A kind of remediation method of oily soil
A remediation method and technology for oil pollution, applied in the field of remediation of oil-contaminated soil, can solve the problems of secondary pollution, easy leakage, occupying land, etc., and achieve the effect of convenient replacement and removal, and enhanced looseness
Active Publication Date: 2021-11-12
WUHAN SURVEYING GEOTECHN RES INST OF MCC
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This method is simple to operate, but it takes up land and is prone to leakage and pollution of the surrounding environment
In summary, these patented technologies still have deficiencies and shortcomings, such as long repair time, secondary pollution, etc.
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0032] Embodiment: for a certain oil-contaminated area, through the exploration of the oil-contaminated soil area, the area of the oil-contaminated soil is: 10000m 2 , the pollution depth is 0.8m: the depth of the aquifer is 3m, and the initial oil content of the oily soil is 10000mg / kg; for the oily soil area, the following oily soil remediation methods are adopted, specifically including the following steps:
[0033] (1) According to the exploration results, set up a circle of isolation anti-seepage zone on the edge of the oil-contaminated area to be treated: first determine the scope of the oil-contaminated area to be treated according to the survey data, and determine the position of the isolation anti-seepage zone 1 by marking, and then draw the line A ravine is dug in the site with a depth of 3m and a width of 1-2m. After that, clay is filled into the ravine. The clay content of the filled clay is 35% to 50%, and the permeability coefficient is less than 1×10-5 cm / s, th...
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
Login to View More PUM
Login to View More Abstract
The invention provides a method for remediating oily soil. The remediation method of the oil-contaminated soil specifically includes: first, determine the range and depth of the oil-contaminated soil according to the survey results, and according to the survey results, set up a circle of isolation and anti-seepage belts on the edge of the oil-contaminated area to be treated, and adopt multiple horizontal or vertical partitions. Ditch divides the oil pollution area to be treated surrounded by the isolation anti-seepage zone, digs a shaft in each treatment area, and places a vertical injection pipe in each shaft, and fills the shaft and the separation ditch with rice husk carbon adsorption material , high-pressure water spraying through the injection pipe to loosen the surrounding oil pollution, and at the same time, the oil pollution in the oily soil is adsorbed through the rice husk carbon adsorption material. The present invention first sprays water vapor through the jet pipe in the shaft, on the one hand, loosens the soil, enhances the water permeability and gas permeability, and on the other hand, carries out the oil stain in the soil through the micro-water flow, and adsorbs it on the rice husk charcoal; it can also spray microorganisms through the jet pipe to Soil oil pollution is biodegradable.
Description
technical field [0001] The invention relates to the field of environmental rock and soil repair, in particular to a method for repairing oil-contaminated soil. Background technique [0002] Oil-contaminated soil refers to polluted soil where the content of petroleum substances in the soil exceeds its self-purification capacity. Pollution accidents may occur in the process of oil extraction, refining, transportation, storage and use. Oil-contaminated soil cannot be cultivated, and vegetation growth will be seriously damaged. If it is not treated in time, the oil in the soil will further infiltrate, pollute groundwater and surrounding soil and water bodies, cause secondary pollution, and cause harm to human health. [0003] Currently, the remediation methods of oil-contaminated soil sites mainly include: (1) Physical treatment methods, including heat treatment, isolation, soil replacement, incineration, and air stripping. The main mechanism of this type of method is the tran...
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
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00B09C1/02B09C1/10
Inventor 陶冬艳管海啸张光建杨慧之官琦
Owner WUHAN SURVEYING GEOTECHN RES INST OF MCC