JP4662546B2 - 汚染土壌の浄化方法 - Google Patents
汚染土壌の浄化方法 Download PDFInfo
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- JP4662546B2 JP4662546B2 JP2005098213A JP2005098213A JP4662546B2 JP 4662546 B2 JP4662546 B2 JP 4662546B2 JP 2005098213 A JP2005098213 A JP 2005098213A JP 2005098213 A JP2005098213 A JP 2005098213A JP 4662546 B2 JP4662546 B2 JP 4662546B2
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- JP
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- Prior art keywords
- soil
- contaminated soil
- heating
- magnesium
- temperature
- 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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- 239000002689 soil Substances 0.000 title claims description 143
- 238000000034 method Methods 0.000 title claims description 29
- 238000000746 purification Methods 0.000 title description 16
- 229910052785 arsenic Inorganic materials 0.000 claims description 20
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 20
- 239000003344 environmental pollutant Substances 0.000 claims description 20
- 231100000719 pollutant Toxicity 0.000 claims description 20
- 229910001385 heavy metal Inorganic materials 0.000 claims description 19
- 239000012855 volatile organic compound Substances 0.000 claims description 18
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 16
- 239000000347 magnesium hydroxide Substances 0.000 claims description 16
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 150000002681 magnesium compounds Chemical class 0.000 claims description 11
- 239000000341 volatile oil Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 43
- 239000003921 oil Substances 0.000 description 17
- 238000010828 elution Methods 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 14
- 230000007613 environmental effect Effects 0.000 description 11
- 239000000356 contaminant Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 5
- 150000002013 dioxins Chemical class 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011221 initial treatment Methods 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 229950011008 tetrachloroethylene Drugs 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- TUNFSRHWOTWDNC-UHFFFAOYSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000002035 hexane extract Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 description 1
- 239000002370 magnesium bicarbonate Substances 0.000 description 1
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
- 235000014824 magnesium bicarbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fire-Extinguishing Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Description
また、本発明に係る汚染土壌の浄化方法は、前記温度範囲の上限を700゜C以下に代えて、600゜C未満とするものである。
Claims (4)
- 揮発性有機化合物及び油の少なくともいずれかからなる汚染物質と重金属とが存在している汚染土にマグネシウム化合物を添加して一次処理土とし、該一次処理土を、前記汚染物質に応じた揮発可能温度が下限、前記一次処理土の酸化反応を制御可能な温度が上限となる温度範囲で気密状態にて加熱して二次処理土とし、該二次処理土を一般土として再利用する汚染土壌の浄化方法であって、前記温度範囲の上限を700゜C以下とすることを特徴とする汚染土壌の浄化方法。
- 前記温度範囲の上限を700゜C以下に代えて、600゜C未満とする請求項1記載の汚染土壌の浄化方法。
- 前記マグネシウム化合物を水酸化マグネシウムとする請求項1又は請求項2記載の汚染土壌の浄化方法。
- 前記重金属をヒ素及び鉛とする請求項1乃至請求項3のいずれか一記載の汚染土壌の浄化方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005098213A JP4662546B2 (ja) | 2005-03-30 | 2005-03-30 | 汚染土壌の浄化方法 |
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JP2005098213A JP4662546B2 (ja) | 2005-03-30 | 2005-03-30 | 汚染土壌の浄化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006272243A JP2006272243A (ja) | 2006-10-12 |
JP4662546B2 true JP4662546B2 (ja) | 2011-03-30 |
Family
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Family Applications (1)
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JP2005098213A Active JP4662546B2 (ja) | 2005-03-30 | 2005-03-30 | 汚染土壌の浄化方法 |
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JP (1) | JP4662546B2 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5067280A (ja) * | 1973-10-22 | 1975-06-05 | ||
JP2003190917A (ja) * | 2001-10-15 | 2003-07-08 | Nippon Kankyo System:Kk | 焼却灰の処理方法及び処理装置 |
JP2003212620A (ja) * | 2002-01-28 | 2003-07-30 | Taiheiyo Cement Corp | 人工骨材及びその製造方法 |
JP2004298825A (ja) * | 2003-04-01 | 2004-10-28 | Meidensha Corp | 乾物資源材料と炭化物資源材料とその製造方法 |
JP2004298828A (ja) * | 2003-04-01 | 2004-10-28 | Meidensha Corp | 循環資源資材料とその製造方法 |
JP2004313982A (ja) * | 2003-04-17 | 2004-11-11 | Kazuo Otomo | 土壌浄化材 |
-
2005
- 2005-03-30 JP JP2005098213A patent/JP4662546B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5067280A (ja) * | 1973-10-22 | 1975-06-05 | ||
JP2003190917A (ja) * | 2001-10-15 | 2003-07-08 | Nippon Kankyo System:Kk | 焼却灰の処理方法及び処理装置 |
JP2003212620A (ja) * | 2002-01-28 | 2003-07-30 | Taiheiyo Cement Corp | 人工骨材及びその製造方法 |
JP2004298825A (ja) * | 2003-04-01 | 2004-10-28 | Meidensha Corp | 乾物資源材料と炭化物資源材料とその製造方法 |
JP2004298828A (ja) * | 2003-04-01 | 2004-10-28 | Meidensha Corp | 循環資源資材料とその製造方法 |
JP2004313982A (ja) * | 2003-04-17 | 2004-11-11 | Kazuo Otomo | 土壌浄化材 |
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JP2006272243A (ja) | 2006-10-12 |
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