JP4347717B2 - 土壌浄化方法 - Google Patents
土壌浄化方法 Download PDFInfo
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- JP4347717B2 JP4347717B2 JP2004042378A JP2004042378A JP4347717B2 JP 4347717 B2 JP4347717 B2 JP 4347717B2 JP 2004042378 A JP2004042378 A JP 2004042378A JP 2004042378 A JP2004042378 A JP 2004042378A JP 4347717 B2 JP4347717 B2 JP 4347717B2
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- slurry
- soil
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- 239000002689 soil Substances 0.000 title claims description 101
- 238000000034 method Methods 0.000 title claims description 56
- 238000000746 purification Methods 0.000 title claims description 32
- 239000002002 slurry Substances 0.000 claims description 113
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 92
- 239000000843 powder Substances 0.000 claims description 45
- 238000002347 injection Methods 0.000 claims description 42
- 239000007924 injection Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 229910052602 gypsum Inorganic materials 0.000 claims description 28
- 239000010440 gypsum Substances 0.000 claims description 28
- 238000005553 drilling Methods 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 20
- 239000012855 volatile organic compound Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005067 remediation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- 238000000354 decomposition reaction Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229950011008 tetrachloroethylene Drugs 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 3
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000004045 organic chlorine compounds Chemical class 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- KFUSEUYYWQURPO-UPHRSURJSA-N cis-1,2-dichloroethene Chemical compound Cl\C=C/Cl KFUSEUYYWQURPO-UPHRSURJSA-N 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002680 soil gas Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- LGXVIGDEPROXKC-UHFFFAOYSA-N 1,1-dichloroethene Chemical group ClC(Cl)=C LGXVIGDEPROXKC-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- KFUSEUYYWQURPO-OWOJBTEDSA-N trans-1,2-dichloroethene Chemical compound Cl\C=C\Cl KFUSEUYYWQURPO-OWOJBTEDSA-N 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Fire-Extinguishing Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Description
マグネタイト(Fe3O4)を含む酸化鉄粉を水に分散させたスラリーに圧縮空気を混入させて前記注入管に供給するステップと、
前記圧縮空気が混入された前記スラリーを、前記吐出口から前記土壌に向けて吐出させるステップとを含む土壌浄化方法が提供される。
2…土壌
3…ボーリングマシン
4…ロッド
5…混合装置
6…圧縮空気供給装置
7…スラリー供給ポンプ
8…容器
9、10、11、12…ライン
13…スイベルジョイント
14…吐出口
20…エジェクタ装置
21…外管
22…内管
23…流路縮小部
24…分岐部
25…開口部
30…内管
31…外管
32…上部管
33、34、35…吐出口
36…下部管
37…内管
38…外管
39…通路
40…鉄球
41…吐出口
42…栓
43…空気抜き穴
44…キャップ
45…Oリング
50…上部容器
51…下部容器
52…水
53…酸化鉄粉
54、57…撹拌手段
55…焼き石膏
56…弁
58…流量計
60…孔
61…ケーシング
62…ロッド
63…吐出口
64…土壌
Claims (6)
- 揮発性有機化合物により汚染された土壌に孔を削孔し、少なくとも1つの吐出口を備え前記少なくとも1つの吐出口に連続する管に螺旋溝が形成された注入管を前記孔に挿入するステップと、
マグネタイト(Fe3O4)を含む酸化鉄粉を水に分散させた後、焼き石膏を添加してスラリーを作成するステップと、
前記スラリーに圧縮空気を気泡状態で混入させて前記注入管に供給するステップと、
前記圧縮空気が混入された前記スラリーを、前記吐出口から前記土壌に向けて吐出させるステップとを含む、土壌浄化方法。 - 前記供給するステップでは、前記スラリーを噴射させ、前記圧縮空気を前記スラリーの流れの方向と反対方向に供給することにより、噴射された前記スラリーに前記圧縮空気を気泡として混入させることを特徴とする、請求項1に記載の土壌浄化方法。
- 前記吐出させるステップでは、前記注入管を回転および上昇させつつ、前記スラリーを吐出させることを特徴とする、請求項1または2に記載の土壌浄化方法。
- 前記挿入するステップは、複数の孔を削孔し、各孔にケーシングを挿入するステップと、前記ケーシング内に前記注入管を挿入した後、該ケーシングを前記孔から取り除くステップとを含む、請求項1〜3のいずれか1項に記載の土壌浄化方法。
- 前記注入管は、内部に前記吐出口を閉鎖する栓を備え、前記挿入するステップでは、前記栓により前記吐出口が閉鎖されており、前記吐出させるステップでは、前記注入管への前記スラリーの供給により前記栓が押し下げられ、前記吐出口を開放する、請求項1〜4のいずれか1項に記載の土壌浄化方法。
- 前記供給するステップは、所定量の前記スラリーを供給するステップを含み、前記吐出させるステップは、前記所定量のスラリーを吐出させた後、前記注入管を所定高さまで上昇させるステップを含み、前記供給するステップと前記吐出させるステップとを繰り返すことを特徴とする、請求項1〜5のいずれか1項に記載の土壌浄化方法。
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JP2004042378A JP4347717B2 (ja) | 2004-02-19 | 2004-02-19 | 土壌浄化方法 |
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JP2004042378A JP4347717B2 (ja) | 2004-02-19 | 2004-02-19 | 土壌浄化方法 |
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JP2005230667A JP2005230667A (ja) | 2005-09-02 |
JP4347717B2 true JP4347717B2 (ja) | 2009-10-21 |
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JP2004042378A Expired - Fee Related JP4347717B2 (ja) | 2004-02-19 | 2004-02-19 | 土壌浄化方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5737551B2 (ja) * | 2009-08-07 | 2015-06-17 | 清水建設株式会社 | 汚染土壌または地下水の浄化方法および装置 |
JP5366214B2 (ja) * | 2010-03-31 | 2013-12-11 | 前田建設工業株式会社 | 薬液注入工法 |
KR101161535B1 (ko) * | 2011-11-03 | 2012-07-11 | 주식회사 그린솔루션 | 오염토양 파쇄 정화 시스템 |
JP6159566B2 (ja) * | 2013-04-24 | 2017-07-05 | 株式会社大林組 | 気泡と鉄粉スラリーを用いた汚染地盤の原位置浄化システム |
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