CN108314106A - A kind of underground water in-situ remediation method polluted by DNAPL - Google Patents
A kind of underground water in-situ remediation method polluted by DNAPL Download PDFInfo
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Abstract
The invention discloses a kind of underground water in-situ remediation methods polluted by DNAPL, belong to soil and underground water pollution control technology field.A kind of underground water in-situ remediation system polluted by DNAPL of the present invention, including drilling well, filter device, single pump extraction device and water filling device；Filter device includes concrete layer, bentonite bed and back-up sand layer, and is set in turn in drilling well from top to bottom；Single pump extraction device includes liquid ring pump, extraction tube, grating screen casing and well casing；Water filling device includes water injection pipe, gas vent and water injecting pump, and water injection pipe one end is inserted into inside well casing, and the other end is connect on ground with water injecting pump, and is fixed on the upper surface of well casing；Gas vent is arranged in well casing upper surface.A kind of underground water in-situ remediation system application process polluted by DNAPL of the present invention, solves that prior art extracting depth is limited, can not determine that extracting position, extracting such as are not thorough at the problems, has many advantages, such as that wide application, extraction efficiency are high.
Description
The present patent application is divisional application, parent application number：2014108173333；Female case title：One kind is by DNAPL dirts
The underground water in-situ remediation system and its application process of dye；Parent application day：2014-12-24.
Technical field
The invention belongs to soil and underground water pollution control technology field, specifically, being related to a kind of being polluted by DNAPL
Underground water in-situ remediation method.
Background technology
Soil refers to because human factor will either intentionally or unintentionally have mankind itself and other life entities with underground water pollution
Harmful substance is applied in soil, and the content of its certain ingredient is made to be more than soil and underground water self-purification capacity or be apparently higher than soil
Earth and groundwater environment benchmark or soil and groundwater environment standard, and soil is caused to show with what Groundwater Environmental Quality deteriorated
As.The environmental problem of China's soil and underground water pollution seriously constrains the sustainable development of society than more serious at present, because
This is by the increasingly extensive concern of country.Especially recent State Council formally gives an written reply《National pollution prevention plan
(2011-2020)》, general plan is made that national underground water pollution preventing and controlling for the first time.
The main source of soil and underground water pollution can substantially be divided into：The discharge of industrial waste gas, waste water and waste residue；Agriculture
A large amount of uses of the chemicals such as medicine, chemical fertilizer；Sewage irrigation.The harm of soil pollution mainly has：Under crop production reduction and quality
Drop, drinking water source are contaminated, and health is on the hazard；Pollutant accumulates in crops, and people is enriched in via food chain
Body；And leads to atmosphere pollution, surface water pollution, underground water pollution and ecosystem degradation etc. other secondary ecological environments are asked
Topic.
Dense non-aqueous phase liquids (Dense Non-Aqueous Phase Liquid, DNAPL) are by one or more in itself
Liquid organic compound composition, the formation in underground water is usually to have larger quantity, mostly leakage and a large amount of rows
Caused by putting.Since DNAPL has the characteristics that high density, low interfacial tension, refractory organics, the saturated aqueous system of unsaturation-can be penetrated
It unites and is trapped in water-bearing layer bottom, therefore, DNAPL is a lasting pollution sources in underground water, itself and dissolving are wherein
Pollutant can constantly be dissolved in polluted underground water and water-bearing layer soil in underground water.In consideration of it, in general contaminated site
In reparation, the presence for whether having DNAPL in place need to be first checked for, can carry out subsequent repair if there is should first remove it
Multiple, the soil after otherwise repairing still can again be polluted with underground water by it.
China Patent Publication No.：202539176U, publication date：The patent document on November 21st, 2012 discloses a kind of soil
Earth extracts disposal plant with underground water volatile organic matter original position multiphase.The utility model is by extraction well system, extracting and gas-liquid
Piece-rate system and exhaust gas purification system composition.Volatile contaminant in soil and groundwater is in vortex air pump and Roots vaccum pump
Under the suction function of generation, gas-liquid separation is carried out by extraction well system sucking centrifugal gas-liquid separator, after dehydration and drying
Gas be introduced into filter filtering, enter back into gas-liquid separated active carbon adsorber by vortex pump and Roots vaccum pump,
Adsorption cleaning is carried out to the pollutant in gas by activated carbon, the gas purified is discharged through pipeline from exhaust tube.Three sets of systems
It is combined application, the extraction to contaminated soil and volatile organic contaminant in underground water can be reached and is purified again
Processing, the effect of qualified discharge, and secondary pollution is not generated, can reach extraordinary reparation to typical industry contaminated site imitates
Fruit.The utility model applies negative pressure by vacuum pump, is pulled water out using atmospheric pressure, so even in the ideal case, to water
Extracting depth can not be more than 10 meters (away from well heads).For the DNAPL that density is larger, extracting depth can be more shallow.
China Patent Publication No.：103926172A, publication date：The patent document on July 16th, 2014 discloses a kind of use
In the experimental provision and method of simulating the surfactant enhanced remediation process of DNAPL pollutants in water-bearing layer.The invention uses
Two-dimensional visualization sandbox modeling water-bearing layer directly can observe and record DNAPL Pollution Plumes in the migration of vertical and horizontal direction, and
The diffusion area variation for quantitatively calculating pollutant has intuitive visual in remediation efficiency estimation and contaminant transportation risk control
Change advantage, can be in the type and its concentration of engineering optimize technique early period especially preferred surfactant.But in the invention
Water filling be and surfactant to be introduced for the water in replenishment system by water filling and is imitated to the reparation of DNAPL with improving it
Fruit, and water filling and draw water and be not belonging to same water source, role and the effect in patent of the present invention are entirely different.
Invention content
1. technical problems to be solved
For existing in the prior art when being stripped processing to DNAPL, exist extracting depth it is limited, can not determine
Position is extracted, the deficiencies of being not thorough is extracted, the present invention provides a kind of underground water in-situ remediation methods polluted by DNAPL.This
The purpose for inventing DNAPL substances in the underground water that recycling relatively deep may be implemented, can be widely applied to by DNAPL impurely
The reparation of lower water.
2. technical solution
Inventive principle：The extraction device of the prior art is to apply negative pressure by vacuum pump, using atmospheric pressure by pollution medium
The technology of extraction, even if thus can not be more than 10 meters to the extracting depth of water in the case where vacuum degree is zero；For density
DNAPL larger and more than water, extracting depth can be more shallow.Extraction device in extractive process, well water position can slowly decline and
Cause to extract it is more and more difficult, in order to avoid the decline of water level, the present invention in parallel water injection pipe by extraction tube, by interval or
Continuous water filling increases the water surface elevation above DNAPL, and then greatly extracts DNAPL out by hydraulic pressure.Theoretically, can
The extracting depth of DNAPL is increased to 30 meters or more, is particularly suitable for China Yangtze river basin and the shallower area of southern underground water buried depth
Earth formation.
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of underground water in-situ remediation system polluted by DNAPL, including drilling well, filter device and single pump extraction device,
It further include water filling device；Wherein：The filter device includes concrete layer, bentonite bed and back-up sand layer, and from top to bottom according to
It is secondary to be set in drilling well；The bentonite bed is provided with static water line；Single pump extraction device includes Breakup of Liquid Ring
Formula pump, extraction tube, grating screen casing and well casing, wherein：The grating screen casing and well casing are linked to be one integrally through concrete layer
Be embedded in back-up sand layer with bentonite bed, and using static water line as line of demarcation in well casing in structure upper, that grating screen casing is under；Institute
The extraction tube one end stated is inserted into the bottom of grating screen casing, and the other end is connect on ground with liquid ring pump, and is fixed on well casing
Upper surface；The water filling device includes water injection pipe, gas vent and water injecting pump, and water injection pipe one end is inserted into inside well casing, separately
One end is connect on ground with water injecting pump, and is fixed on the upper surface of well casing；Gas vent is arranged in well casing upper surface.
Preferably, the extraction tube is provided with vacuum meter in the part on ground.
Preferably, one end of the bottom of extraction tube insertion grating screen casing is provided with tactile water induction probe.
Preferably, the water filling device further includes the injection flow control mechanism for making water level be no more than static water line.
Preferably, the injection flow control mechanism is integrally fixed at the water level sensor of water injection pipe bottom end；The note
Water pump is variable frequency pump.
Preferably, the grating screen casing and well casing material are polyvinyl chloride.
A kind of underground water in-situ remediation method polluted by DNAPL, step are：
A, selection has the plot by the DNAPL underground water polluted to get drilling well, the grating screen casing and well being first connected
Pipe in grating screen casing under, well casing upper edge drilling well median vertical line be inserted into drilling well inside；
B, back-up sand layer, bentonite bed and concrete layer are successively filled inside drilling well, and grating screen casing and well casing are fixed
In drilling well；
C, extraction tube and water injection pipe are sequentially inserted into well casing and are fixed on the upper surface of well casing, wherein：Extraction tube is inserted into
The inside of grating screen casing；Water injection pipe is inserted into the position of static water line；
D, extracting start before first pass through control extraction device air bleeding valve system vacuum is adjusted to it is minimum, extracting start after
Flow control will be extracted in the range of setting by gradually increasing vacuum degree；
E, when extracting flow velocity reduction, water injection pipe starts the water filling into drilling well, and control water filling flow velocity is suitable with extracting flow velocity,
And it controls water level in well and is no more than static water line；
F, stop extracting in the presence of no DNAPL and wait for DNAPL reflux, or shift to lower a bite drilling extraction and carry.
Preferably, in the step E, surfactant is injected into drilling well by water injection pipe.
3. advantageous effect
Compared with prior art, the beneficial effects of the invention are as follows：
(1) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, it is single to pump extraction device and water filling device
It is used cooperatively, when underground water of DNA plerosis PL pollution can deepen to extract depth, and the light carrying of single pump extraction device, machine
It is dynamic flexible, convenient and efficient；Being used cooperatively for back-up sand layer and grating screen casing, can effectively prevent pipeline blockage；
(2) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, the setting of vacuum meter can be effective
It controls extraction efficiency and grasps waterflood timing；
(3) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, touching water induction probe can be more square
Just the position of DNAPL is effectively determined；
(4) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, injection flow control mechanism make
With liquid level can be allowed to keep hydraulic pressure, ensure the normal operation of single pump extraction device；
(5) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, water level sensor and variable frequency pump
It uses, significantly more efficient can ensure the uniform extraction effect of single pump extraction device, and can be with using water wisely and electricity consumption；
(6) a kind of underground water in-situ remediation system polluted by DNAPL of the invention, polyvinyl chloride chemical property are stablized,
It is corrosion-resistant, effectively avoid grating screen casing and well casing from being corroded by DNAPL；
(7) a kind of underground water in-situ remediation method polluted by DNAPL of the invention, since equipment is light, mobility strong,
It repairs step operation to be easily understood, work efficiency is high, can thoroughly repair the underground water polluted by DNAPL in situ；
(8) a kind of underground water in-situ remediation method polluted by DNAPL of the invention, the application of surfactant can drop
Low DNA PL surface tension improves extraction efficiency；
(9) a kind of underground water in-situ remediation method by DNAPL pollutions of the invention theoretically can be by the pumping of DNAPL
It puies forward depth and increases to 30 meters or more, be particularly suitable for the earth formation of China Yangtze river basin and the shallower area of southern underground water buried depth,
Wide application.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the well casing upper surface vertical view of the present invention.
Label declaration in schematic diagram：1, drilling well；7, static water line；8, water induction probe is touched；11, back-up sand layer；15, swollen
Moisten soil layer；16, concrete layer；21, liquid ring pump；22, extraction tube；23, grating screen casing；24, well casing；26, vacuum meter；31、
Water injection pipe；33, gas vent；34, water injecting pump；35, water level sensor.
Specific implementation mode
With reference to the accompanying drawings of the specification and specific embodiment, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of underground water in-situ remediation system polluted by DNAPL of the present embodiment, including drilling well 1, mistake
Device and single pump extraction device are filtered, further includes water filling device；Wherein：The filter device includes concrete layer 16, bentonite
Layer 15 and back-up sand layer 11, and be set in turn in from top to bottom in drilling well 1；The bentonite bed 15 is provided with static water line
7；Described single pump extraction device includes liquid ring pump 21, extraction tube 22, grating screen casing 23 and well casing 24, wherein：Described
Liquid ring pump 21 is water-ring vacuum pump, model 2,BV2 060, flow 27m3/ h, vacuum degree are 20000 pas, power
1.1kw, rated voltage 380V；The grating screen casing 23 and well casing 24 is linked to be one integrally through concrete layer 16 and bentonite
Layer 15 is embedded in back-up sand layer 11, and is line of demarcation in well casing 24 in structure upper, that grating screen casing 23 is under with static water line 7,
Grating screen casing 23 is one section of 4.5~9.0m of underground, and material is hard PVC, and surface contains horizontal fine crack, and fine crack width is 0.25mm,
Bottom is closed；Well casing 24 is the hard PVC that internal diameter is 70mm；Described 22 one end of extraction tube is inserted into the bottom of grating screen casing 23
Portion, and bottom is provided with tactile water induction probe 8, the other end is connect on ground with liquid ring pump 21, as shown in Fig. 2, and solid
It is scheduled on the upper surface of well casing 24, extraction tube 22 is long 15m, and the vacuum hose of outer diameter 25mm is provided with vacuum in the part on ground
Meter 26；The water filling device includes water injection pipe 31, gas vent 33 and water injecting pump 34, wherein：31 one end of water injection pipe is inserted into well
Inside pipe 24, and it is fixed with water level sensor 35 in 31 bottom end of water injection pipe, the other end is connect on ground with water injecting pump 34, and fixed
In the upper surface of well casing 24, water injection pipe 31 is long 10m, the water filling hose of outer diameter 15mm；Gas vent 33 is arranged in 24 upper end of well casing
Face, water injecting pump 34 are variable frequency pump.
A kind of underground water in-situ remediation method polluted by DNAPL of the present embodiment, step are：
A, it is discarded at insecticide factory one for plot by East China, after testing, Features of Shallow Groundwater is away from earth's surface in the place
1.2~1.9m, DNAPL depth (surface layer is far from ground) about 7.9m, there are about 130cm for DNAPL thickness；The drilling well of 12m depths is got first
1, first by the grating screen casing 23 being connected and well casing 24 in grating screen casing 23 under, well casing 24 upper edge drilling well 1 it is vertical in
Line is inserted into inside drilling well 1；
B, back-up sand layer 11, bentonite bed 15 and concrete layer 16 are successively filled inside drilling well 1, and by 23 He of grating screen casing
Well casing 24 is fixed in drilling well 1, wherein：The cleaning quartz sand backfill that back-up sand layer 11 is grain size >=0.25mm is used as drainage layer, rises
Filtration is backfilled at phreatic line, and 11 top of back-up sand layer backfills fluid-tight bentonite bed 15 again, plays suction-operated,
Last concrete layer 16 is at being backfilled to nature terrace with cement mortar at well head, to play fixed function；
C, extraction tube 22 and water injection pipe 31 are sequentially inserted into well casing 24 and are fixed on the upper surface of well casing 24, wherein：Extracting
Pipe 22 is inserted into the inside of grating screen casing 23；Water injection pipe 31 is inserted into the position of static water line 7；
D, the air bleeding valve for controlling water-ring vacuum pump is deflated before extracting starts and is opened, vacuum degree is minimum, after extracting starts
Vacuum degree is gradually tuned up, until it is 0.08L/s to stablize flow velocity；
E, with the reduction of water level in well and the increase of DNAPL ratios, extracting flow velocity once very slowly (<0.01L/
S), water injection pipe 31 starts the water filling into drilling well 1, and control water filling flow velocity is suitable with extracting flow velocity, and the water surface is made to maintain away from earth's surface
3.2m or so is no more than static water line 7 by touching water level in 8 control wells of water induction probe；And by water injection pipe 31 to brill
Surfactant is injected in well 1；Flow velocity is extracted after water filling to increase obviously, reaches 0.055L/s；The fluid extracted enters liquid-liquid
It is separated and recovered in knockout drum；
F, stop extracting in the presence of water level sensor 35 incudes without DNAPL and wait for DNAPL reflux, or shift to lower a bite and bore
Well 1 extracts.
Embodiment 2
A kind of basic structure of underground water in-situ remediation system by DNAPL pollutions of the present embodiment is different with embodiment 1
Place is：21 model of liquid ring pump：1WZB-35；Lift is 6m before pump；
A kind of underground water in-situ remediation system by DNAPL pollutions of the present embodiment is applied to the retired factory in Nanjing, warp
Detect the place level of ground water about 1.38m, there are about 1.3m on the water surface, there is the DNAPL of 0.8m thickness in underwater；
A kind of underground water in-situ remediation method polluted by DNAPL of the present embodiment, basic step are different with embodiment 1
Place is：1 depth 6m of drilling well；Extracting is first stripped floating material before starting, and after the completion of floating material extracts substantially, grating is sieved
23 nozzle of pipe is at shaft bottom；The rising with DNAPL in pipe after starting is extracted, extracting flow velocity is relatively slowly (about 0.03L/s)；This
When start water filling, so that the water surface is maintained away from earth's surface 1.5m or so, flow velocity extracted after water filling and increases apparent, reaches 0.045L/s；It takes out
The fluid of proposition imports liquid-collecting barrel recycling.
Schematically the invention and embodiments thereof are described above, description is not limiting, attached drawing
Shown in also be the invention one of embodiment, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, in the case where not departing from this creation objective, not inventively design and the technology
The similar frame mode of scheme and embodiment, should all belong to the protection domain of this patent.
Claims (2)
1. a kind of underground water in-situ remediation method polluted by DNAPL, step are：
A, selection has the plot by the DNAPL underground water polluted to get drilling well (1), first by the grating screen casing (23) being connected and
Well casing (24) in grating screen casing (23) under, that well casing (24) in the median vertical line of upper edge drilling well (1) is inserted into drilling well (1) is internal；
B, back-up sand layer (11), bentonite bed (15) and concrete layer (16) are successively filled inside the drilling well (1), and by grating screen casing
(23) it is fixed in drilling well (1) with well casing (24)；
C, extraction tube (22) and water injection pipe (31) are sequentially inserted into well casing (24) and are fixed on the upper surface of well casing (24), wherein：
Extraction tube (22) is inserted into the inside of grating screen casing (23)；Water injection pipe (31) is inserted into the position of static water line (7)；
D, extracting first passed through before starting the single pump extraction device of control air bleeding valve system vacuum is adjusted to it is minimum, after extracting starts
Flow control will be extracted in the range of setting by gradually increasing vacuum degree；
E, when extracting flow velocity reduction, water injection pipe (31) starts to drilling well (1) interior water filling, control water filling flow velocity and extracting flow velocity phase
When, and control water level in well and be no more than static water line (7)；
F, stop extracting in the presence of no DNAPL and wait for DNAPL reflux, or shift to lower a bite drilling well (1) extracting.
2. the underground water in-situ remediation method according to claim 1 polluted by DNAPL, it is characterised in that：The step
In rapid E, surfactant is injected into drilling well (1) by water injection pipe (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258558.8A CN108314106B (en) | 2014-12-24 | 2014-12-24 | DNAPL (deoxyribonucleic acid-styrene-acrylonitrile copolymer) polluted underground water in-situ remediation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817333.3A CN105776361B (en) | 2014-12-24 | 2014-12-24 | A kind of underground water in-situ remediation system and its application process by DNAPL pollutions |
| CN201810258558.8A CN108314106B (en) | 2014-12-24 | 2014-12-24 | DNAPL (deoxyribonucleic acid-styrene-acrylonitrile copolymer) polluted underground water in-situ remediation method |
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| CN201410817333.3A Division CN105776361B (en) | 2014-12-24 | 2014-12-24 | A kind of underground water in-situ remediation system and its application process by DNAPL pollutions |
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| CN201410817333.3A Active CN105776361B (en) | 2014-12-24 | 2014-12-24 | A kind of underground water in-situ remediation system and its application process by DNAPL pollutions |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN102583712A (en) * | 2012-02-21 | 2012-07-18 | 清华大学 | Method and system by using micro-nano bubbles to perform reinforcement in-situ remediation on polluted ground water |
| CN202379856U (en) * | 2011-12-29 | 2012-08-15 | 北京市环境保护科学研究院 | Air injection system for remedying volatile organic pollutants in underground water in situ |
| CN202466645U (en) * | 2012-01-17 | 2012-10-03 | 常州市环境科学研究院 | Extraction-recharge well applied to restoration work of polluted underground water on site |
| CN102936062A (en) * | 2012-10-30 | 2013-02-20 | 苏州唯盛环境修复科技有限公司 | Underground water pollution in-situ restoration method based on synchronous shattering hydrodynamic circulation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0696143B2 (en) * | 1991-05-27 | 1994-11-30 | 日本地下水開発株式会社 | Method and apparatus for removing groundwater pollutants |
| CN102774965A (en) * | 2012-06-01 | 2012-11-14 | 北京市水利规划设计研究院 | In-situ repair system for treating pollution of underground water |
| CN102923822B (en) * | 2012-11-08 | 2014-05-14 | 中国环境科学研究院 | Restoring device and restoring method for treating fluorine pollution of groundwater |
-
2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN202379856U (en) * | 2011-12-29 | 2012-08-15 | 北京市环境保护科学研究院 | Air injection system for remedying volatile organic pollutants in underground water in situ |
| CN202466645U (en) * | 2012-01-17 | 2012-10-03 | 常州市环境科学研究院 | Extraction-recharge well applied to restoration work of polluted underground water on site |
| CN102583712A (en) * | 2012-02-21 | 2012-07-18 | 清华大学 | Method and system by using micro-nano bubbles to perform reinforcement in-situ remediation on polluted ground water |
| CN102936062A (en) * | 2012-10-30 | 2013-02-20 | 苏州唯盛环境修复科技有限公司 | Underground water pollution in-situ restoration method based on synchronous shattering hydrodynamic circulation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102565A (en) * | 2019-05-31 | 2019-08-09 | 天津大学 | The extraction well system with anti-blockage function applied to the extracting of soil multiphase |
| CN110759519A (en) * | 2019-10-10 | 2020-02-07 | 上海环境绿色生态修复科技有限公司 | Groundwater soil combined remediation device for gas station pollution area |
| CN112028406A (en) * | 2020-09-08 | 2020-12-04 | 中煤科工集团西安研究院有限公司 | Underground water in-situ remediation device and method based on directional drilling |
| CN112028406B (en) * | 2020-09-08 | 2022-11-25 | 中煤科工集团西安研究院有限公司 | Underground water in-situ remediation device and method based on directional drilling |
| CN114524533A (en) * | 2022-03-02 | 2022-05-24 | 山东省水利科学研究院 | Underground water in-situ remediation device and method for increasing seepage path |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105776361A (en) | 2016-07-20 |
| CN105776361B (en) | 2018-06-08 |
| CN108314106B (en) | 2020-12-29 |
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