in the body, among which the liver has the largest content, and the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00
CPCC09K17/40C09K2101/00
Inventor 战锡林
Owner 战锡林
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