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Soil remediation composition and application and soil biological remediation method

A technology of soil remediation and composition, applied in the field of soil remediation composition and soil bioremediation, can solve the problems of poor soil remediation effect, achieve good soil remediation effect, promote reproduction, and low cost

Inactive Publication Date: 2019-03-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the defective that prior art uses the method for bioremediation to the soil remediation effect of petroleum hydrocarbon contamination poor, a kind of soil remediation composition and soil bioremediation method are provided, can obtain comparatively according to the method of the present invention Good soil remediation effect, and the composition and method of the present invention are particularly suitable for the remediation of petroleum hydrocarbon-contaminated soil, especially for the remediation of petroleum hydrocarbon-contaminated soil and volatile and semi-volatile petroleum hydrocarbon-contaminated soil

Method used

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  • Soil remediation composition and application and soil biological remediation method
  • Soil remediation composition and application and soil biological remediation method
  • Soil remediation composition and application and soil biological remediation method

Examples

Experimental program
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Effect test

Embodiment 1

[0109] Weigh 6g polyacrylic acid and dissolve it in 200g deionized water to obtain aqueous solution 1; weigh 0.96g urea and dissolve it in 100g deionized water to obtain aqueous solution 2; take Stenotrophomonas and mix it in 300g deionized water to obtain aqueous solution 3; Take 45g of sawdust and 90g of rice bran and mix them in 2400g of soil, add the aqueous solutions 1, 2, and 3 into the soil, and mix evenly. Then add 19.75g of n-dodecane to the uniformly mixed soil and mix well. Add water every two days, keep the soil water content at 15-25% by weight, and turn the soil 3 times a week. The soil petroleum hydrocarbon content and the total number of soil bacteria were tested weekly, and the results are shown in Table 1 and Table 2, respectively.

Embodiment 2

[0111] Weigh 3.6g of polyacrylamide and dissolve it in 200g of deionized water to obtain aqueous solution 1, weigh 12.86g of corn steep liquor and dissolve it in 100g of deionized water to obtain aqueous solution 2, take Dietzella and mix it in 300g of deionized water to obtain aqueous solution 3 , Weighed 45g of straw and 90g of rice bran and mixed them in 2400g of soil, added the aqueous solutions 1, 2, and 3 into the soil, and mixed them evenly. Add 19.75g of n-dodecane to the uniformly mixed soil and mix well. Add water every two days, keep the soil water content at 15-25% by weight, and turn the soil 3 times a week. The soil petroleum hydrocarbon content and the total number of soil bacteria were tested weekly, and the results are shown in Table 1 and Table 2, respectively.

Embodiment 3

[0113] Weigh 8.4g starch-acrylic acid polymer and dissolve it in 200g deionized water to obtain aqueous solution 1, weigh 0.96g urea and dissolve it in 100g deionized water to obtain aqueous solution 2, mix Micrococcus luteus with 300g deionized water to obtain aqueous solution 3. Weigh 45g of zeolite powder and 90g of rice bran and mix them in 2400g of soil. Add the aqueous solutions 1, 2, and 3 into the soil and mix evenly. Add 19.75g of n-dodecane to the uniformly mixed soil and mix well. Add water every two days, keep the soil water content at 15-25% by weight, and turn the soil 3 times a week. The soil petroleum hydrocarbon content and the total number of soil bacteria were tested weekly, and the results are shown in Table 1 and Table 2, respectively.

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Abstract

The invention relates to the field of environmental protection, in particular to a soil remediation composition and an application and a soil biological remediation method. The soil remediation composition contains a water-retaining agent, a soil conditioning agent, a nutrient substance, rice bran and a mixed microbial agent; the application is the application of the soil remediation composition in remediation of soil; the method includes the soil remediation composition described above to repair the soil; a microbial agent capable of degrading petroleum hydrocarbons is introduced into the soil; and meanwhile, the components (such as the soil conditioning agent, the nutrient substance, the rice bran, the water-retaining agent and the like) which have an improved effect on soil texture areintroduced at the same time so that the microbial agent can be promoted to propagate in the soil, pollutants in the soil can be prompted to be degraded so that a good soil remediation effect can be obtained. The soil remediation composition cannot cause secondary pollution to the soil, the soil environment cannot be damaged, the cost is low, and the operation is simple.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a soil remediation composition and application and a soil bioremediation method. Background technique [0002] During the process of oil exploration, mining, transportation, refining, etc., due to improper operation or accidental leakage, some oil spills into the soil, causing petroleum hydrocarbon pollution in the soil. The world's annual petroleum pollutants discharged into the environment through crude oil landing and accidental leakage are about 8×10 6 t, petroleum hydrocarbon pollution has become the focus of attention in the world. In the 1980s, serious petroleum hydrocarbon soil pollution problems appeared in the United States. About half of its 450,000 brownfields were polluted by petroleum hydrocarbons. During the same period, the oil hydrocarbon-contaminated sites in Canada were as high as 60%, and many areas and factories in the United Kingdom also had serious ...

Claims

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Application Information

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IPC IPC(8): B09C1/10C09K17/40
CPCB09C1/10C09K17/40
Inventor 王亭郦和生胡艳华王岽
Owner CHINA PETROLEUM & CHEM CORP
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