JP4739702B2 - 汚染地盤の浄化方法 - Google Patents
汚染地盤の浄化方法 Download PDFInfo
- Publication number
- JP4739702B2 JP4739702B2 JP2004206998A JP2004206998A JP4739702B2 JP 4739702 B2 JP4739702 B2 JP 4739702B2 JP 2004206998 A JP2004206998 A JP 2004206998A JP 2004206998 A JP2004206998 A JP 2004206998A JP 4739702 B2 JP4739702 B2 JP 4739702B2
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- Prior art keywords
- water
- ground
- layer
- permeable layer
- groundwater
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- 238000000034 method Methods 0.000 title claims description 41
- 238000000746 purification Methods 0.000 title claims description 21
- 239000010410 layer Substances 0.000 claims description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 78
- 239000003673 groundwater Substances 0.000 claims description 49
- 238000005086 pumping Methods 0.000 claims description 34
- 230000035699 permeability Effects 0.000 claims description 25
- 239000003344 environmental pollutant Substances 0.000 claims description 24
- 231100000719 pollutant Toxicity 0.000 claims description 24
- 239000002344 surface layer Substances 0.000 claims description 12
- 239000000356 contaminant Substances 0.000 claims description 10
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- 229920006395 saturated elastomer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
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- 150000004045 organic chlorine compounds Chemical class 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 30
- 239000002245 particle Substances 0.000 description 16
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000011109 contamination Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 238000005370 electroosmosis Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
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- 230000010287 polarization Effects 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
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- -1 trichlorethylene Chemical class 0.000 description 1
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Images
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- Processing Of Solid Wastes (AREA)
Description
1a,6a ケーシング
2 注水井戸
3 止水壁
4 揚水管
5 電極
6 ガス吸引孔
8 被覆材
10 地盤
11 表層
12 透水層
13 不透水層
14,14a 汚染領域
14b 残留汚染領域
AC 交流電源
G 汚染物質のガス
GW 地下水
GWL 地下水位
P 水中ポンプ
VP 真空ポンプ
W 水
Claims (4)
- 相対的に透水性の高い透水層及び相対的に透水性の低い不透水層からなる地盤において、透水層内の地下水を汲み上げることによってこの透水層を地下水の不飽和状態とし、その土粒子間隙に絶縁体である気体相を形成することによって電気を流れにくくした後、地下水で飽和している前記不透水層の内部へ達するように前記地盤に挿入した電極間に電圧を印加することにより、前記不透水層へ効率良く電流を流して前記不透水層における汚染領域を発熱させ、この汚染領域から気化して前記透水層内へ導入された汚染物質を真空吸引により回収することを特徴とする汚染地盤の浄化方法。
- 汚染物質が、有機塩素系化合物や有機溶剤等の揮発性物質であることを特徴とする請求項1に記載の汚染地盤の浄化方法。
- 印加する電圧が交流電圧であることを特徴とする請求項1に記載の汚染地盤の浄化方法。
- 透水層の表層を、通気を遮断する材質で覆うことを特徴とする請求項1に記載の汚染地盤の浄化方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004206998A JP4739702B2 (ja) | 2004-07-14 | 2004-07-14 | 汚染地盤の浄化方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004206998A JP4739702B2 (ja) | 2004-07-14 | 2004-07-14 | 汚染地盤の浄化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006026492A JP2006026492A (ja) | 2006-02-02 |
JP4739702B2 true JP4739702B2 (ja) | 2011-08-03 |
Family
ID=35893458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004206998A Expired - Fee Related JP4739702B2 (ja) | 2004-07-14 | 2004-07-14 | 汚染地盤の浄化方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4739702B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008211984A (ja) * | 2007-02-28 | 2008-09-18 | Shimane Univ | 土壌管理方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100834236B1 (ko) | 2007-01-08 | 2008-05-30 | (주)대우건설 | 전기저항 가열 및 공기주입/추출에 의한 오염 토양과지하수의 정화장치 및 정화방법 |
KR100803724B1 (ko) | 2007-03-29 | 2008-02-15 | (주)대우건설 | 비폐합 단면을 갖는 형강으로 이루어진 전극을 활용한전기저항가열법에 의한 오염 토양과 지하수의 정화장치 및정화방법 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0510083A (ja) * | 1991-07-05 | 1993-01-19 | James J Malot | 電気真空浄化方法 |
JPH10309562A (ja) * | 1997-05-13 | 1998-11-24 | Fujita Corp | 電気浸透法による汚染地盤浄化工法 |
JP2000084535A (ja) * | 1998-09-11 | 2000-03-28 | Hazama Gumi Ltd | 揮発性化合物による汚染土壌の浄化方法 |
JP2002001299A (ja) * | 2000-06-23 | 2002-01-08 | Hazama Gumi Ltd | 汚染土壌の浄化方法 |
JP2004009025A (ja) * | 2002-06-11 | 2004-01-15 | Kurita Water Ind Ltd | 有機塩素化合物で汚染された土壌の浄化方法 |
-
2004
- 2004-07-14 JP JP2004206998A patent/JP4739702B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008211984A (ja) * | 2007-02-28 | 2008-09-18 | Shimane Univ | 土壌管理方法 |
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JP2006026492A (ja) | 2006-02-02 |
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