Method and device for remediating polluted sites of gas stations

A repair method and gas station technology, applied in the restoration of contaminated soil, etc., can solve the problems of strong adsorption, waste of chemicals, and inability to deal with long carbon chains, etc., achieve the effect of repairing economy, avoiding waste of chemicals, and improving overall efficiency

Active Publication Date: 2020-07-10
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a repair method for a gas station polluted site, which can solve the disadvantage that soil vapor extraction (SVE) technology cannot handle pollutants with long carbon chains and strong adsorption. At the same time, it avoids the problem that chemical oxidants will preferentially react with short carbon chains and analytical pollutants, and avoids the waste of chemicals

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for remediating polluted sites of gas stations
  • Method and device for remediating polluted sites of gas stations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment firstly provides a repairing device for a gas station polluted site, its structure is as follows: figure 1 As shown, the remediation device for the contaminated site of the gas station includes: control skid 1, injection skid 2, extraction well 3 and agent injection well 4;

[0050] The control skid 1 includes: a first power supply 9, a first programmable logic controller 10, a blower 6, a heater 7, an air compressor 5 and an oil-water separator 13;

[0051] The injection skid 2 includes a second power supply 11, a second programmable logic controller 12, an exhaust gas adsorber 14, a vacuum pump 8, an oil and gas separator 15, a biological agent storage tank 16 and a chemical agent storage tank 17;

[0052] The control skid 1 communicates with the extraction well 3 through an air compressor;

[0053] The injection skid 2 communicates with the medicament injection well 4 through the biological medicament storage tank 16 and the chemical medicament stora...

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

No PUM Login to view more

Abstract

The invention provides a repairing method and device for a gas station polluted site. The repairing method for the gas station polluted site comprises the steps that the polluted range of the gas station polluted site and concentration distribution of pollutants are determined; according to the soil gas phase extraction method, an extraction well and a ventilating well are laid, and an agent injection well is laid; soil gas phase extraction is conducted for fifteen days, an agent is injected into the agent injection well to react for 1-2 days, and after 2-3 days, soil gas phase extraction is continued; and the step (3) is repeatedly conducted till the pollutant concentration of the gas station polluted site is reduced to be 5%-10% of the original pollutant concentration, and repairing for the gas station polluted site is completed. The invention further discloses a repairing device for the gas station polluted site. According to the repairing method, the disadvantage that the pollutants with long carbon chains and high adsorbing performance cannot be treated through the soil gas phase extraction technology can be overcome; and meanwhile the problem that a chemical oxidizing agent preferentially reacts with the parsing-state pollutants with short carbon chains is solved, and agent waste is avoided.

Description

technical field [0001] The invention relates to a repair method and device, in particular to a repair method and device for a polluted site of a gas station, belonging to the field of petroleum. Background technique [0002] Gas station storage tank and pipeline leakage pollution is the main cause of soil petroleum hydrocarbon pollution, and the pollutants are mainly gasoline and diesel. Among them, gasoline is a mixed hydrocarbon, the main components are C4-C12 aliphatic hydrocarbons and cyclic hydrocarbons, and contains olefins and a small amount of aromatic hydrocarbons, sulfides, etc.; diesel oil is also a mixed hydrocarbon, and its main chemical components are C10-C22 hydrocarbons: Alkanes 67.69%, cycloalkanes 15.22% (monocyclic 8.6%, bicyclic 5.36%, tricyclic 1.26%), aromatics 17.09% (single-ring aromatics 9.9%, alkylbenzene 8.56%, indene and naphthalene derivatives: 1.3% , polycyclic aromatic hydrocarbons 7.19%, indenes 0.37%, naphthalenes 3.58%, acenaphthenes 2.41%,...

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
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 陈昌照张坤峰于文赫陈宏坤杜显元刘玉龙宋佳宇刘思敏
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap