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Petroleum hydrocarbon contaminated soil microbial coupling degradation agent and use method thereof

A technology of polluted soil and microbial agent, applied in the field of environmental remediation, can solve the problems of slow degradation efficiency and low degradation rate of petroleum hydrocarbons in microbial remediation, achieve good oil dispersion ability, promote emulsification and dissolution, and improve degradation efficiency.

Inactive Publication Date: 2019-04-19
杭州造品科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is: the degradation rate of microbial remediation of petroleum hydrocarbons is low, and the degradation efficiency is slow, and a new type of practical and efficient remediation agent for petroleum hydrocarbon contaminated soil is provided to solve the above problems

Method used

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  • Petroleum hydrocarbon contaminated soil microbial coupling degradation agent and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: The microbiology laboratory of Hangzhou Zaopin Technology Co., Ltd. conducts pot experiments

[0018] The polluted soil collected from Panjin Shuguang Oilfield was air-dried, ground, and passed through a 2.5mm sieve. Sampling was taken to determine the oil content of the soil.

[0019] Table 1 Soil oil content and pH index detection

[0020] Detection Indicator

oil content

pH

Contaminated soil samples

0.45%

7.8

[0021] Table 1

[0022] Take 200g of soil and put it into a small flower pot, take 10ml of the 50-fold diluted medicine, and stir evenly.

[0023] Pour 2ml of bacterial solution into the flower pot, stir and mix evenly to make the soil bacteria content greater than 10 7 Individual / g, add water to make the soil water content reach 25-30%, place in a ventilated place for ventilation and culture for 3 months, and replenish water in time.

[0024] See the degradation effect of adding bacteria agent alone and adding...

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Abstract

The invention relates to a petroleum hydrocarbon contaminated soil microbial coupling degradation agent and a use method thereof. The degradation microorganism is acinetobacter, and the degradation agent is composed of sodium dodecyl-benzene sulfonate, fatty alcohol-polyoxyethylene ether and iso-tridecanol polyoxyethylene ether according to the mass percentages of 2.8%, 2.2% and 5.0% respectively.Soil preprocessing is conducted first, Tri-color is mixed with soil, and emulsification and dissolution of petroleum are promoted. Then, the efficient microorganism is added, the contact area betweenthe microorganism and the petroleum is enlarged, and therefore the degradation efficiency of petroleum hydrocarbon is improved. A Tri-color degradation agent is free of toxin and harm and is preparedby specially matching non-toxic plant compounds with surfactants. By means of the technology, the petroleum hydrocarbon degradation rate can reach 74% within three months and is increased by 18% compared with the independent repairing method with the efficient microorganism; by means of the technology, the removal rate of the soil petroleum hydrocarbon is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of environmental remediation, and relates to a method for jointly remediating soil with a Tri-color degradation agent and a microbial agent, that is, to a microbial coupling degradation agent (TRI-COLORI) for remediation of petroleum hydrocarbon-contaminated soil and a use method thereof. Background technique [0002] Petroleum is the main energy source in the world today, and the demand for petroleum in various countries is also increasing rapidly. There are different degrees of leakage and discharge in the process of petroleum exploitation, transportation, processing and use, and the pollution caused by it is also becoming more and more serious. According to my country's 2015 soil pollution survey report, at least 5 million hectares of soil in my country have been polluted by petroleum hydrocarbons to varying degrees. After petroleum hydrocarbons enter the soil, they are enriched in the body by plants, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/14B09C1/00
CPCB09C1/00C09K17/14
Inventor 戴柏平张晓林姚文冲刘坤邝宏强王幽静潘彦硕
Owner 杭州造品科技有限公司
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