JP3968341B2 - 土壌浄化方法 - Google Patents
土壌浄化方法 Download PDFInfo
- Publication number
- JP3968341B2 JP3968341B2 JP2003405546A JP2003405546A JP3968341B2 JP 3968341 B2 JP3968341 B2 JP 3968341B2 JP 2003405546 A JP2003405546 A JP 2003405546A JP 2003405546 A JP2003405546 A JP 2003405546A JP 3968341 B2 JP3968341 B2 JP 3968341B2
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- JP
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- Prior art keywords
- purification
- injection
- ground
- pressure injection
- soil
- 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.)
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- 238000000746 purification Methods 0.000 title claims description 83
- 238000000034 method Methods 0.000 title claims description 34
- 239000002689 soil Substances 0.000 title claims description 32
- 238000002347 injection Methods 0.000 claims description 67
- 239000007924 injection Substances 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 44
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 claims description 4
- 231100000719 pollutant Toxicity 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000004568 cement Substances 0.000 description 6
- 239000011538 cleaning material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010907 mechanical stirring Methods 0.000 description 4
- 238000005067 remediation Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- UBOXGVDOUJQMTN-UHFFFAOYSA-N 1,1,2-trichloroethane Chemical compound ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N carbon tetrachloride Substances ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- -1 tetrachloroethylene, dichloroethylene, carbon Chemical class 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Description
(1)請求項1に係る土壌浄化方法は、浄化材スラリーを地盤中の浄化対象域へ高圧噴射し、浄化材と汚染物質との反応により土壌を浄化する土壌浄化方法において、前記浄化材スラリーとして、水と酸化鉄粉を混合したスラリー、又は、水と鉄粉と酸化鉄粉を混合したスラリーを用い、
高圧噴射注入ロッドの周囲に1又は複数の噴射ノズルが開口しており、前記浄化対象域にて前記高圧噴射注入ロッドを回転及び上下いずれかの方向に移動させつつ前記噴射ノズルから前記浄化材スラリーを断続的に高圧噴射し、
前記浄化材スラリーの断続的な高圧噴射により、高圧噴射が行われて原地盤が切削撹拌され前記浄化材スラリーと混合されて形成される浄化材層と、高圧噴射が行われず原地盤を維持したままの地盤層とを交互に積層させることを特徴とする。
12a、12b..12j 浄化材層
13 下端深度
14 上端深度
20 高圧噴射注入ロッド
20a 掘削ビット
20b 噴射孔
21 ロッド駆動装置
22 高圧ポンプ装置
50 地盤
51 地表
52a、52b..52i 地盤層
D 浄化対象域直径
L 浄化対象域長さ
Claims (3)
- 浄化材スラリーを地盤中の浄化対象域へ高圧噴射し、浄化材と汚染物質との反応により土壌を浄化する土壌浄化方法において、
前記浄化材スラリーとして、水と酸化鉄粉を混合したスラリー、又は、水と鉄粉と酸化鉄粉を混合したスラリーを用い、
高圧噴射注入ロッドの周囲に1又は複数の噴射ノズルが開口しており、前記浄化対象域にて前記高圧噴射注入ロッドを回転及び上下いずれかの方向に移動させつつ前記噴射ノズルから前記浄化材スラリーを断続的に高圧噴射し、
前記浄化材スラリーの断続的な高圧噴射により、高圧噴射が行われて原地盤が切削撹拌され前記浄化材スラリーと混合されて形成される浄化材層と、高圧噴射が行われず原地盤を維持したままの地盤層とを交互に積層させることを特徴とする土壌浄化工法。 - 前記積層した各地盤層の厚さが10〜50cmであることを特徴とする請求項1に記載の土壌浄化方法。
- 前記鉄粉又は酸化鉄粉の平均粒径が2mm以下であることを特徴とする請求項1又は2に記載の土壌浄化方法。
Priority Applications (1)
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JP2003405546A JP3968341B2 (ja) | 2003-12-04 | 2003-12-04 | 土壌浄化方法 |
Applications Claiming Priority (1)
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JP2003405546A JP3968341B2 (ja) | 2003-12-04 | 2003-12-04 | 土壌浄化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005161236A JP2005161236A (ja) | 2005-06-23 |
JP3968341B2 true JP3968341B2 (ja) | 2007-08-29 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003405546A Expired - Lifetime JP3968341B2 (ja) | 2003-12-04 | 2003-12-04 | 土壌浄化方法 |
Country Status (1)
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JP (1) | JP3968341B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5479006B2 (ja) * | 2009-09-15 | 2014-04-23 | 戸田工業株式会社 | 土壌・地下水の浄化方法 |
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2003
- 2003-12-04 JP JP2003405546A patent/JP3968341B2/ja not_active Expired - Lifetime
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