A deep oil-contaminated soil simulation repair device and its application

An oil-polluted, deep-seated technology, applied in the field of contaminated soil remediation, achieves the effect of low cost, low cost and simple operation

Active Publication Date: 2021-09-03
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned existing repairing technology, to provide a simple, practical and effective deep oil-contaminated soil simulation repairing device, as well as the use method of the device and a method determined by using the device. A deep oil-contaminated soil remediation method

Method used

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  • A deep oil-contaminated soil simulation repair device and its application
  • A deep oil-contaminated soil simulation repair device and its application
  • A deep oil-contaminated soil simulation repair device and its application

Examples

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Embodiment 1

[0027] exist Figure 1~3Among them, the present invention relates to a deep petroleum-contaminated soil simulation restoration device. A contaminated layer box 6, an air compressor 5, and a peristaltic pump 10 are installed on a base 10, and rollers are installed at the bottom of the base 10 to facilitate the device to move back and forth. The inside of the polluted layer box 6 is divided into at least one independent repair box by a partition 15, and the number of repair boxes is processed according to the actual situation. In this embodiment, the inside of the polluted layer box 6 is divided into four independent repair boxes by a partition 15. Each repair box is 19cm long, wide 30cm, and high 30cm. Oil-contaminated soil is filled respectively in each repair box. Drain board 14 is installed at the bottom of the repair box. Excess water is drained to the bottom of the repair box, and discharged from the device through the drain pipe 8. On the front surface of the contaminated...

Embodiment 2

[0030] In this embodiment, the wall of the sample tube 12 in this embodiment is provided with two layers of liquid outlet holes at intervals in the axial direction, each layer is spaced at 10 mm, and the diameter of the liquid outlet hole is 1 mm. .

Embodiment 3

[0032] In this embodiment, the pipe wall of the sampling tube 12 is axially provided with 8 layers of outlet holes at intervals, each layer is 20mm apart, and the diameter of the outlet holes is 3mm. .

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Abstract

The invention discloses a device for simulating and repairing deep oil-contaminated soil and its application. The device includes a box for the contaminated layer, adding soil samples to be repaired into the repair box for the box for the polluted layer, and then adding non-polluted soil into the cylindrical tube. Provide pressure for the soil in the lower polluted layer, the sampling tube is used to transport the liquid for repairing the soil, and the air compressor delivers air to the soil and promotes the diffusion of the liquid. The device has a simple structure and operation, can truly and effectively simulate the deep soil pollution environment, and evaluates and screens methods for repairing the deep oil-contaminated soil. The restoration method screened by the present invention is to first oxidize with hydrogen peroxide, then use animal liver grinding liquid to consume the remaining hydrogen peroxide and provide nutrients and a good living environment for the next step of microbial restoration, and finally cooperate with biological stimulation to enhance the effect of microbial restoration. The method is highly efficient and environmentally friendly, can directly act on polluted areas, and will not affect the surface soil ecology, and the selected reagents are economical and effective, and are easily degraded naturally.

Description

technical field [0001] The invention belongs to the technical field of remediation of contaminated soil, and in particular relates to a simulated remediation device for deep oil-polluted soil and its application. Background technique [0002] Oil transportation mainly adopts pipeline transportation, road transportation and ocean transportation, among which pipeline transportation is the most widely used. Over time, most oil transportation pipelines are corroded or vandalized, and the oil leaked from the pipelines will cause deep subsurface soil contamination. It is estimated that the world's oil and gas transmission pipelines have reached more than 2.3 million kilometers, and are growing at a rate of 40,000 to 50,000 kilometers per year, and most of the oil pipelines have been used for 30 to 40 years, resulting in the breakdown of oil pipelines. Oil spills are getting worse. Petroleum pollutants existing deep in the strata are difficult to be degraded naturally, and will c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/10
CPCB09C1/10B09C1/00B09B2101/90B09C1/08
Inventor 李金灵李小康屈撑囤鱼涛杨博朱世东陈刚杜明明
Owner XI'AN PETROLEUM UNIVERSITY
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