CN102587451A - Selective permeable reactive barrier technique for controlling seawater invasion - Google Patents

Selective permeable reactive barrier technique for controlling seawater invasion Download PDF

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Publication number
CN102587451A
CN102587451A CN2012100641317A CN201210064131A CN102587451A CN 102587451 A CN102587451 A CN 102587451A CN 2012100641317 A CN2012100641317 A CN 2012100641317A CN 201210064131 A CN201210064131 A CN 201210064131A CN 102587451 A CN102587451 A CN 102587451A
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China
Prior art keywords
seawater
selective permeable
permeable reactive
invasion
selectively penetrating
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CN2012100641317A
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CN102587451B (en
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彭昌盛
刘萍
马蕾
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Ocean University of China
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Ocean University of China
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    • 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
    • Y02A20/404—Saltwater intrusion barriers

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Abstract

The invention relates to a selective permeable reactive barrier technique for controlling seawater invasion, which is used for avoiding waste of precious freshwater resources due to union pumping prior to discharge of freshwater and sweater in artificial pumping. The technique includes: pumping wells (3) are built between a land (1) and a sea (2), walls and bottom plates of the pumping wells (3) are made of selective permeable reactive barriers (4), and the selective permeable reactive barriers (4) are composed of porous medium (6) and salt-sensitive material (7). In freshwater, the salt-sensitive material (7) absorbs water to swell to block pores of the porous medium (6), and freshwater (5) cannot permeate the selective permeable reactive barriers (4) to enter the pumping wells (3). In seawater, the salt-sensitive material (7) dehydrates to shrink to allow pores of the porous medium (6) to be open, and seawater (5) can permeate the selective permeable reactive barriers (4) to enter the pumping wells (3). The pumping wells built based on the selective permeable reactive barriers can be used for preventing seawater invasion and treating sweater invasion.

Description

A kind of selectively penetrating reaction wall technology of preventing and treating seawater invasion
Technical field
The present invention relates to a kind of selectively penetrating reaction wall technology of preventing and treating seawater invasion, belong to the resource environment field.
Background technology
Seawater invasion is a global problem, and the seawater invasion situation of China is also very severe.According to up-to-date survey data, China's seawater invasion area has surpassed 10000km 2, the salinization of soil area surpasses 13500km 2, wherein only the seawater invasion area of Shandong Province just surpasses 4000km 2Problems such as the arable land salinization of soil that causes because of seawater invasion, life water source pollution, underground installation corrosion have seriously restricted the economy and the social development of coastal area.
The control to seawater invasion at present mainly contains: the exploiting groundwater of limiting the quantity of, artificial recharge, artificial pumping, build underground cut-off wall.The exploiting groundwater of limiting the quantity of means the minimizing of output, and this will further strengthen the imbalance between supply and demand of coastal area fresh water.Artificial recharge needs the face of land freshwater resources of labor, and a part of fresh water is the person who lives in exile ocean in vain, and needs to build a large amount of diversion works, and is also higher to the water quality requirement of recharge water.Between littoral zone degree of saltiness water, build underground cut-off wall; Can stop seawater invasion to a certain extent and retain fresh groundwater; But the cost of underground cut-off wall is high; And hindered phreatic earial drainage, and maybe the ecology of coastal area be impacted, also possibly cause the surface soil salination in the wet season because groundwater table raises.The artificial pumping utilizes to draw water and forms the water level low ebb, and the water of extraction is the amalgam of seawater and freshwater, generally can not be used for supplying water, and has wasted a large amount of freshwater resources.
Summary of the invention
To extract fresh water out the back discharging with seawater in order overcoming in artificial pumping's process, to avoid causing the waste of valuable freshwater resources.The objective of the invention is to set up a kind of reaction wall with selectively penetrating function; Meet the quick property of the salt material that fresh water expands, salt water shrinks through in body of wall, filling; Realization is to the selectively penetrating of seawater and fresh water: at briny environment; Syneresis behind the quick property of the salt material chance seawater in the body of wall causes the body of wall permeability rate to raise, and seawater can penetrate body of wall smoothly; In fresh water environment, imbibition behind the quick property of the salt material chance fresh water in the body of wall causes the body of wall permeability rate to reduce, and fresh water not porous passes through body of wall.With this selectively penetrating reaction wall is the pumped well that the basis is set up, and can be implemented in an extracting seawater in the pump process and keeps the purpose of fresh water.
The invention has the advantages that: with this selectively penetrating reaction wall is the pumped well that the basis is set up, and can prevent seawater invasion, also can administer seawater invasion.To the area of seawater invasion does not take place as yet, through extracting seawater optionally, the part has reduced the water level of underground sea water, has raised the water level of fresh groundwater relatively, thereby has stoped the invasion of seawater; To the area of seawater invasion takes place, through extracting seawater optionally, can constantly reduce the seawater volume in marine invasion district, progressively dwindle the marine invasion area.
Description of drawings
Fig. 1 is a pumped well structural representation of the present invention.
Fig. 2 is the partial structurtes figure of selectively penetrating reaction wall of the present invention in degree of saltiness water environment.
1. land among the figure, 2. ocean, 3. pumped well, 4. selectively penetrating reaction wall, 5. fresh water, 6. porous media, 7. salt sensitive materials, 8. seawater.
The specific embodiment
Below in conjunction with Fig. 1 and Fig. 2 the present invention is further specified.
Between land (1) and ocean (2), set up pumped well (3), the borehole wall of pumped well (3) and base plate adopt selectively penetrating reaction wall (4).Selectively penetrating reaction wall (4) is made up of porous media (6) and salt sensitive materials (7).In fresh water environment, the hole of porous media (6) has been stopped up in salt sensitive materials (7) imbibition, and fresh water (5) can not see through selectively penetrating reaction wall (4) and get into pumped well (3); In briny environment, salt sensitive materials (7) syneresis, the porosity communication of porous media (6), seawater (8) can see through selectively penetrating reaction wall (4) and get into pumped well (3).The degree of depth of pumped well among the present invention (3) is according to the hydrogeological conditions decision of locality; The thickness of selectively penetrating reaction wall (4) is according to the degree of depth of pumped well (3) and local hydrogeological conditions decision; Porous media (6) can be selected river sand, extra large sand, cobble, gravel etc. for use according to local condition, and salt sensitive materials (7) is the synthetic of organic high water absorption resin and inorganic mineral.

Claims (2)

1. a selectively penetrating reaction wall technology of preventing and treating seawater invasion is characterized in that the borehole wall of pumped well (3) and base plate adopt selectively penetrating reaction wall (4) through between land (1) and ocean (2), setting up pumped well (3).Selectively penetrating reaction wall (4) is made up of porous media (6) and salt sensitive materials (7).In fresh water environment, the hole of porous media (6) has been stopped up in salt sensitive materials (7) imbibition, and fresh water (5) can not see through selectively penetrating reaction wall (4) and get into pumped well (3); In briny environment, salt sensitive materials (7) syneresis, the porosity communication of porous media (6), seawater (8) can see through selectively penetrating reaction wall (4) and get into pumped well (3).
2. a kind of selectively penetrating reaction wall technology of preventing and treating seawater invasion according to claim 1; It is characterized in that: porous media (6) can be selected river sand, extra large sand, cobble, gravel etc. for use according to local condition, and salt sensitive materials (7) is the synthetic of organic high water absorption resin and inorganic mineral.
CN201210064131.7A 2012-03-13 2012-03-13 A kind of method utilizing selectively penetrating reaction wall technology preventing and treating seawater invasion Expired - Fee Related CN102587451B (en)

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CN201210064131.7A CN102587451B (en) 2012-03-13 2012-03-13 A kind of method utilizing selectively penetrating reaction wall technology preventing and treating seawater invasion

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CN201210064131.7A CN102587451B (en) 2012-03-13 2012-03-13 A kind of method utilizing selectively penetrating reaction wall technology preventing and treating seawater invasion

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CN102587451B CN102587451B (en) 2016-11-23

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103455667A (en) * 2013-08-20 2013-12-18 天津大学 Numerical simulation method for controlling confined aquifer seawater invasion through inflation process
CN103523889A (en) * 2013-10-09 2014-01-22 天津科技大学 PRB joint control-based hydraulic power capturing method for removing contaminants in underground water
CN104783340A (en) * 2015-04-28 2015-07-22 苏州舒而适纺织新材料科技有限公司 Heat-protective clothing moisture absorption air guide structure
CN106939656A (en) * 2017-03-28 2017-07-11 扬州大学 A kind of environmental transparent masonry wall construction and its construction method
CN108996616A (en) * 2018-09-26 2018-12-14 水利部交通运输部国家能源局南京水利科学研究院 A method of invasion seawater prevents and treats system and its protection and utilizes seawater
CN114837132A (en) * 2022-06-10 2022-08-02 河海大学 Shallow seawater intrusion prevention and control method based on anti-seepage geomembrane

Citations (8)

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Publication number Priority date Publication date Assignee Title
EP0071961A2 (en) * 1981-08-06 1983-02-16 Kojicic, Djurdjina Double walled screen-filter with perforated joints
US4619772A (en) * 1982-05-23 1986-10-28 Black James K Method and material for increasing viscosity and controlling of oil well drilling and work-over fluids
GB2246413A (en) * 1990-07-24 1992-01-29 Terence Jeffrey Corbishley Impact protection system
WO2001066275A2 (en) * 2000-03-06 2001-09-13 Aquablok, Ltd. Composite particles and methods of their use
JP2005034489A (en) * 2003-07-17 2005-02-10 Akiyama Kogyo:Kk Pillow
CN1718946A (en) * 2005-06-09 2006-01-11 大连久鼎特种建筑工程有限公司 Underground submerged interception for preventing sea water from invasion and water collection method
JP2008014004A (en) * 2006-07-05 2008-01-24 Ohbayashi Corp Construction method for joint part of impervious material and joint structure
CN102199925A (en) * 2010-03-24 2011-09-28 现代工业株式会社 Particle antiseepage material for seawater

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071961A2 (en) * 1981-08-06 1983-02-16 Kojicic, Djurdjina Double walled screen-filter with perforated joints
US4619772A (en) * 1982-05-23 1986-10-28 Black James K Method and material for increasing viscosity and controlling of oil well drilling and work-over fluids
GB2246413A (en) * 1990-07-24 1992-01-29 Terence Jeffrey Corbishley Impact protection system
WO2001066275A2 (en) * 2000-03-06 2001-09-13 Aquablok, Ltd. Composite particles and methods of their use
WO2001066275A3 (en) * 2000-03-06 2002-02-14 Aquablok Ltd Composite particles and methods of their use
JP2005034489A (en) * 2003-07-17 2005-02-10 Akiyama Kogyo:Kk Pillow
CN1718946A (en) * 2005-06-09 2006-01-11 大连久鼎特种建筑工程有限公司 Underground submerged interception for preventing sea water from invasion and water collection method
JP2008014004A (en) * 2006-07-05 2008-01-24 Ohbayashi Corp Construction method for joint part of impervious material and joint structure
CN102199925A (en) * 2010-03-24 2011-09-28 现代工业株式会社 Particle antiseepage material for seawater

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103455667A (en) * 2013-08-20 2013-12-18 天津大学 Numerical simulation method for controlling confined aquifer seawater invasion through inflation process
CN103455667B (en) * 2013-08-20 2016-06-15 天津大学 Aeration administers the method for numerical simulation of artesian aquifer seawater invasion
CN103523889A (en) * 2013-10-09 2014-01-22 天津科技大学 PRB joint control-based hydraulic power capturing method for removing contaminants in underground water
CN103523889B (en) * 2013-10-09 2015-04-08 天津科技大学 PRB joint control-based hydraulic power capturing method for removing contaminants in underground water
CN104783340A (en) * 2015-04-28 2015-07-22 苏州舒而适纺织新材料科技有限公司 Heat-protective clothing moisture absorption air guide structure
CN104783340B (en) * 2015-04-28 2017-04-05 苏州舒而适纺织新材料科技有限公司 A kind of heat-protective clothing moisture absorption gas-guiding structure
CN106939656A (en) * 2017-03-28 2017-07-11 扬州大学 A kind of environmental transparent masonry wall construction and its construction method
CN108996616A (en) * 2018-09-26 2018-12-14 水利部交通运输部国家能源局南京水利科学研究院 A method of invasion seawater prevents and treats system and its protection and utilizes seawater
CN114837132A (en) * 2022-06-10 2022-08-02 河海大学 Shallow seawater intrusion prevention and control method based on anti-seepage geomembrane

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