CN213613318U - Horizontal extraction gas injection well for biological ventilation - Google Patents
Horizontal extraction gas injection well for biological ventilation Download PDFInfo
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- CN213613318U CN213613318U CN202022458050.8U CN202022458050U CN213613318U CN 213613318 U CN213613318 U CN 213613318U CN 202022458050 U CN202022458050 U CN 202022458050U CN 213613318 U CN213613318 U CN 213613318U
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- 238000002347 injection Methods 0.000 title claims abstract description 107
- 239000007924 injection Substances 0.000 title claims abstract description 107
- 238000000605 extraction Methods 0.000 title claims abstract description 102
- 238000009423 ventilation Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 76
- 239000002689 soil Substances 0.000 description 20
- 239000002957 persistent organic pollutant Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007857 degradation product Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a horizontal extraction gas injection well for biological ventilation, which comprises an extraction gas injection well (1), a gas injection pipe (2), an extraction pipe (3), a first sieve pipe (4) and a second sieve pipe (5); the bottom of the extraction gas injection well horizontally extends to one side to form a gas injection horizontal well (11), the bottom of the extraction gas injection well horizontally extends to the other side to form an extraction horizontal well (12), and the gas injection horizontal well and the extraction horizontal well are positioned in a gas inclusion zone; the gas injection pipe and the extraction pipe are arranged in the extraction gas injection well, one end of the gas injection pipe is communicated with a first sieve pipe in the gas injection horizontal well, the other end of the gas injection pipe is arranged outside the extraction gas injection well and is externally connected with gas injection equipment, one end of the extraction pipe is communicated with a second sieve pipe in the extraction horizontal well, and the other end of the extraction pipe is arranged outside the extraction gas injection well and is externally connected with extraction equipment. The utility model discloses set up gas injection well and extraction well into the horizontal well, can improve its influence range and repair efficiency to reduce the quantity of well, realize simultaneously reducing laying and connecting of ground pipeline.
Description
Technical Field
The utility model relates to a contaminated site repair equipment especially relates to a gas injection well is extracted to level for biological ventilation.
Background
Various toxic and harmful chemicals are widely used in the fields of chemical industry and the like, but the situation of environmental pollution caused by improper management of the toxic and harmful chemicals happens occasionally. Solid waste is stacked and dumped on the soil surface to cause harmful wastewater to permeate into soil, waste gas discharged by automobiles, harmful gas and floating dust in the atmosphere settle in the soil along with rainwater, and a large amount of chemical fertilizers and pesticides are used, so that the soil is polluted more and more, the pollution degree is more and more serious, the pollution area is continuously enlarged, and the ecological environment and the human health are seriously threatened.
For polluted soil, if the polluted soil is purified and restored by itself, the time is dozens of years or even hundreds of years, so that the restoration by adopting engineering technical means is the most rapid, thorough and stable measure. Wherein, the soil biological ventilation technology is an economic and effective method for removing organic pollutants in a soil aeration zone (the aeration zone refers to a zone which is positioned below the ground and above a diving surface), air or oxygen is supplied to the soil through a special underground gas injection extraction well system, and the degradation of the pollutants is promoted by the aerobic activity of microorganisms; meanwhile, the pressure gradient in the soil is utilized to promote the volatile organic compounds and the degradation products to flow to an extraction well, and the volatile organic compounds and the degradation products are extracted, collected and post-treated, so that the purpose of treating the polluted soil is achieved.
The gas injection extraction well system in the prior art has a complex structure and high construction difficulty; and gas injection well and extraction well of prior art are vertical well structure mostly, and the gas injection, the inefficiency of extraction, pollutant degradation purification efficiency is lower, and the effect of polluting soil improvement is relatively poor, consequently need set up a large amount of gas injection well and lift-well, and the cost is higher relatively.
Disclosure of Invention
An object of the utility model is to provide a gas injection well is extracted to level for biological ventilation sets up gas injection well and extraction well into the horizontal well, can improve its influence range and repair efficiency to reduce the quantity of well, realize simultaneously reducing laying and connecting of ground pipeline.
The utility model discloses a realize like this:
a horizontal extraction gas injection well for biological ventilation comprises an extraction gas injection well, a gas injection pipe, an extraction pipe, a first sieve pipe and a second sieve pipe; the bottom of the extraction gas injection well horizontally extends to one side to form a gas injection horizontal well, the bottom of the extraction gas injection well horizontally extends to the other side to form an extraction horizontal well, so that the extraction gas injection well forms an inverted T-shaped horizontal well structure with a closed top, and the gas injection horizontal well and the extraction horizontal well are both positioned in a gas-covered zone; the gas injection pipe and the extraction pipe are arranged in the extraction gas injection well, one end of the gas injection pipe is communicated with a first sieve pipe arranged in the gas injection horizontal well, the other end of the gas injection pipe extends to the outside of the extraction gas injection well and is externally connected with gas injection equipment, one end of the extraction pipe is communicated with a second sieve pipe arranged in the extraction horizontal well, and the other end of the extraction pipe extends to the outside of the extraction gas injection well and is externally connected with extraction equipment; the first sieve tube and the second sieve tube are uniformly provided with sieve holes.
And filling materials are filled in a gap between the first sieve tube and the gas injection horizontal well.
And filling materials are filled in a gap between the second sieve tube and the extraction horizontal well.
The filling material is a mixture of quartz sand and bentonite.
The other end of the gas injection pipe and the other end of the extraction pipe are arranged above the ground through a pipeline bracket.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses set up gas injection well and extraction well into the horizontal well, can improve its influence range and repair efficiency to reduce the quantity of well, realize reducing laying and connecting of ground pipeline simultaneously, feasibility and practicality are high, and operation and construction are convenient, and are with low costs, and the treatment effeciency is high.
2. The utility model discloses both can regard as in the vapor extraction repair system to extract the well use, also can advance as the gas injection and extract the well combined use in the biological expert repair system, be applicable to volatility and semi-volatile organic pollution's place, and can realize high-efficient accurate extraction to the place that only deep pollution pollutes.
Drawings
FIG. 1 is a cross-sectional view of a horizontal extraction gas injection well for biological ventilation according to the present invention.
In the figure, 1 gas injection well, 11 gas injection horizontal well, 12 extraction horizontal well, 2 gas injection pipe, 3 drawer pipe, 4 first sieve pipe, 5 second sieve pipe, 6 filling material, 7 pipeline bracket.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, a horizontal extraction gas injection well for biological ventilation comprises an extraction gas injection well 1, a gas injection pipe 2, an extraction pipe 3, a first sieve pipe 4 and a second sieve pipe 5; the bottom of the extraction gas injection well 1 horizontally extends to one side to form a gas injection horizontal well 11, the bottom of the extraction gas injection well 1 horizontally extends to the other side to form an extraction horizontal well 12, so that the extraction gas injection well 1 forms an inverted T-shaped horizontal well structure with a closed top, the contact area of air and soil during gas injection can be increased, the efficiency of extracting air is improved, the arrangement number of the extraction gas injection wells 1 is reduced, the construction difficulty is reduced, and the gas injection horizontal well 11 and the extraction horizontal well 12 are both positioned in an air-wrapping zone, so that the effectiveness of air or oxygen injection and organic gas extraction is ensured; the gas injection pipe 2 and the extraction pipe 3 are both arranged in the extraction gas injection well 1, one end of the gas injection pipe 2 is communicated with a first sieve pipe 4 arranged in a gas injection horizontal well 11, the other end of the gas injection pipe 2 extends to the outside of the extraction gas injection well 1 and is externally connected with gas injection equipment for gas injection operation and forming pressure gradient in soil, one end of the extraction pipe 3 is communicated with a second sieve pipe 5 arranged in an extraction horizontal well 12, and the other end of the extraction pipe 3 extends to the outside of the extraction gas injection well 1 and is externally connected with extraction equipment for extraction operation of organic gas generated after purification; the first sieve pipe 4 and the second sieve pipe 5 are uniformly distributed with sieve holes, and the smooth flow of air in the operations of gas injection and extraction is realized through the sieve holes.
Filling materials 6 are filled in a gap between the first sieve tube 4 and the gas injection horizontal well 11; the gap between the second sieve tube 5 and the extraction horizontal well 12 is filled with the filling material 6, and the filling material 6 can improve the installation stability of the first sieve tube 4 and the second sieve tube 5 and keep the effective contact of air and soil under the condition of not influencing the ventilation efficiency of sieve pores, thereby ensuring the high-efficiency degradation of volatile and semi-volatile pollutants in the soil.
Preferably, the filling material 6 is a mixture of quartz sand and bentonite, which has a certain strength and can play the role of effectively supporting and stabilizing the first sieve tube 4 and the second sieve tube 5, the particle size of the quartz sand and the bentonite should be larger than the aperture of the sieve pores, or the surface of the sieve pores is coated with interlayers which can supply gas to circulate, such as geotextile, and the like, so that the filling material 6 can be prevented from blocking the sieve pores of the first sieve tube 4 and the second sieve tube 5, the flowing efficiency of air is ensured, and the effectiveness of gas injection and extraction operation is ensured.
The other end of the gas injection pipe 2 and the other end of the extraction pipe 3 are arranged above the ground through a pipeline bracket 7, so that the installation stability of the gas injection pipe 2 and the extraction pipe 3 is further ensured, and the safety of gas injection and extraction operation is ensured.
Preferably, the gas injection device can adopt a blower, the power of the blower can be determined according to the flow requirement of gas injection, the extraction device can adopt a vacuum pump, and the power of the vacuum pump can be determined according to the flow requirement of extraction so as to meet the requirements of gas injection and extraction.
The utility model discloses a theory of operation that is used for gas injection well is extracted to biological ventilation's level is:
working principle of gas injection operation: air enters the gas injection horizontal well 11 through the gas injection pipe 2 by a blower and other gas injection equipment through the first sieve pipe 4, and enters soil through the sieve pores of the first sieve pipe 4, so that the air forms circulation in the soil, and because the top of the extraction gas injection well 1 is closed, the pressure generated by injected air can promote the gas in the aeration zone to flow, so that the microorganisms can aerobically breathe and decompose organic pollutants, and volatile and semi-volatile organic pollutants in the organic pollutants are removed.
The working principle of the extraction operation is as follows: organic pollutants or organic gas generated by aerobic respiration of microorganisms enters the extraction pipe 3 through the second sieve pipe 5 in the extraction horizontal well 12, and the organic gas is extracted to a ground treatment system by extraction equipment such as a vacuum pump, so that subsequent unified treatment or reutilization of the organic gas is facilitated, the organic pollutants in a soil aeration zone can be economically and effectively removed, the purpose of cleaning soil is achieved, and secondary pollution of the organic gas to the environment can be prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. A horizontal extraction gas injection well for biological ventilation is characterized in that: comprises an extraction gas injection well (1), a gas injection pipe (2), an extraction pipe (3), a first sieve pipe (4) and a second sieve pipe (5); the bottom of the extraction gas injection well (1) horizontally extends to one side to form a gas injection horizontal well (11), the bottom of the extraction gas injection well (1) horizontally extends to the other side to form an extraction horizontal well (12), so that the extraction gas injection well (1) forms an inverted T-shaped horizontal well structure with a closed top, and the gas injection horizontal well (11) and the extraction horizontal well (12) are both positioned in a gas-covered zone; the gas injection pipe (2) and the extraction pipe (3) are both arranged in the extraction gas injection well (1), one end of the gas injection pipe (2) is communicated with a first sieve pipe (4) arranged in a gas injection horizontal well (11), the other end of the gas injection pipe (2) extends to the outside of the extraction gas injection well (1) and is externally connected with gas injection equipment, one end of the extraction pipe (3) is communicated with a second sieve pipe (5) arranged in an extraction horizontal well (12), and the other end of the extraction pipe (3) extends to the outside of the extraction gas injection well (1) and is externally connected with extraction equipment; sieve holes are uniformly distributed on the first sieve tube (4) and the second sieve tube (5).
2. The horizontal extraction gas injection well for biological ventilation of claim 1, wherein: and a gap between the first sieve tube (4) and the gas injection horizontal well (11) is filled with filling materials (6).
3. The horizontal extraction gas injection well for biological ventilation of claim 1, wherein: and a gap between the second sieve pipe (5) and the extraction horizontal well (12) is filled with a filling material (6).
4. The horizontal extraction gas injection well for biological ventilation according to claim 2 or 3, characterized in that: the filling material (6) is a mixture of quartz sand and bentonite.
5. The horizontal extraction gas injection well for biological ventilation of claim 1, wherein: the other end of the gas injection pipe (2) and the other end of the extraction pipe (3) are arranged above the ground through a pipeline bracket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022458050.8U CN213613318U (en) | 2020-10-30 | 2020-10-30 | Horizontal extraction gas injection well for biological ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022458050.8U CN213613318U (en) | 2020-10-30 | 2020-10-30 | Horizontal extraction gas injection well for biological ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213613318U true CN213613318U (en) | 2021-07-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022458050.8U Active CN213613318U (en) | 2020-10-30 | 2020-10-30 | Horizontal extraction gas injection well for biological ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213613318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758925A (en) * | 2021-09-27 | 2021-12-07 | 清华大学 | Two-dimensional observation system and method for movement of colored nano material in water body |
| CN115502194A (en) * | 2022-08-10 | 2022-12-23 | 南京工业大学 | Method for repairing polluted site based on directional bedding drilling multiphase extraction technology |
-
2020
- 2020-10-30 CN CN202022458050.8U patent/CN213613318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758925A (en) * | 2021-09-27 | 2021-12-07 | 清华大学 | Two-dimensional observation system and method for movement of colored nano material in water body |
| CN115502194A (en) * | 2022-08-10 | 2022-12-23 | 南京工业大学 | Method for repairing polluted site based on directional bedding drilling multiphase extraction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240618 Address after: Room 101, 4th Floor, Building 1, No. 10 Yongchang East Fourth Road, Beijing Economic and Technological Development Zone, Chaoyang District, Beijing, 100022 Patentee after: Senteshixing Environmental Protection Technology Co.,Ltd. Country or region after: China Address before: 201306 building C, No. 888, Huanhu West 2nd Road, Lingang New District, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: China Construction Eighth Bureau Environmental Protection Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 100176 Room 101, floor 4, building 1, courtyard 10, Yongchang East Fourth Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Senteshixing Environmental Protection Technology Co.,Ltd. Country or region after: China Address before: Room 101, 4th Floor, Building 1, No. 10 Yongchang East Fourth Road, Beijing Economic and Technological Development Zone, Chaoyang District, Beijing, 100022 Patentee before: Senteshixing Environmental Protection Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |