JP5868373B2 - 汚染物質含有地下水及び土壌の浄化方法 - Google Patents
汚染物質含有地下水及び土壌の浄化方法 Download PDFInfo
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- 239000000356 contaminant Substances 0.000 claims description 18
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Description
ここで、「並行」とは、工程Bと工程Cとが、同時に行われ、かつ、工程Bに続いて工程Cが行われることをいう。
また前記工程Aに使用する汚染物質用溶出剤が土壌から溶出させる物質と微生物分解を促進する物質とを含むのがよい。
ここで高濃度とは、例えばテトラクロロエチレンであれば2.0mg/L以上、トリクロロエチレンでは2.7mg/L以上、シス−1,2−ジクロロエチレンであれば10mg/L以上、1,1−ジクロロエチレンであれば、0.30mg/L以上、塩化ビニルモノマーであれば2.0mg/L以上、トリクロロエタンであれば77mg/L以上、ジクロロエタンであれば29mg/L以上の濃度で含有される場合である。
さらに対象とする汚染物質は、ベンゼン、トルエン、エチルベンゼン、キシレン、1,4−ジオキサン、ナフサ、灯油、軽油、重油である。
1 洗浄液調製タンク
2 注入井戸
3 回収井戸
4 ポンプ
5 汚染物質回収装置
6 硫酸イオン・硝酸イオン除去装置
Claims (2)
- テトラクロロエチレン、トリクロロエチレン、1,1−ジクロロエチレン、シス−1,2−ジクロロエチレン、1,1,1−トリクロロエタン、1,1−ジクロロエタンの少なくともいずれか一の高濃度の汚染物質で汚染された地下水及び土壌に注入井戸から微生物が代謝可能な汚染物質を溶出させる物質と汚染物質の微生物による分解を促進する物質とを含む汚染物質用溶出剤を水のみで調製した汚染物質用溶出液を注入する工程Aと前記媒質中から前記工程Aによって注入された前記汚染物質用溶出液によって溶出して回収する工程Bと、汚染物質を前記媒質中の微生物によって分解する工程Cとを有し、前記工程Bと工程Cとを並行して行い、前記工程Bが、注入液を井戸から回収する工程B−1と、回収した注入液より汚染物質を除去回収する工程B−2とを含むことを特徴とする汚染物質含有地下水及び土壌の浄化方法。
- 前記工程Aに使用する汚染物質用溶出剤がメタノール、エタノール、プロパノール、ブタノール、アセトン、ステアロイル乳酸ナトリウム、ショ糖脂肪酸エステルからなる群から選択される少なくとも一の物質と、ギ酸、酢酸、プロピオン酸、酪酸、乳酸及びクエン酸並びにそれらのナトリウム塩、カリウム塩、カルシウム塩、並びに、グルコース、フルクトース、ガラクトース、ラクトース、マルトース、トレハロース、ペプトン、トリプトン、酵母エキス及びそれらの物質を含む素材からなる群から選択される少なくとも一の物質と、によって構成される請求項1に記載の汚染物質含有地下水及び土壌の浄化方法。
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WO2018043507A1 (ja) | 2016-08-29 | 2018-03-08 | 株式会社竹中工務店 | 地下土壌浄化方法 |
WO2018087995A1 (ja) | 2016-11-08 | 2018-05-17 | 株式会社竹中工務店 | 地下土壌浄化方法 |
CN107243508A (zh) * | 2017-06-20 | 2017-10-13 | 青岛理工大学 | 一种快速处置含油土壤的方法 |
CN116460126B (zh) * | 2023-05-12 | 2023-10-13 | 江苏暨之阳环保科技有限公司 | 利用活性污泥修复多环芳烃污染土壤的方法 |
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US6379083B1 (en) * | 1998-07-10 | 2002-04-30 | Hazama Corporation | Method for the remediation of soil contaminated with organic halide compounds |
JP2001300506A (ja) * | 2000-04-19 | 2001-10-30 | Raito Kogyo Co Ltd | 汚染地盤構成物類の浄化方法 |
JP4257781B2 (ja) * | 2003-08-11 | 2009-04-22 | 株式会社ササクラ | 有機塩素化合物にて汚染された地下土壌の浄化方法 |
JP2011224432A (ja) * | 2010-04-15 | 2011-11-10 | Ohbayashi Corp | 汚染地盤の浄化方法及び浄化材 |
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