JP6316118B2 - 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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- JP6316118B2 JP6316118B2 JP2014133579A JP2014133579A JP6316118B2 JP 6316118 B2 JP6316118 B2 JP 6316118B2 JP 2014133579 A JP2014133579 A JP 2014133579A JP 2014133579 A JP2014133579 A JP 2014133579A JP 6316118 B2 JP6316118 B2 JP 6316118B2
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- 239000002689 soil Substances 0.000 title claims description 105
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- 239000003463 adsorbent Substances 0.000 claims description 52
- 238000005498 polishing Methods 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 239000000356 contaminant Substances 0.000 claims description 20
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- 229910021536 Zeolite Inorganic materials 0.000 claims description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 7
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- 239000004576 sand Substances 0.000 description 23
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 description 18
- 238000005406 washing Methods 0.000 description 12
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
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- 239000002734 clay mineral Substances 0.000 description 6
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- 238000004898 kneading Methods 0.000 description 5
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- 239000002002 slurry Substances 0.000 description 5
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- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 4
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- 238000001179 sorption measurement Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
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- 230000005484 gravity Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
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- 241000628997 Flos Species 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
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- 239000003673 groundwater Substances 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
- 239000002957 persistent organic pollutant Substances 0.000 description 2
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- PFFIDZXUXFLSSR-UHFFFAOYSA-N 1-methyl-N-[2-(4-methylpentan-2-yl)-3-thienyl]-3-(trifluoromethyl)pyrazole-4-carboxamide Chemical compound S1C=CC(NC(=O)C=2C(=NN(C)C=2)C(F)(F)F)=C1C(C)CC(C)C PFFIDZXUXFLSSR-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 208000005156 Dehydration Diseases 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
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- 238000000354 decomposition reaction Methods 0.000 description 1
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- 238000006297 dehydration reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- -1 etc.) Substances 0.000 description 1
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- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- JCCNYMKQOSZNPW-UHFFFAOYSA-N loratadine Chemical compound C1CN(C(=O)OCC)CCC1=C1C2=NC=CC=C2CCC2=CC(Cl)=CC=C21 JCCNYMKQOSZNPW-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
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- 239000013049 sediment Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
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- 239000010802 sludge Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
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Images
Landscapes
- Processing Of Solid Wastes (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
汚染土壌の表面研磨を吸着剤の存在下に行うことを特徴とする汚染土壌の浄化方法により達成することができる。
POPs農薬であるベンゼンヘキサクロリド(BHC:土壌環境指針値=50mg/kg)で汚染された土壌3.8kgを、湿式ふるい装置(電磁式振とう機AS200;(株)レッチェ製)を用いた分級処理により粒径範囲0.075〜2mmの土壌(BHC含有量=213mg/kg)1.6kgを得た。
羽根(寸法:長さ20cm、幅15cmの木の葉型パドル、回転数:126rpm(回転/分)。
吸着剤を使用しない以外は、実施例1と同様に研磨処理を行った。研磨処理の時間を20分、40分、60分と行い、それぞれのBHC含有量を測定した。
POPs農薬であるベンゼンヘキサクロリド(BHC:土壌環境指針値=50mg/kg)で汚染された土壌7.5kgを、湿式ふるい装置(電磁式振とう機AS200;(株)レッチェ製を用いた分級処理により粒径範囲0.075〜2mmの土壌(BHC含有量=483mg/kg)3.2kgを得た。
吸着剤を使用しない以外は、実施例2と同様に研磨処理を行った。研磨処理の時間を20分、40分、60分と行い、それぞれのBHC含有量を測定した。
21 多段ロータ
22 スイング式のブレード
31 ロータ
33 磨砕室
34 ホッパー
41 羽根
43 容器
51 循環用配管
52 サンドポンプ
55 汚染土壌
Claims (7)
- 汚染された土壌を表面研磨することにより汚染物質を除去する汚染土壌の浄化方法であって、
汚染された土壌の汚染物質が農薬であり、
汚染土壌の表面研磨を、吸着剤の存在下に行うことを特徴とする汚染土壌の浄化方法。 - 吸着剤が粒子あり、その吸着剤粒子のメジアン径(d90)が、汚染土壌の最小粒径より5μm以上小さいこと請求項1に記載の浄化方法。
- 吸着剤粒子のメジアン径(d90)が、30〜60μmの範囲にある請求項2に記載の浄化方法。
- 吸着剤が、活性炭又はゼオライトである請求項1〜3のいずれか1項に記載の浄化方法。
- 汚染土壌の表面研磨を乾式で行う請求項1〜4のいずれかに記載の浄化方法。
- 汚染土壌の表面研磨を湿式で行う請求項1〜4のいずれかに記載の浄化方法。
- 汚染土壌の表面研磨を行う前に、汚染土壌を分級処理して、吸着剤粒子のメジアン径(d90)より5μm以上大きな粒子の処理土壌を得、これを表面研磨する請求項1〜6のいずれかに記載の浄化方法。
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CN105728445A (zh) * | 2016-01-26 | 2016-07-06 | 遂宁市华旭科技有限公司 | 一种利用生物质活性炭治理土地污染的方法 |
JP7033484B2 (ja) * | 2018-04-16 | 2022-03-10 | 清水建設株式会社 | 農薬汚染土壌の洗浄処理システム及び洗浄処理方法 |
CN111171822A (zh) * | 2020-01-07 | 2020-05-19 | 扬州工业职业技术学院 | 一种沸石改性果壳活性炭的制备方法及其在改良农田土壤和面源污染减排中的应用 |
CN112592720A (zh) * | 2020-12-15 | 2021-04-02 | 中国矿业大学 | 一种以粉煤灰为原料制备复合型固化剂的方法及其在修复矿区土壤中的应用 |
CN112979043B (zh) | 2021-03-05 | 2022-08-26 | 生态环境部南京环境科学研究所 | 有机氯农药污染土壤修复用增效洗脱液的净化回收装置 |
CN117225877A (zh) * | 2023-09-08 | 2023-12-15 | 中国科学院生态环境研究中心 | 一种土壤中苯并(a)芘污染的处理方法 |
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US5242503A (en) * | 1990-12-17 | 1993-09-07 | Westinghouse Electric Corp. | Method of restoring contaminated solids using ion exchange powder contact |
JP3444395B2 (ja) * | 1997-08-08 | 2003-09-08 | 株式会社大林組 | 油汚染土の処理方法 |
JP2005186057A (ja) * | 2003-12-05 | 2005-07-14 | Mitsui Eng & Shipbuild Co Ltd | 汚染土壌の浄化方法 |
JP2013178177A (ja) * | 2012-02-28 | 2013-09-09 | Takenaka Komuten Co Ltd | 土壌除染処理方法 |
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