CN110104892B - Vortex solidified underground water restoration system and restoration method thereof - Google Patents

Vortex solidified underground water restoration system and restoration method thereof Download PDF

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Publication number
CN110104892B
CN110104892B CN201910442285.7A CN201910442285A CN110104892B CN 110104892 B CN110104892 B CN 110104892B CN 201910442285 A CN201910442285 A CN 201910442285A CN 110104892 B CN110104892 B CN 110104892B
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water
pumping
water injection
well
wells
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CN110104892A (en
Inventor
彭新寿
刘来新
张纯波
祝清波
孙桂珍
赵琳琳
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Beijing Aidi Geological Investigation & Foundation Construction Co
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Beijing Aidi Geological Investigation & Foundation Construction Co
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
    • E03B3/08—Obtaining and confining water by means of wells
    • E03B3/10—Obtaining and confining water by means of wells by means of pit wells
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/32—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river
    • E03B3/34—Methods or installations for obtaining or collecting drinking water or tap water with artificial enrichment, e.g. by adding water from a pond or a river of underground water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06—Contaminated groundwater or leachate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/406—Aquifer recharge

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention relates to a swirl solidified groundwater repair system which is arranged at an area to be repaired of groundwater and comprises a pumping well, a water injection well and a fence, wherein the pumping well is arranged at the center of the repair area, a plurality of water injection wells are arranged at intervals along the outline of the repair area, inorganic inert adsorption materials are injected into the water injection wells, a closed adsorption material fence is formed outside the repair area, the water permeability of the adsorption material fence is good, and the height of the fence is at least the depth covered by polluted groundwater. The invention has the advantages of small water pumping amount, short period and wide treatment range.

Description

Vortex solidified underground water restoration system and restoration method thereof
Technical Field
The invention relates to the technical field of groundwater remediation, in particular to a vortex solidified groundwater remediation system and a remediation method thereof.
Background
Groundwater is a valuable fresh water resource for human beings, but with the continuous development of the social industrialization process, wastewater discharge, industrial waste residues, agricultural irrigation, landfill leakage, damage of transportation pipelines and storage tanks of petrochemical raw materials and the like are likely to cause groundwater pollution, so that the problem of shortage of originally tense water resources is more serious, and serious threat and challenge are formed by health, food safety, drinking water safety, regional ecological environment, sustainable development of economic society and social stability, and groundwater remediation is an environmental problem currently being concerned by the public and the society.
At present, the technology for repairing polluted underground water is commonly used as an extraction technology, wherein the extraction treatment is to pump out the underground water by adopting a water pump, obtain reasonable purification treatment on the ground, and re-inject the treated water into the ground or discharge the treated water into surface water bodies. The treatment mode can be used for efficiently removing pollutants in the extracted water. But does not guarantee an effective removal of all the contaminants in the groundwater, especially in the rock formations. Aiming at the pebble aquifer, the method has good water permeability and strong permeability, and has no better groundwater remediation method.
The prior art solutions described above have the following drawbacks: especially in the stratum with good permeability and strong permeability of the pebble aquifer, the extraction technology cannot ensure that all the pollutants of the underground water are effectively removed, and the water pumping capacity is large and the treatment period is long.
Disclosure of Invention
The first object of the invention is to provide a vortex solidified underground water restoration system, which can degrade and solidify pollutants in underground water through inorganic inert adsorption materials, is pumped out of a pumping well, is refilled into a water injection well through ground purification treatment, can effectively remove the pollutants in the underground water, and has the advantages of small water pumping amount and short treatment period.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a swirl solidification groundwater repair system, sets up in groundwater area department of waiting to repair, including pumping well, water injection well and rail, pumping well is seted up in repair area central point put, is provided with a plurality of water injection wells along repair area outline interval, pour into inorganic inert adsorption material in the water injection well and form the rail that encloses repair area, the high degree of the rail is the degree of depth that pollutes groundwater and cover at least.
By adopting the technical scheme, the large groundwater dropping funnel is formed in the repairing area by synchronously pumping water to the outside of the pumping well in a large-flow way, and the water injection well has the advantages of high groundwater head pressure, high flow speed and short treatment period; the dropping funnel can guide the inorganic inert adsorption material and the groundwater polluted by the repair area to the pumping well, under the action of the vortex, the inorganic inert adsorption material is mixed with the groundwater and degrades and solidifies pollutants in the groundwater, then the groundwater is pumped to the ground surface through the pumping well for treatment, and then the treated water is refilled into the water injection well, so that the water level in the water injection well is kept, the existence of pressure difference is ensured, the purification efficiency is ensured, and the pollutants in the groundwater can be effectively removed; simultaneously, because the water pumping and recharging are simultaneously carried out, a balanced circulation is formed, so that the water pumping and purifying only acts on the repairing area, and the water pumping quantity is small; the invention has the advantages of small water extraction amount, short period and capability of effectively removing pollutants in the underground water.
The invention is further provided with: the above-mentioned water-pumping well is characterized by that on the ground surface a filtering device for purifying water pumped from water-pumping well is set, the water inlet end of said filtering device is communicated with water-pumping well, and the water outlet end is communicated with water-injection well.
Through adopting above-mentioned technical scheme, filter equipment can purify the groundwater that draws in the pumping well, timely recharging is to the water injection well in, keeps the water level in the water injection well, ensures pressure differential's existence, guarantees purification efficiency.
The invention is further provided with: the filtering device comprises a sedimentation tank, a filtering tank and an anaerobic tank, wherein the pumping well is communicated with the sedimentation tank, the sedimentation tank is communicated with the filtering tank, the filtering tank is communicated with the anaerobic tank, and the anaerobic tank is connected with the water injection well.
Through adopting above-mentioned technical scheme, the water that draws through the pumping well carries out preliminary sedimentation through the sedimentation tank, then leads into the tiny granule in the filter tank filtration department groundwater, goes out through the anaerobism pond at last and goes out the organic pollutant in the groundwater, and the back-filling is in the water injection pond at last, and simple, quick purification groundwater improves the treatment rate of groundwater.
The invention is further provided with: the pumping wells are arranged in the middle of the repair area at intervals, and a pumping well group is formed in the center of the repair area by the pumping wells.
By adopting the technical scheme, the method is suitable for a large repair area and increases the treatment range of groundwater.
The invention is further provided with: the interval between the adjacent pumping wells is 4-7m.
Through adopting above-mentioned technical scheme, guarantee can interact between each pumping well to form great pressure differential, make the sewage in the repair area guide to pumping well department, then take out.
The invention is further provided with: the diameter of the pumping well is 20-40cm.
By adopting the technical scheme, the water pumping quantity of the pumping well and the speed of treating the underground water are ensured.
The invention is further provided with: the distance between the adjacent water injection wells is 2-4m.
By adopting the technical scheme, the proper water injection well spacing is selected according to different geological permeabilities, so that the inorganic inert adsorption materials in the adjacent water injection wells can be mutually diffused and meshed.
The invention is further provided with: the diameter of the water injection well is 20-40cm.
By adopting the technical scheme, the water injection well is ensured to bear the recharging water quantity in groundwater treatment.
The second object of the invention is to provide a vortex solidified groundwater remediation method, comprising the following steps:
s1, forming a pumping well group: a plurality of pumping wells are arranged at intervals in the middle of the repair area, the pumping wells are drilled below the underground water pollution layer, and a pumping well group is formed by the plurality of pumping wells;
s2, forming an annular recharging well group: a plurality of water injection wells are arranged at intervals along the outline of the repair area, and the water injection wells are drilled below the underground water pollution layer;
s3, forming a fence: injecting inorganic inert adsorption materials into each water injection well to form a fence, and enclosing the repair area by the fence;
s4, groundwater remediation: and (3) pumping water out of the pumping well in a large flow and a large descent, synchronously injecting water purified by the filtering device into the water injection well in a large flow, forming a descent funnel in the repairing area, guiding the polluted water and the inorganic inert adsorption cementing material for adsorbing and solidifying pollutants to the pumping well by the descent funnel to be pumped out, and then processing the pumped polluted water by the filtering device to recharge the polluted water into the water injection well again, thereby recycling the process until the polluted water is purified.
In summary, the beneficial technical effects of the invention are as follows:
1. the inorganic inert adsorption cementing material can degrade and solidify pollutants in the underground water by synchronously pumping water to the great depth of the pumping well and recharging the water injection well at a large flow rate, and the inorganic inert adsorption cementing material has the advantages of small water yield and short period;
2. by arranging the pumping well group, a large-scale repair area can be treated;
3. through setting up filter equipment, can purify the water that the pumping well was taken out, then timely recharge to the water injection well in, keep the water level in the water injection well, ensure pressure differential's existence, guarantee purification efficiency.
Drawings
FIG. 1 is a top view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure, 1, repairing area; 2. pumping well; 3. a water injection well; 4. pumping well group; 5. and (5) a fence.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1 and 2, the swirl solidified groundwater repair system disclosed by the invention is arranged at a groundwater to-be-repaired area 1 and comprises a pumping well 2, a water injection well 3 and a fence 5, wherein the pumping well 2 is arranged at the central position of the repair area 1, and the diameter is 20-40cm. The deep drill is arranged below the underground water pollution layer, and a water pump is arranged in the pumping well 2 and is used for pumping water outwards. A plurality of water injection wells 3 are uniformly arranged along the outer contour line of the repair area 1 at intervals, the diameter of each water injection well 3 is 20-40cm, and the distance between every two adjacent water injection wells 3 is 2-4m. The depth is less than the pumping well 2 after the underground water pollution layer is deeply drilled, and a plurality of water injection wells 3 form an annular recharging well group around the repairing area 1, wherein the distance between the water injection well 3 and the pumping well 2 is not more than 200m, and the distance between the pumping well 2 and the water injection well 3 can be properly increased or reduced according to the permeability coefficient of water in the water seepage stratum. And injecting inorganic inert adsorption material into the water injection well 3 by a high-pressure swirling method to form a fence 5 for enclosing the repair area 1, wherein the height of the fence 5 is at least the depth of the coverage of polluted underground water.
During construction, the pumping well 2 and the water injection well 3 are synchronously performed, the pumping well 2 is arranged in the repairing area 1, an annular recharging well group is established at the periphery of the repairing area 1, a large-scale deep pumping and large-flow recharging method is adopted, a large underground water dropping funnel is formed in the repairing area 1, and the underground water head is high in pressure and high in flow rate. The dropping funnel can guide the inorganic inert adsorption material and the groundwater polluted by the repair area 1 to the pumping well 2, under the action of vortex, the inorganic inert adsorption material is mixed with the groundwater to degrade and solidify pollutants in the groundwater, then the groundwater is pumped to the ground surface through the pumping well 2 to be treated, and then the treated water is refilled into the water injection well 3, so that the water level in the water injection well 3 is maintained, the existence of pressure difference is ensured, the purification efficiency is ensured, and the pollutants in the groundwater can be effectively removed.
The inorganic inert adsorbent material may be a carbonaceous adsorbent or a mineral adsorbent, depending on the contaminants in the groundwater. The carbonaceous adsorbent uses coal coke, petroleum coke, pitch coke or other carbonaceous materials as raw materials to produce active carbon, and is characterized by rich sources, stable yield and lower cost. The mineral material is prepared from natural rock and minerals through processing and modification, and has the characteristics of low cost, easy obtainment and high operability.
In order to ensure that the groundwater pumped in the pumping well 2 is purified and timely recharged into the water injection well 3, a filtering device for purifying the groundwater pumped in the pumping well 2 is arranged on the ground, the water inlet end of the filtering device is communicated with the pumping well 2, and the water outlet end is communicated with the water injection well 3.
The filtering device comprises a sedimentation tank, a filtering tank and an anaerobic tank, wherein the pumping well 2 is communicated with the sedimentation tank, the sedimentation tank is communicated with the filtering tank, the filtering tank is communicated with the anaerobic tank, the anaerobic tank is connected with the water injection well 3, and the sedimentation tank, the filtering tank and the anaerobic tank are all of the prior art and are not described repeatedly. The water pumped out by the pumping well 2 is subjected to preliminary precipitation by the sedimentation tank, then fine particles in the groundwater at the filtering position of the filtering tank are introduced, finally organic pollutants in the groundwater are removed by the anaerobic tank, and finally the water is refilled into the water filling tank, so that the groundwater is purified simply and quickly, and the groundwater treatment speed is improved.
When the area of the repair area 1 is large, the whole repair area 1 cannot be completely influenced by a dropping funnel formed by one pumping well 2, a plurality of pumping wells 2 are arranged in the middle of the repair area 1 at intervals, and the interval between every two adjacent pumping wells 2 is 4-7m. The plurality of pumping wells 2 pump water from the pumping well group 4 in the central stroke of the repair area 1, and the pumping well group 4 pumps water in a large flow by greatly lowering the depth outwards at the same time, and then the water is refilled into the water injection well 3 through the filtering device. Ensures the purification speed of the groundwater in the repair area 1 and shortens the treatment period.
The system is suitable for the strong permeable layer, and the pollutants in the groundwater are positioned at the upper part of the groundwater by 8-10m, and the treatment range is 800-1000m. The strong permeable layer is such as pebble aquifer, and has good permeability and strong permeability.
Embodiment two:
the invention discloses a method for repairing vortex solidified underground water, which comprises the following steps:
s1, forming a pumping well group 4: drilling and injecting a plurality of pumping wells 2 at intervals in the middle of the repair area 1, drilling the pumping wells 2 below the underground water pollution layer, and forming pumping well groups 4 by the plurality of pumping wells 2;
s2, forming an annular recharging well group: a plurality of water injection wells 3 are arranged at intervals along the outline of the repair area 1, and the water injection wells 3 are drilled below the groundwater pollution layer;
s3, forming a fence 5: injecting inorganic inert adsorption materials into each water injection well 3 by adopting a high-pressure jet grouting method to form a fence 5, and outwards diffusing the inorganic inert adsorption materials to enable the fence 5 to enclose the repair area 1;
s4, groundwater remediation: carrying out large-traffic, greatly lowering the deep pumping to the pumping well 2 outside, the large-traffic injection is taken out by pumping well 2 to the water injection well 3 in step, form the parachute in restoration region 1, the parachute can be with inorganic inert adsorption material and restoration region 1 contaminated groundwater to pumping well 2 department guide, under the effect of swirl, inorganic inert adsorption material mixes with groundwater and carries out degradation solidification to the pollutant in the groundwater, then take out the earth's surface through pumping well 2 and handle, again with the water recharge that has been handled in the water injection well 3, keep the water level in the water injection well 3, ensure pressure differential's existence, guarantee purification efficiency, can carry out effective removal with the pollutant in the groundwater. And circulating the process until the polluted water is purified. After purification, the groundwater pumped from the pumping well 2 is analyzed for quality, which meets the groundwater quality standard, and pumping and recharging can be stopped.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (7)

1. The utility model provides a swirl solidification groundwater repair system, sets up in groundwater area (1) department of waiting to repair, its characterized in that:
the water injection well (2) is arranged at the center of the repairing area (1), a plurality of water injection wells (3) are arranged at intervals along the outline of the repairing area (1), and the depth of the water injection wells (3) is shallower than that of the water injection wells (2) to form a dropping funnel;
inorganic inert adsorption materials are injected into the water injection well (3) to form a fence (5) for enclosing the repair area (1), and the height of the fence (5) is at least the depth covered by polluted underground water;
the water pumping well (2) is provided with a filtering device on the ground, the water inlet end of the filtering device is communicated with the water pumping well (2), the water outlet end of the filtering device is communicated with the water injection well (3), and the interval between the adjacent water injection wells (3) is 2-4m, so that the inorganic inert adsorption materials in the adjacent water injection wells (3) are mutually diffused and meshed.
2. A vortex cured groundwater remediation system according to claim 1 wherein: the filtering device comprises a sedimentation tank, a filtering tank and an anaerobic tank, wherein the pumping well (2) is communicated with the sedimentation tank, the sedimentation tank is communicated with the filtering tank, the filtering tank is communicated with the anaerobic tank, and the anaerobic tank is connected with the water injection well (3).
3. A vortex cured groundwater remediation system according to claim 1 wherein: the pumping wells (2) are arranged in the middle of the repairing area (1) at intervals, and a pumping well group (4) is formed in the center of the repairing area (1) by the pumping wells (2).
4. A vortex cured groundwater remediation system according to claim 3 wherein: the distance between the adjacent pumping wells (2) is 4-7m.
5. A vortex cured groundwater remediation system according to claim 3 wherein: the diameter of the pumping well (2) is 20-40cm.
6. A vortex cured groundwater remediation system according to claim 1 wherein: the diameter of the water injection well (3) is 20-40cm.
7. The vortex solidified underground water restoration method is characterized by comprising the following steps of:
s1, forming a pumping well group (4): a plurality of pumping wells (2) are arranged at intervals in the middle of the repair area (1), the pumping wells (2) are drilled below the underground water pollution layer, and a pumping well group (4) is formed by the plurality of pumping wells (2);
s2, forming an annular recharging well group: a plurality of water injection wells (3) are arranged at intervals along the outline of the repair area (1), and the water injection wells (3) are drilled below the underground water pollution layer;
s3, forming a fence (5): injecting inorganic inert adsorption materials into each water injection well (3) to form a fence (5), enclosing a repair area (1) by the fence (5), and selecting proper intervals of the water injection wells (3) according to different geological permeabilities so as to enable the inorganic inert adsorption materials in adjacent water injection wells to be mutually diffusion-meshed;
s4, groundwater remediation: carrying out large-flow and large-descending water pumping to the outside of the water pumping well (2), synchronously injecting water purified by the filtering device into the water injection well (3) at a large flow rate, forming a dropping funnel in the repairing area (1), guiding polluted water and inorganic inert adsorption materials for adsorbing and solidifying pollutants to the water pumping well (2) by the dropping funnel to be pumped out, then recharging the pumped polluted water into the water injection well (3) again through the filtering device treatment, and circulating the steps until the polluted water is purified.
CN201910442285.7A 2019-05-24 2019-05-24 Vortex solidified underground water restoration system and restoration method thereof Active CN110104892B (en)

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Publication number Priority date Publication date Assignee Title
CN110616772B (en) * 2019-09-11 2020-11-03 张沙莎 Recharge system for rainwater storage and monitoring and construction method of recharge system
CN111704180B (en) * 2020-06-18 2021-06-22 湖南恒凯环保科技投资有限公司 In-situ injection device and process for strengthening groundwater pollution remediation
CN113461124B (en) * 2021-06-17 2023-04-07 岩土科技股份有限公司 Ectopic treatment method for polluted underground water

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CN107720853A (en) * 2017-11-20 2018-02-23 中国环境科学研究院 DNAPL pollution amelioration system and method in underground water based on pollution resistance control
CN107917544A (en) * 2017-10-18 2018-04-17 浙江大学宁波理工学院 Enclose well rotation flow and take out the distribution of filling gang of wells and well control method of having a rest
CN210012715U (en) * 2019-05-24 2020-02-04 北京爱地地质勘察基础工程公司 Vortex solidification groundwater repair system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202832395U (en) * 2012-09-18 2013-03-27 中国石油天然气股份有限公司 High-pressure jet chemical adding device for wellhead of water injection well
JP2015217351A (en) * 2014-05-19 2015-12-07 株式会社大林組 Groundwater purification system and groundwater purification method
CN106186123A (en) * 2016-09-19 2016-12-07 北京德瑞科森环保科技有限公司 Hypotonicity contaminated site circulation controllable groundwater remediation system and restorative procedure
CN107917544A (en) * 2017-10-18 2018-04-17 浙江大学宁波理工学院 Enclose well rotation flow and take out the distribution of filling gang of wells and well control method of having a rest
CN107720853A (en) * 2017-11-20 2018-02-23 中国环境科学研究院 DNAPL pollution amelioration system and method in underground water based on pollution resistance control
CN210012715U (en) * 2019-05-24 2020-02-04 北京爱地地质勘察基础工程公司 Vortex solidification groundwater repair system

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