CN103882912A - Home-position arsenic removal single well based on siderite filter materials - Google Patents
Home-position arsenic removal single well based on siderite filter materials Download PDFInfo
- Publication number
- CN103882912A CN103882912A CN201410123154.XA CN201410123154A CN103882912A CN 103882912 A CN103882912 A CN 103882912A CN 201410123154 A CN201410123154 A CN 201410123154A CN 103882912 A CN103882912 A CN 103882912A
- Authority
- CN
- China
- Prior art keywords
- gauze
- well
- wellhole
- siderite
- permeable sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- Y02A20/152—Water filtration
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a home-position arsenic removal single well based on siderite filter materials. The home-position arsenic removal single well at least comprises a ground pump room and a wellhole, wherein a well tube, a gauze permeable sleeve and a sediment tube are sequentially arranged in the wellhole from top to bottom, the well tube is fixed on the upper portion of the wellhole, the gauze permeable sleeve is fixed on the lower portion of the wellhole and located in the aquifer of the stratum, the sediment tube is connected to the lower portion of the gauze permeable sleeve, and the well tube is tightly connected with the gauze permeable sleeve through threads; space between the outer wall of the well tube and the well wall sequentially is filled with a concrete well fixing layer and a red soil protecting layer from top to bottom, the concrete well fixing layer is used for protecting and fixing the well tube, and space between the outer wall of the gauze permeable sleeve and the well wall is filled with a filter material layer; the bottom of the wellhole is further provided with a double-ring locator. The home-position arsenic removal single well is good in arsenic removing effect, simple in structure, capable of achieving the natural inferior underground water processing technique of underground normal-position arsenic removal, and capable of making a contribution towards resolving the problems of drinking water safety and body health of people in high-arsenic underground water areas in China, and the filter materials are cheap and easy to obtain.
Description
Technical field
The invention provides a kind of in-situ arsenic removing individual well, relate in particular to a kind of in-situ arsenic removing individual well based on siderite filtrate, belong to natural high-arsenic underground water water treatment technical field inferior.
Background technology
Arsenic is the poisonous element that nature extensively exists, and can cause serious harm to health.Arsenic content in underground water is high-arsenic underground water during higher than 10 μ g/L.High-arsenic underground water have have a very wide distribution, total amount is large, water arsenic source and flyway are difficult to the features such as identification.Long-term drinking high-arsenic underground water can cause the arsenicalisms such as human body skin pigment anomaly, cutaneum carcinoma, visceral cancer, thereby causes endemic arsenic poisoning.
But in the vast water-deficient area of northern China, underground water is main living water use and industrial water use water source.In high-arsenic underground water distributed area, local resident has to using high-arsenic underground water as drinking water source.In the world, in succession find high-arsenic underground water in countries and regions, more than 70, the whole world, threatening the water supply security of approximately 1.5 hundred million populations, cause tens of millions of people to suffer from drinking water type arsenic poisoning.Drink high-arsenic underground water and be considered to group poisoning the most serious in human history.
China is high-arsenic underground water distribution Typical Areas, and high-arsenic underground water is mainly distributed in the areas such as Chinese Datong Basin and Hetao Plain.Show according to Drinking Water in China water quality in 2006 and water-based morbidity survey data, in drinking water, arsenic content exceedes the population of exposure 3,340,000 of 0.05mg/L, and is greater than 0.100mg/L population of exposure up to 2,290,000 people, and these high arsenic water overwhelming majority are underground water.High-arsenic underground water has become the great water supply security problem in China rural area, has caused national great attention.
High-arsenic underground water water treatment is solve the safe drinking water problem in high-arsenic underground water distributed area basic and crucial.For how removing this problem of arsenic from underwater component, experts and scholars have carried out pilot study in large quantities both at home and abroad, propose the arsenic removal technologies such as PRB technology (permeability response wall), coagulating sedimentation technology and adsorption technology, and obtained applying in certain areas.
But, above-mentioned technical method exists needs dig on a wide area to lay arsenic removing equipment, easily cause the problem such as secondary pollution, cost high technology complexity, the market demand that can not well cater to China rural area and need badly the arsenic removal technology of a kind of low cost, highly effective and safe, has affected the popularization of arsenic removal technology.And if can adopt a kind of cheap and easy to getly, the arsenic removal filtrate of effect stability, and make full use of beverage well and realize underground water in-situ arsenic removing, will significantly improve effect of removing arsenic, reduces arsenic removal cost, avoids the drawback of existing arsenic removal technology.
Summary of the invention
The invention solves the deficiency in background technology, a kind of underground water in-situ arsenic removing individual well based on siderite filtrate is provided, this arsenic removal individual well effect of removing arsenic is good, simple for process, filtrate is cheap and easy to get, simple in structure, can realize the groundwater treatment technology natural inferior of underground water in-situ arsenic removing, can be that the safe drinking water of China's high-arsenic underground water area, especially rural area and the solution of people's health problem contribute.
Realizing the technical scheme that above-mentioned purpose of the present invention adopts is:
A kind of in-situ arsenic removing individual well based on siderite filtrate, at least comprise pump house and wellhole on the ground, in described wellhole, be provided with successively well casing, the permeable sleeve pipe of gauze and sediment tube from top to bottom, wherein pump house is positioned on the ground at wellhole place on the ground, well casing is fixed on the top of wellhole, the permeable sleeve pipe of gauze is fixed on the bottom of wellhole and is arranged in the aquifer place on stratum, and sediment tube is connected in the bottom of the permeable sleeve pipe of gauze, and well casing is closely connected by screw thread with the permeable sleeve pipe of gauze; Between the outer wall of well casing and the borehole wall, be filled with successively concrete well cementation layer and laterite topping for the protection of fixing well casing from top to bottom, between the outer wall of the permeable sleeve pipe of gauze and the borehole wall, be filled with filter material layer, in described filter material layer, filtrate is mixed by siderite and river sand; The bottom of wellhole is also provided with dicyclo locator, described dicyclo locator is made up of interior ring, outer shroud and connecting rod, diameter and the sediment tube of described interior ring match, inner ring sleeve is fixedly connected with on sediment tube and with sediment tube, outer shroud and interior ring are concentric circles, and between inner and outer ring, be fixedly connected with by connecting rod, the diameter of outer shroud and the diameter of wellhole match.
In described filter material layer, filtrate is mixed according to the mass ratio of 1:1 by siderite and river sand, and the thickness up and down of filter material layer exceeds the permeable sleeve pipe 40cm of gauze, wherein respectively exceeds up and down 20cm.
Between described filter material layer and laterite topping, be provided with the swell soil sealing layer for cutting off hydraulic connection.
Between the outer wall of described sediment tube and the borehole wall, be filled with river sand as gravel filtering layer.
In pump house, be provided with water fetching device on the ground, water fetching device is self priming pump or submersible pump.
Described interior ring, outer shroud and connecting rod are stainless steel, and three is fixedly connected by welding and is integrated.
On the tube wall of the described permeable sleeve pipe of gauze, be evenly distributed with the circular hole that aperture is 1～2cm, its outside wrapping has three layer of 80 order gauze.
Compared with prior art, the present invention has the following advantages: 1, the present invention selects sand mixed filtrate in siderite-river as arsenic removal filtrate, under the prerequisite of position, clear and definite aquifer, hydrogeological basic parameter, water chemistry parameter, becoming the well stage after the siderite of pre-treatment and river sand mix, to fill as beverage well filtration beds, utilize siderite to adsorb the arsenic in underground water fixing, realize underground water in-situ arsenic removing; Select siderite and river sand as arsenic removal filtrate, effect of removing arsenic is good, and the secondary pollution problem that can avoid chemical method to produce, and effect stability is safe and practical, and meanwhile, the filtrates such as siderite and river sand are cheap and easy to get, with low cost, have good economy.2, in the application, carrying out on the basis of a large amount of indoor static adsorption tests and dynamic leaching experiment, there is dicyclo locator at sediment tube overcoat, in order to keep well casing to be positioned at all the time the central authorities of well, thereby guarantee the accuracy that filtrate is filled, simultaneously, sediment tube can also be used for precipitating into the mud forming in well process, and control chimney filter stops up.3, in the application, the thickness up and down of filter material layer respectively exceeds the permeable sleeve pipe 20cm of gauze, thereby to prevent that in filtrate filling process, filtrate makes the position of filter material layer and the permeable sleeve pipe of gauze produce dislocation because sedimentation, compacting cause error, affects effect of removing arsenic.
In sum, the designed technical scheme of the present invention takes full advantage of the common beverage well in rural area, its well drilling technology is simple, after avoiding technique training and becoming well, safeguard, avoid earth's surface dig on a wide area to lay arsenic removing equipment, can be widely used in China's high-arsenic underground water distributed area, the solution of China's drinking water of rural area health problem is had to comparatively significant meaning, be convenient to promote.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the in-situ arsenic removing individual well based on siderite filtrate provided by the invention;
Fig. 2 is the structural representation of dicyclo locator;
In figure: 1-is pump house on the ground, 2-concrete well cementation layer, 3-laterite topping, 4-PVC well casing, 5-swell soil sealing layer, the permeable sleeve pipe of 6-gauze, 7-filter material layer, 8-dicyclo locator, 9-sediment tube, 10-gravel filtering layer, ring in 11-, 12-connecting rod, 13-outer shroud.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is done to detailed specific description, but protection scope of the present invention is not limited to following examples.
In the present embodiment with Shuozhou City Shanyin County village of Shanxi Province of China for experimental field, carried out field trial.The overall structure schematic diagram of obtained individual well as shown in Figure 1, in wellhole, be provided with successively PVC well casing 4, the permeable sleeve pipe 6 of gauze and sediment tube 9 from top to bottom, PVC well casing 4 is fixed on the top of wellhole, the permeable sleeve pipe 6 of gauze is fixed on the bottom of wellhole and is arranged in the aquifer place on stratum, sediment tube 9 is connected in the bottom of the permeable sleeve pipe 6 of gauze, and PVC well casing 4 is closely connected by screw thread with the permeable sleeve pipe 6 of gauze.Wherein pump house 1 is positioned on the ground at wellhole place on the ground, is provided with water fetching device on the ground in pump house 1, and water fetching device is self priming pump or submersible pump.
Between the outer wall of PVC well casing 4 and the borehole wall, be filled with successively concrete well cementation layer 2 and laterite topping 3 for the protection of fixing well casing from top to bottom.
On the tube wall of the permeable sleeve pipe 6 of described gauze, be evenly distributed with the circular hole that aperture is 1～2cm, its outside wrapping has three layer of 80 order gauze, between the outer wall of the permeable sleeve pipe 6 of gauze and the borehole wall, be filled with filter material layer 7, in described filter material layer 7, filtrate is mixed according to the mass ratio of 1:1 by siderite and river sand; And the thickness up and down of filter material layer 7 exceeds the 40cm of height up and down of the permeable sleeve pipe 6 of gauze, wherein respectively exceeds up and down 20cm.Between filter material layer 7 and laterite topping 3, be provided with the swell soil sealing layer 5 for cutting off hydraulic connection.Between the outer wall of sediment tube 9 and the borehole wall, be filled with river sand as gravel filtering layer 10.
The bottom of wellhole is also provided with dicyclo locator 8, its structure as shown in Figure 2, dicyclo locator 8 is made up of interior ring 11, outer shroud 13 and connecting rod 12, diameter and the sediment tube 9 of described interior ring 11 match, interior ring 11 is enclosed within on sediment tube 9 and with sediment tube 9 and is fixedly connected with, outer shroud 13 is concentric circles with interior ring 11, and is fixedly connected with by connecting rod 12 between inner and outer ring, and the diameter of outer shroud and the diameter of wellhole match.Described interior ring, outer shroud and connecting rod are stainless steel, and three is fixedly connected by welding and is integrated.
The Specific construction technique of the individual well described in the present embodiment is as follows:
1, wellhole pore-forming.Utilize impact drill to carry out wellhole pore-forming, field trial becomes wellhole specification to be: hole diameter Φ 60cm, utilizes lining rope to record well depth 25.58m.
2, the real pipe of assembling.Assemble at the scene pvc pipe, single pvc pipe specification is long is 8m, and caliber Φ 7.5cm, needs flexible modulation according to well depth when connection.When connection, first joint is polished with sand paper, then connect with equal diameter joint, guarantee to be connected firmly between pipe.After pvc pipe connects, total length is 23.38m.
3, make permeable sleeve pipe.Get the long pvc pipe of 1.2m as permeable sleeve pipe, at even tube wall punching, aperture 1-2cm.Then with 80 order gauzes wrappings three circles, tighten gauze with nylon cable tie and iron wire.Between the real pipe of permeable sleeve pipe and PVC, be closely connected with screw thread.
4, make sediment tube and dicyclo locator.Get 1mPVC pipe as sediment tube, in order to precipitate the mud producing in later stage use procedure.For ensuring that well casing is positioned at wellhole central authorities all the time, guarantee that filler is accurate and top well casing is stressed evenly, therefore design and produce dicyclo locator.Interior ring Φ 7.5cm consistent with sediment tube hole diameter external diameter, outer shroud and roughly consistent Φ 60cm of wellhole internal diameter, roll and be welded by stainless steel iron sheet.Interior ring and outer shroud are by reinforcing bar firm welding guaranteed strength.After completing, closely cover is connected to sediment tube.
5, well casing is gone into the well.Assembling sediment tube and permeable sleeve pipe, along aperture, slowly transfer wire rope sediment tube and permeable sleeve pipe steadily gone into the well under use steel wire penetrating dicyclo locator, and connect pvc pipe successively (between pvc pipe, utilizing equal diameter joint to connect), until sediment tube arrives shaft bottom.
6, individual well Cheng Jing.Well casing carries out well filling after transferring.First between sediment tube and the borehole wall space-filling river sand as the beds of precipitation, thickness 90cm, its thickness is recorded by lining rope.Then fill siderite-river sand mixing filtrate, filter material layer thickness 1.6m, insert altogether filtrate 380.8kg, guarantee that filter material layer exceeds filter pipe each 20cm up and down, with avoid in well filling process because of the reason such as sedimentation, densification cause filter material layer can not with the problem of filter pipe position consistency.Then fill swell soil 20cm, the isolated hydraulic connection in while utilizing the characteristic of its imbibition to guarantee to fetch water in target aquifer and other aquifers.Again fill laterite and form topping, protection PVC well casing.While being filled to apart from well head 50cm, concreting is cemented the well, protection well head.
7, well-flushing.Because well casing bore is less, Cheng Jinghou utilizes air compressor to carry out well-flushing, washes out mud in individual well, until water outlet is limpid.
8, effect of removing arsenic monitoring.Well-flushing is monitored after completing, to determine arsenic removal individual well effect.Take two kinds of modes to monitor: short time continuous sampling and the sampling of long-time interval.After well-flushing finishes, utilize self priming pump to carry out short time continuous sampling, every 20min samples once.After sampling, carry out form fractionation, preservation, the test of arsenic according to corresponding standard, result shows that arsenic removal efficiency can reach 50% left and right substantially.Then carry out the sampling of long-time interval, sample frequency is for once a day, and result shows that total arsenic concentration is at 0 μ g/L～30 μ g/L.
Above embodiment is only for this patent is described, and not for the present invention is set to use specification.One of ordinary skilled in the art, in the situation that not departing from core concept of the present invention and general technical scope, can also make a variety of changes and modification, and above all technical schemes that are equal to also belong to category of the present invention.
Claims (7)
1. the in-situ arsenic removing individual well based on siderite filtrate, at least comprise pump house and wellhole on the ground, it is characterized in that: in described wellhole, be provided with successively well casing, the permeable sleeve pipe of gauze and sediment tube from top to bottom, wherein pump house is positioned on the ground at wellhole place on the ground, well casing is fixed on the top of wellhole, the permeable sleeve pipe of gauze is fixed on the bottom of wellhole and is arranged in the aquifer place on stratum, and sediment tube is connected in the bottom of the permeable sleeve pipe of gauze, and well casing is closely connected by screw thread with the permeable sleeve pipe of gauze; Between the outer wall of well casing and the borehole wall, be filled with successively concrete well cementation layer and laterite topping for the protection of fixing well casing from top to bottom, between the outer wall of the permeable sleeve pipe of gauze and the borehole wall, be filled with filter material layer, in described filter material layer, filtrate is mixed by siderite and river sand; The bottom of wellhole is also provided with dicyclo locator, described dicyclo locator is made up of interior ring, outer shroud and connecting rod, diameter and the sediment tube of described interior ring match, inner ring sleeve is fixedly connected with on sediment tube and with sediment tube, outer shroud and interior ring are concentric circles, and between inner and outer ring, be fixedly connected with by connecting rod, the diameter of outer shroud and the diameter of wellhole match.
2. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, it is characterized in that: in described filter material layer, filtrate is mixed according to the mass ratio of 1:1 by siderite and river sand, and the thickness up and down of filter material layer exceeds the permeable sleeve pipe 40cm of gauze, wherein respectively exceed up and down 20cm.
3. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, is characterized in that: between described filter material layer and laterite topping, be provided with the swell soil sealing layer for cutting off hydraulic connection.
4. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, is characterized in that: between the outer wall of described sediment tube and the borehole wall, be filled with river sand as gravel filtering layer.
5. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, is characterized in that: in pump house, be provided with water fetching device on the ground, water fetching device is self priming pump or submersible pump.
6. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, is characterized in that: described interior ring, outer shroud and connecting rod are stainless steel, and three is fixedly connected by welding and is integrated.
7. the in-situ arsenic removing individual well based on siderite filtrate according to claim 1, is characterized in that: on the tube wall of the described permeable sleeve pipe of gauze, be evenly distributed with the circular hole that aperture is 1～2cm, its outside wrapping has three layer of 80 order gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123154.XA CN103882912B (en) | 2014-03-28 | 2014-03-28 | Home-position arsenic removal single well based on siderite filter materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123154.XA CN103882912B (en) | 2014-03-28 | 2014-03-28 | Home-position arsenic removal single well based on siderite filter materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103882912A true CN103882912A (en) | 2014-06-25 |
| CN103882912B CN103882912B (en) | 2015-03-18 |
Family
ID=50952013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123154.XA Expired - Fee Related CN103882912B (en) | 2014-03-28 | 2014-03-28 | Home-position arsenic removal single well based on siderite filter materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103882912B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445283A (en) * | 2017-08-31 | 2017-12-08 | 中国地质大学（武汉） | The method for the underground water in-situ arsenic removing that the solid arsenic of a kind of individual well arsenic removal and water-bearing layer combines |
| CN108383271A (en) * | 2018-02-26 | 2018-08-10 | 中国地质大学（武汉） | A kind of distributing underground water arsenic removing apparatus and its manufacturing method based on composite filtering material |
| CN110075605A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of system and method for polluted underground water multilayer extraction |
| CN113565172A (en) * | 2021-08-02 | 2021-10-29 | 中国矿业大学 | Construction method of pumping and water injecting well of underground reservoir of strip mine waste dump |
| CN113846617A (en) * | 2021-10-28 | 2021-12-28 | 北京冽泉环保科技有限公司 | Well pipe centering construction method of underground water monitoring well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4400271A (en) * | 1981-08-11 | 1983-08-23 | Lunceford Randy L | Captive air system for water well |
| CN101274264A (en) * | 2007-03-28 | 2008-10-01 | 郭华明 | Preparation of composite adsorbing agent for effectively removing arsenic and method for using the same |
| CN102233256A (en) * | 2010-04-30 | 2011-11-09 | 中国地质大学（北京） | Preparation method of arsenic removal adsorbent and arsenic removal adsorbent |
| CN202644480U (en) * | 2012-06-21 | 2013-01-02 | 广东省水利水电科学研究院 | Pressure relief vent well for repairing hydraulic structure inverted filter |
-
2014
- 2014-03-28 CN CN201410123154.XA patent/CN103882912B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4400271A (en) * | 1981-08-11 | 1983-08-23 | Lunceford Randy L | Captive air system for water well |
| CN101274264A (en) * | 2007-03-28 | 2008-10-01 | 郭华明 | Preparation of composite adsorbing agent for effectively removing arsenic and method for using the same |
| CN102233256A (en) * | 2010-04-30 | 2011-11-09 | 中国地质大学（北京） | Preparation method of arsenic removal adsorbent and arsenic removal adsorbent |
| CN202644480U (en) * | 2012-06-21 | 2013-01-02 | 广东省水利水电科学研究院 | Pressure relief vent well for repairing hydraulic structure inverted filter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445283A (en) * | 2017-08-31 | 2017-12-08 | 中国地质大学（武汉） | The method for the underground water in-situ arsenic removing that the solid arsenic of a kind of individual well arsenic removal and water-bearing layer combines |
| CN108383271A (en) * | 2018-02-26 | 2018-08-10 | 中国地质大学（武汉） | A kind of distributing underground water arsenic removing apparatus and its manufacturing method based on composite filtering material |
| CN110075605A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of system and method for polluted underground water multilayer extraction |
| CN113565172A (en) * | 2021-08-02 | 2021-10-29 | 中国矿业大学 | Construction method of pumping and water injecting well of underground reservoir of strip mine waste dump |
| CN113846617A (en) * | 2021-10-28 | 2021-12-28 | 北京冽泉环保科技有限公司 | Well pipe centering construction method of underground water monitoring well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103882912B (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103882912B (en) | Home-position arsenic removal single well based on siderite filter materials | |
| McGrail et al. | Injection and monitoring at the Wallula basalt pilot project | |
| CN105298490B (en) | Underground fluid Stratified Sampling apparatus and method based on U-tube technology | |
| CN103967486B (en) | Gas pushing type underground fluid stratified sampling device | |
| CN103630659A (en) | Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water | |
| CN105527384A (en) | Grouting simulating test device and test method thereof | |
| Hamed et al. | Groundwater inrush caused by the fault reactivation and the climate impact in the mining Gafsa basin (southwestern Tunisia) | |
| CN111562143A (en) | Automatic multi-parameter groundwater environment layering monitoring well suitable for polluted site | |
| CN101476459B (en) | Experimental device and method for simulating real oil well acidation | |
| CN108637003A (en) | A kind of regulation method based on 20 meters or less backfill pollutions of chromium | |
| Fritz et al. | Geochemical and hydraulic investigations of river sediments in a bank filtration system | |
| Edwards et al. | Design and deployment of borehole observatories and experiments during IODP Expedition 336, Mid-Atlantic Ridge flank at North Pond | |
| CN203866897U (en) | Filling-pumping double-function well for treating groundwater pollution | |
| CN103880142B (en) | Method for plating iron and in situ removing arsenic for regional aquifer | |
| CN107445283A (en) | The method for the underground water in-situ arsenic removing that the solid arsenic of a kind of individual well arsenic removal and water-bearing layer combines | |
| Keller | Improved Spatial Resolution in Vertical and Horizontal Holes for Measurement of Bioremediation Parameters and Histories | |
| CN110685659A (en) | Low-permeability medium hydraulic fracturing modification three-dimensional simulation system and use method | |
| CN108005057B (en) | A kind of vacuum preloading elution coupling cleaning ground processing system | |
| Rahman et al. | Exploratory experiments to determine the effect of alternative operations on the efficiency of subsurface arsenic removal in rural Bangladesh | |
| CN106680177B (en) | Scene determines the inner tube drawdown double-tube method of inner tube aquiclude hydrogeological parameter | |
| Walsh et al. | Determination of vertical and horizontal pathways of injected fresh wastewater into a deep saline aquifer (Florida, USA) using natural chemical tracers | |
| CN106680175B (en) | Scene determines the outer tube drawdown double-tube method of inner tube aquiclude hydrogeological parameter | |
| CN111119882A (en) | Psi-type pipe multiphase fidelity sampling method and device suitable for ultra-low permeability stratum | |
| CN105134123B (en) | Engineering swelling agent is layered water-stopping method | |
| Gokgoz et al. | Hydrogeology and environmental study at the Karahayit geothermal field (Western Turkey) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20170328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |