JP2011041945A - 透過性電気化学式バイオバリアとその使用方法 - Google Patents
透過性電気化学式バイオバリアとその使用方法 Download PDFInfo
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Abstract
【解決手段】 上記課題を解決するために本発明は、バイオバリアを適当な電圧が印加される少なくとも1個の導電性繊維層と、前記導電性繊維層の隣辺に設置される陰極とを備えた透過性電気化学式のものとすることで解決した。また、その使用方法としては、少なくとも1個の導電性繊維層及び前記導電性繊維層の隣辺に設置される少なくとも1個の陰極とを備える透過性電気化学式バイオバリアを提供するステップと、前記透過性電気化学式バイオバリアに適当な電圧を印加するステップとを備えた。
【選択図】 図1
Description
本実験例は、ベンゼンを標的有機汚染物(濃度は約350 ppm)とし、汚染された土壌の複合微生物は植種菌源として、実験用フラスコの中で、分解及び生物電流発生テストを行い、電圧0.2 V vs. Ag/AgClを印加すると、実験の過程において、導電性活性炭繊維表面が徐々に生物膜に包まれるのが観察できる。
実験例2は、実験室中において、土壌カラムによって透過性電気化学式バイオバリアの模擬実験を行なったものである。本実施例における土壌カラムの長さは45 cm、内径3 cmで、一層の導電性活性炭繊維層(厚さ15cm)及びプラチナ(Pt)陰極を備え、前記陰極は、前記導電性活性炭繊維層隣側の距離5cmの位置に設置される。実験は連続流方式で行なわれ、水力の停留時間は2日以内である。進流溶液中に含まれる模擬汚染物質は、ベンゼン(benzene)、トルエン(toluene)、エチルベンゼン(ethylbenzene)、キシレン(xylene) (略称BTEX)で、テスト濃度は、それぞれ19524、15383、14981、7257 ppb前後である。その進出流を取り、そのBTEX残量を測定する。結果はBTEXにおいていずれも99%以上の除去効率を有することを示しており、これは、本バイオバリアの優越性を示している。
20 陰極
30 微生物
A 地下水の流れる方向
a〜d 矢印
B 有機汚染分解における化学反応方向
Claims (6)
- 適当な電圧が印加される少なくとも1個の導電性繊維層と、
前記導電性繊維層の隣辺に設置される陰極と、
を備えることを特徴とする透過性電気化学式バイオバリア。 - 前記導電性繊維層は、導電性炭繊維、金属繊維またはその組合せから成ることを特徴とする請求項1に記載の透過性電気化学式バイオバリア。
- 前記導電性炭繊維は、導電性活性炭繊維から成ることを特徴とする請求項2に記載の透過性電気化学式バイオバリア。
- 少なくとも1個の導電性繊維層及び前記導電性繊維層の隣辺に設置される少なくとも1個の陰極とを備える透過性電気化学式バイオバリアを提供するステップと、
前記透過性電気化学式バイオバリアに適当な電圧を印加するステップと、
を備えることを特徴とする透過性電気化学式バイオバリアの使用方法。 - 前記導電性繊維層は、導電性炭繊維、金属繊維またはその組合せから成ることを特徴とする請求項4に記載の透過性電気化学式バイオバリアの使用方法。
- 前記導電性炭繊維は、導電性活性炭繊維から成ることを特徴とする請求項5に記載の透過性電気化学式バイオバリアの使用方法。
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TW98128130 | 2009-08-21 | ||
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TW099127815 | 2010-08-19 | ||
TW99127815A TWI405725B (zh) | 2009-08-21 | 2010-08-19 | 透水性電化學微生物反應牆及其使用方法 |
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JP5314647B2 JP5314647B2 (ja) | 2013-10-16 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10230293A (ja) * | 1997-02-21 | 1998-09-02 | Ebara Corp | 微生物電極とそれを用いる水処理装置及び方法 |
JP2008093585A (ja) * | 2006-10-12 | 2008-04-24 | Mitsui Eng & Shipbuild Co Ltd | バイオリアクタ |
JP2008114191A (ja) * | 2006-11-07 | 2008-05-22 | Mitsui Eng & Shipbuild Co Ltd | アンモニア性窒素を含有する廃水の処理装置 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10230293A (ja) * | 1997-02-21 | 1998-09-02 | Ebara Corp | 微生物電極とそれを用いる水処理装置及び方法 |
JP2008093585A (ja) * | 2006-10-12 | 2008-04-24 | Mitsui Eng & Shipbuild Co Ltd | バイオリアクタ |
JP2008114191A (ja) * | 2006-11-07 | 2008-05-22 | Mitsui Eng & Shipbuild Co Ltd | アンモニア性窒素を含有する廃水の処理装置 |
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