Biostimulation method for remediation of oil-polluted soil

A technology for oil pollution and soil remediation, applied in the field of environmental remediation, can solve the problems of difficult oil-soil separation, achieve the effect of improving soil aeration, increasing water permeability and air permeability, and promoting the migration and conversion of substances and energy
CN101947544AInactive Publication Date: 2011-01-19SINOPEC PETROLEUM ENG DESIGN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SINOPEC PETROLEUM ENG DESIGN
Publication Date
2011-01-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a biostimulation method for remediation of oil-polluted soil. In the method, on the premise of not adding an oil pollutant biodegrading bacterial agent, a soil conditioner is added to improve the soil environment, reduce soil stickiness, increase the soil permeability, adjust the water-retaining capacity of the soil, adjust inorganic and organic nutrients necessary for local microbe growth, maintain the pH value of the soil close to neutrality, promote oil pollutant degrading microbes in the soil to grow and propagate, and improve the oil pollutant degrading efficiency of the local microbes; by planting plants, the microenvironment of the soil near root systems of the plants is improved, the plants secrete organics with low molecular weight such as amino acid to the root systems so as to stimulate the massive propagation of the local microbes and indirectly promote oil pollutant degradation by the microbes of the root systems; and the biostimulation method has the advantages of accelerating the remediation of the oil-polluted soil and restoring the original state of the soil.
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Description

1. Technical field

[0001] The invention belongs to the technology of environmental remediation, in particular to a biostimulation method for remediation of petroleum-contaminated soil. 2. Background technology

[0002] As the largest receptor in the environment, soil is a combination of organic and inorganic, containing a variety of petroleum hydrocarbon pollutants degrading microorganisms, so it has a strong buffer and self-repair ability for pollution. Before the soil is polluted by oil, its natural community structure or microbial population is not suitable for oil pollution; when the soil environment is polluted by oil, the microbial community structure will change, and the populations that can adapt to oil pollution continue to develop or can develop better Populations, these native microorganisms degrade petroleum pollutants while utilizing hydrocarbons in petroleum and its derivatives in the soil as their carbon and energy sources for growth and reproduction. A large...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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