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Bioremediation method of organic matter contaminated soil

A technology of contaminated soil and bioremediation, which is applied in the field of bioremediation of organic pollutant-contaminated soil, can solve the problems of no catalyst for promoting the decomposition of organic pollutants, no agricultural application value, and unfavorable growth of microorganisms, etc., achieve good dispersion effect and avoid secondary Pollution, effect of increasing oxygen content

Active Publication Date: 2015-05-13
NANJING KESHENG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no catalyst to promote the decomposition of organic pollutants, but the use of microorganisms for degradation
It puts the soil in a closed container and has no agricultural application value
At the same time, an anaerobic environment is created, which is not conducive to the growth of most microorganisms, and the technical feasibility is very low

Method used

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  • Bioremediation method of organic matter contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An organism of organic matter pollutes the soil is based on such an attachment figure 1 The processing device is implemented.Treatment device includes: soil area to be repaired 1. Aederbon exposure fan 2. Regulating valve 3. Buried aerated air ducts 4. Ventures on the air duct 5, water spray pipe 6, plastic membrane seal shed 7, exhaust gas outlet pipe pipe tube8, exhaust gas adsorption tower 9 and exhaust pipe valve 10.

[0030] The specific implementation steps are as follows:

[0031] (1) Stir the soil and break it, and remove the large pieces of gravel and construction waste.

[0032] (2) Add organic fertilizer, nitrogen and phosphate fertilizer to the soil and mix well.After adding fertilizer to the soil, the content of the C, N and P in the soil is 1200 mg / kg, 140 mg / kg, and 10 mg / kg.

[0033] (3) The water content of the soil is adjusted to the soil by 25%.

[0034] (4) Dig out the soil and bury the trachea at the bottom. The pore diameter is 3.5mm and the pore dista...

Embodiment 2

[0040] An organism of organic matter pollutes the soil is based on such an attachment figure 1 The processing device is implemented.Treatment device includes: soil area to be repaired 1. Aederbon exposure fan 2. Regulating valve 3. Buried aerated air ducts 4. Ventures on the air duct 5, water spray pipe 6, plastic membrane seal shed 7, exhaust gas outlet pipe pipe tube8, exhaust gas adsorption tower 9 and exhaust pipe valve 10.

[0041] The specific implementation steps are as follows:

[0042] (1) Stir the soil and break it, and remove the large pieces of gravel and construction waste.

[0043] (2) Add organic fertilizer, nitrogen and phosphate fertilizer to the soil and mix well.After adding fertilizers to the soil, the content of the C, N and P in the soil is 1500 mg / kg, 110 mg / kg, and 10 mg / kg.

[0044] (3) The water content of the soil is adjusted to the soil to adjust the water content of 30%.

[0045] (4) Dig out the soil and bury the bronchial tube at the bottom. The pore ...

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Abstract

The invention belongs to the technical field of soil bioremediation and in particular relates to a bioremediation method of organic matter contaminated soil. The bioremediation method comprises the following steps: stirring and crushing soil; adding an organic fertilizer and nutrients into the soil, and uniformly mixing; regulating the humidity of the soil with water; adding specific efficient microorganisms, a catalyst and a surfactant; carrying out aeration oxygenation on the soil, and simultaneously collecting tail gas; and periodically carrying out sample examination. Shown by a result, according to the bioremediation method disclosed by the invention, the degradation rates of aniline and nitrobenzene pollutants reach up to above 90 percent.

Description

Technical field [0001] The present invention is the field of soil biological repair technology, which involves a method of biological repair that pollutes soil pollution. Background technique [0002] At present, the overall situation of soil pollution in my country is quite severe.One is that soil pollution is severe, and the other is that soil pollution is huge.Soil organic pollution refers to soil pollution caused by the self -purification capacity of the soil than the self -purification capacity of the soil.With the rapid development of modern workers and agriculture, the large amount of fertilizer and pesticides and the mining of ore and oil fields, the discharge of enterprises such as petrochemical, pesticide and pharmaceutical production has caused the current status of soil pollution to deteriorate.Soil organic pollutants are mostly volatile and semi -volatile composite pollutants. These pollutants are continuously migrated and transformed in the soil. They can enter the ...

Claims

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Application Information

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IPC IPC(8): B09C1/10
Inventor 高洪刚曹惠忠
Owner NANJING KESHENG ENVIRONMENTAL PROTECTION TECH
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