Polycyclic aromatic hydrocarbon-polluted soil restoration material

A soil remediation, polycyclic aromatic hydrocarbon technology, applied in the field of soil remediation

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

[0014] There is little literature on the removal of polycyclic aromatic hydrocarbon pollutants in soil

Method used

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  • Polycyclic aromatic hydrocarbon-polluted soil restoration material
  • Polycyclic aromatic hydrocarbon-polluted soil restoration material
  • Polycyclic aromatic hydrocarbon-polluted soil restoration material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Take the soil sample polluted by polycyclic aromatic hydrocarbons, and then take the soil remediation agent according to the ratio of 50 grams of soil remediation agent per 1000 grams of soil sample;

[0084] Add the following raw materials to the soil sample: chitin, zeolite powder, green algae, humic acid, shell powder, enoki mushroom chaff, corn cob, rice bran, tea seed shell, peat ash, betel nut wood chips, palm tree chips;

[0085] The parts by weight of each raw material are as follows:

[0086]

[0087] Mix with soil samples and keep for 48 hours;

[0088] The bacterium powder that the present invention adopts, enzyme are all derived from commercially available;

[0089] Chlorella is dried and pulverized algal powder with a water content of about 3%;

[0090] Corn cobs are dried and crushed granules with a water content of about 4%;

[0091] Its moisture content of peat ash is about 3%; The following examples are the same; If there is no special instruction...

Embodiment 2

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

[0127]

[0128] The compound enzyme preparation is composed of carboxypeptidase B, glyceraldehyde-3-phosphate dehydrogenase and butyrylcholinesterase;

[0129] Enzyme activity of carboxypeptidase B 5.4×10 5 U / g; glyceraldehyde-3-phosphate dehydrogenase 18.3×10 5 U / g; butyrylcholinesterase 8.9×10 5 U / g, the enzyme activity of polyphenol oxidase is 11.3×10 5 U / g, the enzyme activity of polyphenol oxidase is 11.3×10 5 U / g;

[0130] The weight ratio of carboxypeptidase B, glyceraldehyde-3-phosphate dehydrogenase, butyrylcholinesterase and polyphenol oxidase 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 Pseu...

Embodiment 3

[0140] Exactly the same as the soil sample in Example 1, adopt the same method as Example 1 to remove polycyclic aromatic hydrocarbon pollutants in the soil sample, the difference is that the parts by weight of the soil repair material etc. are different;

[0141]

[0142] The compound enzyme preparation is carboxypeptidase B, glyceraldehyde-3-phosphate dehydrogenase, butyrylcholinesterase;

[0143] Enzyme activity of carboxypeptidase B 5.4×10 5 U / g, glyceraldehyde-3-phosphate dehydrogenase enzyme activity is 18.3×10 5 U / g, butyrylcholinesterase activity is 8.9×10 5 U / g; the ratio of carboxypeptidase B, glyceraldehyde-3-phosphate dehydrogenase and butyrylcholinesterase in parts by weight is 1:2:1;

[0144] Composite microbial agent 0.048;

[0145] The active ingredient of the complex microbial agent consists of Pseudomonas aeruginosa powder, Bacillus mycoides powder, Pseudomonas fluorescens powder, Coralococcus microbes powder, Shewanella bacteria powder, Pichia pastoris...

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Abstract

The invention belongs to the technical field of soil restoration and relates to a polycyclic aromatic hydrocarbon-polluted soil restoration material. The polycyclic aromatic hydrocarbon-polluted soil restoration material comprises chitin, zeolite powder, green alga, humic acid, shell powder, needle mushroom residues, cob, rice bran, tea seed shells, peat ash, betel nut tree wood chips, palm tree wood chips, a compound enzyme preparation and composite microbe inocula. The polycyclic aromatic hydrocarbon-polluted soil restoration material utilizes mild enzymes and a microbe bacterial strain to treat soil without use of other chemical solvents so that novel pollution is avoided and action conditions are mild. The strain degrades or adsorbs polycyclic aromatic hydrocarbons but also obviously improves soil quality conditions.

Description

technical field [0001] The invention belongs to the technical field of soil remediation, and in particular relates to a polycyclic aromatic hydrocarbon contaminated soil remediation material. Background technique [0002] Polycyclic aromatic hydrocarbons (PAHs) are a class of typical persistent toxic substances, which mainly come from the incomplete combustion of fossil fuels and biomass. PAHs are persistent, long-distance migration, lipophilic, and "three-caused" toxicity, and they are ubiquitous in environmental media. PAH can also pollute water and soil through wastewater and waste residue, and dust in the atmosphere can also fall to water and soil. Among them, soil is a major sink of PAHs, and the level and composition characteristics of PAHs in soil can reflect the pollution status and main sources of PAHs in the region. In the survey and evaluation of soil pollution in China, the reference value for the evaluation of soil polycyclic aromatic hydrocarbons is 100 μg / kg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/10
CPCC09K17/40B09C1/10B09C1/105
Inventor 战锡林
Owner 战锡林
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