CN104445797A - Novel row tube type funnel-door permeable reactive barrier system - Google Patents
Novel row tube type funnel-door permeable reactive barrier system Download PDFInfo
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- CN104445797A CN104445797A CN201310437387.2A CN201310437387A CN104445797A CN 104445797 A CN104445797 A CN 104445797A CN 201310437387 A CN201310437387 A CN 201310437387A CN 104445797 A CN104445797 A CN 104445797A
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Abstract
The invention provides a novel row tube type funnel-door permeable reactive barrier system. The novel row tube type funnel-door permeable reactive barrier system comprises a plurality of permeable filling tubes, wherein the permeable filling tubes are connected in series or parallel or in both series and parallel with one another. The novel row tube type funnel-door permeable reactive barrier system has the beneficial effects that land collapse caused by weakening of mechanical strength can be prevented in the long-time running process of the traditional permeable reactive barrier. The novel row tube type funnel-door permeable reactive barrier system has the advantages of convenient installation and change and the like, is low in repair cost and is capable of realizing long-time in-situ remediation in polluted groundwater.
Description
Technical field
The invention belongs to groundwater remediation technical field field, especially relate to a kind of Novel tubulation type funnel-Men permeating reaction wall system.
Background technology
In recent decades, China's process of industrialization brings the quality of groundwater of nationwide to worsen, and groundwater pollution has caused the extensive concern of government department and the public for the harm of human social.According to the report of China Geological Survey Bureau, China 90% urban groundwater suffers the pollution of organic and inorganic hazardous and noxious substances in various degree, has presented the expansion trend of spreading over a whole area from one point.China's 118 big and medium-sized cities groundwater monitoring result displays, comparatively heavily contaminated city accounts for 64%, and gentlier pollute city and account for 33%, the safe drinking water of the people receives grave danger.Groundwater pollution control is listed among eight emphasis environmental engineerings by country " 12 " planning.
Groundwater pollution is chemical composition of groundwater, physical properties and biological characteristics change and make the phenomenon of deteriorating water quality.The following complex formation in earth's surface, Groundwater Flow is extremely slow.Therefore, underground water, once be polluted, even if thorough decontamination source, also needs the more than ten years, water quality even just can be made decades to restore.
Typical groundwater remediation technology can be divided into showering technology and based technique for in-situ remediation two kinds.Showering technology, due to the restriction of underground water geologic framework and hydraulics, often pollutent thoroughly can not be removed, and rehabilitation cost is relatively high.Based technique for in-situ remediation saves extraction under the effect of human factor, Polluted Groundwater realized the technology of repairing in original place.Permeable reactive wall technology is a kind of underground water based technique for in-situ remediation developed rapidly in recent years, and permeable reactive wall technology effectively can remove the pollution substance such as heavy metal, inorganic anion, organism in underground water, has a good application prospect.This technology does not generally need additionaling power device, does not need to arrange ground processing facility yet, except needs long term monitoring, needs other working costs hardly.But, in the application process of permeable reactive wall, also there will be some problems.Such as, can occur after permeable reactive wall runs for some time that media adsorbs is saturated, the phenomenon such as inactivation or blocking, at this moment need the reaction medium being embedded in underground to dig out to carry out regenerating or changing, and the underground reaction medium of stacking at random brings very large inconvenience to regeneration or replacing; After permeable reactive wall runs for some time, the character of reaction medium self changes and its physical strength can be made to reduce, and causes surface collapse; In addition, for multiple pollutant and the body of groundwater deposited, usually need the permeable reactive body of wall material of medium compound, very large trouble can be brought to construction process like this.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of Novel tubulation type funnel-Men permeating reaction wall system, is particularly suitable for the area that groundwater pollution composition is more complicated.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Novel tubulation type funnel-Men permeating reaction wall system, described Novel tubulation type funnel-Men permeating reaction wall system comprises multiple infiltration filling tube, and described infiltration filling tube connects with series connection or in parallel or the two mode all had.
Further, described infiltration filling tube comprises steel pipe and infiltration filler, and described infiltration filler is placed in described steel pipe.
Further, described steel pipe length is 0.5m-10m.
Further, described steel tube shell diameter is 0.2m-2m, and thickness is 3mm-5mm.
Further, described infiltration filler is any one or any several combination in the materials such as Iron sulfuret particle, zero-valent iron particle, activated carbon particle, active sludge.
Further, the gap between described infiltration filling tube is with clay filled.
Further, described Novel tubulation type funnel-Men permeating reaction wall system is along contaminated water layer along the placed horizontally of groundwater flow direction.
Owing to adopting technique scheme, avoid the surface collapse that traditional penetration reaction body of wall causes because physical strength declines in During Process of Long-term Operation, infiltration filling tube of the present invention has to be installed and changes the advantages such as convenient, rehabilitation expense is cheap, can realize the long-term in-situ immobilization to Polluted Groundwater.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention
Fig. 2 is the structural representation of an alternative embodiment of the invention
In figure:
1, steel pipe 2, infiltration filler 3, clay
Embodiment
As shown in Figure 1, a kind of Novel tubulation type funnel-Men permeating reaction wall system, at contaminated water layer along the placed horizontally of groundwater flow direction, the gap between infiltration filling tube is with clay filled.The shell of infiltration filling tube is the steel pipe of both ends open.For different pollutent objects, the infiltration filler of filling in steel pipe can comprise one or more in the materials such as Iron sulfuret particle, zero-valent iron particle, activated carbon particle, active sludge.Contaminated underground water is repaired after flowing through infiltration filling tube.Meanwhile, according to the particular case of contaminated water layer, infiltration filling tube mode in parallel or series connection can be adopted to connect, ensures the effect of administering.
Below in conjunction with the working process of this example, the present invention will be further described: underground water is caused the relative narrow regions be made up of reactant.Adopt infiltration filling tube as " door ", contaminated underground water is by being repaired after infiltration filling tube.In the contaminated waterbearing stratum of underground water, filling tube array will be permeated along the placed horizontally of Groundwater Flow direction within the scope of Pollution Plume, by the clay filled of low-permeability between infiltration filling tube, construct funnel-Men permeating reaction wall system with this.When groundwater flow is through system, under the driving of hydraulic power, bulk water phase enters in the high infiltration filling tube of permeability coefficient and flows, and clay serves iris action.The reactive materials of infiltration filling tube inside is repaired the groundwater pollutant flowed through, and the steel pipe of both ends open is selected in infiltration filling tube outside, and steel pipe generally selects shell diameter to be 0.2m-2m, and length is 0.5m-10m, and thickness is 3mm-5mm.This kind of size is selected conveniently to install and later maintenance, can change in time at the position damaged, and need not whole system be repaired, steel pipe effectively can ensure the surface collapse that reaction body of wall can not cause because physical strength declines in During Process of Long-term Operation simultaneously.This diameter and choosing of thickness also can ensure passing through and decontamination effect improving of current simultaneously.
Infiltration filling tube inside filling reactive materials, is repaired the pollutent in underground water by mechanism such as absorption, degraded or chemical reactions.Reactive material can select any one or any several combination in materials such as can selecting Iron sulfuret particle, zero-valent iron particle, activated carbon particle, active sludge.Zero-valent Iron and Iron sulfuret mainly play chemical reduction effect, and active sludge mainly plays microbiological deterioration.Entering infiltration filling tube, the flow velocity of underground water can be accelerated.In order to ensure that underground water has enough residence time to complete reparation, infiltration filling tube can be extended by the mode of series connection.For the body of groundwater containing multiple pollutant, can arrange multiple funnel-Men and repair district, each district is designed to process specific pollutent.
Infiltration filling tube can carry out series connection according to site conditions such as the concentration of pollutent, groundwater velocities and use, and ensures the residence time of underground water in infiltration filling tube.
Application example 1:: Qian Cengshui waterbearing stratum, somewhere thickness is 7.2m, primarily of sand and sandy gravel composition, particle diameter is all less than 0.2mm, is homogeneous aquifer.Groundwater velocity is 1m/day, and trieline concentration is 500mg/L, and tce concentration is 650mg/L.
According to waterbearing stratum, this area thickness and groundwater quality, according to technical scheme provided by the present invention, 6 rows 8 are set and arrange infiltration filling tube; Single infiltration filling tube length is 1m, diameter 0.5m; Infiltration filling tube spacing is 0.5m; Inner filling 20 parts of Iron sulfurets, 40 parts of Zero-valent Iron, 40 parts of activated carbon particles.
After system run all right, good to the removal effect of trieline and zellon, average removal rate reaches 90% and 95% respectively.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (7)
1. a Novel tubulation type funnel-Men permeating reaction wall system, it is characterized in that: described Novel tubulation type funnel-Men permeating reaction wall system comprises multiple infiltration filling tube, described infiltration filling tube connects with series connection or in parallel or the two mode all had.
2. Novel tubulation type funnel-Men permeating reaction wall system according to claim 1, is characterized in that: described infiltration filling tube comprises steel pipe and infiltration filler, and described infiltration filler is placed in described steel pipe.
3. Novel tubulation type funnel-Men permeating reaction wall system according to claim 2, is characterized in that: described steel pipe length is 0.5m-10m.
4. Novel tubulation type funnel-Men permeating reaction wall system according to claim 2, it is characterized in that: described steel tube shell diameter is 0.2m-2m, thickness is 3mm-5mm.
5. Novel tubulation type funnel-Men permeating reaction wall system according to claim 2, is characterized in that: described infiltration filler is any one or any several combination in the materials such as Iron sulfuret particle, zero-valent iron particle, activated carbon particle, active sludge.
6. Novel tubulation type funnel-Men permeating reaction wall system according to claim 1, is characterized in that: the gap between described infiltration filling tube is with clay filled.
7. Novel tubulation type funnel-Men permeating reaction wall system according to claim 1, is characterized in that: described Novel tubulation type funnel-Men permeating reaction wall system is along contaminated water layer along the placed horizontally of groundwater flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310437387.2A CN104445797A (en) | 2013-09-23 | 2013-09-23 | Novel row tube type funnel-door permeable reactive barrier system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310437387.2A CN104445797A (en) | 2013-09-23 | 2013-09-23 | Novel row tube type funnel-door permeable reactive barrier system |
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| CN104445797A true CN104445797A (en) | 2015-03-25 |
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| CN201310437387.2A Pending CN104445797A (en) | 2013-09-23 | 2013-09-23 | Novel row tube type funnel-door permeable reactive barrier system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364953A (en) * | 2017-08-16 | 2017-11-21 | 北京金泽环境能源技术研究股份有限公司 | A kind of duct type sewage disposal system |
| CN108104109A (en) * | 2017-11-27 | 2018-06-01 | 东南大学 | For the permeable concrete pipe piles PRB systems and construction method of groundwater remediation |
| CN108328747A (en) * | 2018-02-07 | 2018-07-27 | 河海大学 | A kind of infiltration wall for underground water pollution reparation |
| CN109516609A (en) * | 2018-10-29 | 2019-03-26 | 山东省水利科学研究院 | Groundwater azotate tandem extracts coupled processing system and its method of construction out in situ |
-
2013
- 2013-09-23 CN CN201310437387.2A patent/CN104445797A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364953A (en) * | 2017-08-16 | 2017-11-21 | 北京金泽环境能源技术研究股份有限公司 | A kind of duct type sewage disposal system |
| CN107364953B (en) * | 2017-08-16 | 2018-05-22 | 北京金泽环境能源技术研究股份有限公司 | A kind of duct type sewage disposal system |
| CN108104109A (en) * | 2017-11-27 | 2018-06-01 | 东南大学 | For the permeable concrete pipe piles PRB systems and construction method of groundwater remediation |
| CN108328747A (en) * | 2018-02-07 | 2018-07-27 | 河海大学 | A kind of infiltration wall for underground water pollution reparation |
| CN108328747B (en) * | 2018-02-07 | 2020-04-21 | 河海大学 | Permeable wall for groundwater pollution remediation |
| CN109516609A (en) * | 2018-10-29 | 2019-03-26 | 山东省水利科学研究院 | Groundwater azotate tandem extracts coupled processing system and its method of construction out in situ |
| CN109516609B (en) * | 2018-10-29 | 2023-11-24 | 山东省水利科学研究院 | Underground water nitrate serial in-situ extraction coupling treatment system and construction method thereof |
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Application publication date: 20150325 |
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