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Research on the establishment of a new disinfection technique applying the pulsed electric field and the determination of its disinfection mechanism

Research Project

Project/Area Number 19K04668
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 22060:Environmental systems for civil engineering-related
Research InstitutionKitasato University

Principal Investigator

Furukawa Takashi  北里大学, 医療衛生学部, 講師 (90632729)

Co-Investigator(Kenkyū-buntansha) 上野 崇寿  大分工業高等専門学校, 電気電子工学科, 准教授 (30508867)
清 和成  北里大学, 医療衛生学部, 教授 (80324177)
亀井 樹  山梨大学, 大学院総合研究部, 助教 (80792168)
Amarasiri Mohan  北里大学, 医療衛生学部, 講師 (50815537)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsインパルス電界 / 薬剤耐性菌 / 薬剤耐性遺伝子 / 下水処理場 / 消毒 / パルス電界 / 下水処理 / インパルス電圧印加 / 消毒技術 / 耐性遺伝子
Outline of Research at the Start

本研究は、既存の消毒技術の欠点を補完できる技術の開発と導入に向けて、インパルス電圧印加技術を応用した新たな消毒技術の確立を目指すものである。さらに本技術では、単なる微生物細胞の不活化だけでなく、細胞内部の遺伝子をも破壊(不活化)可能な技術としての確立を考えている。これによって、近年、新たな水環境問題である薬剤耐性菌とその耐性遺伝子の不活化が可能になるため、これらの水環境中への拡散の抑制に大きく寄与できるものと考えている。本申請研究では、下水二次処理水を対象に、最適な消毒処理条件、およびその消毒機序に関わる知見・情報を明らかにし、実証実験に関する研究に発展させたいと考えている。

Outline of Final Research Achievements

We evaluated the suitability of pulsed electric field (PEF) technology as a new disinfection option in the sewage treatment plants (STPs) that can inactivate antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs). It was shown that PEF applied disinfection could inactivate not only vancomycin-resistant enterococci (VRE), but also vanA resistance gene. Cultivable VRE could be effectively inactivated by PEF applied disinfection, and were reduced to below the detection limit (log reduction value of VRE > 5 log). Although the vanA also showed a reduction of more than 4 log, it remained in the order of 105 copies/mL, suggesting that ARGs are more difficult to be inactivated than ARB in PEF applied disinfection. Among parameters in each applying condition verified in this study, the initial voltage was found to be the most important for inactivation of ARB and ARGs.

Academic Significance and Societal Importance of the Research Achievements

本研究では、インパルス電界(PEF)印加技術が薬剤耐性菌(ARB)だけでなく耐性遺伝子(ARGs)にまで不活化効果を示すことを明らかにした。ARBおよびARGsの水環境への主要な汚染源は、下水処理場であるといわれており、これまでにも塩素、UV、オゾン等の消毒法による不活化効果を検証した報告がある。それらの消毒法と比較しても、PEF印加消毒はARBについては遜色ない、ARGsについてはより高い削減効果を示すことがわかった。このことから、本研究における成果は、水環境におけるARBおよびARGsによる汚染拡大を抑制できる新たな消毒技術になる可能性があり、社会的意義も高いものと思われる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (32 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (22 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] Summary and Perspectives on Current Disinfection Technologies in Reducing Antibiotic Resistant Bacteria and Their Resistance Genes2022

    • Author(s)
      FURUKAWA TAKASHI、AMARASIRI MOHAN、UENO TAKAHISA、SEI KAZUNARI
    • Journal Title

      Japanese Journal of Water Treatment Biology

      Volume: 58 Issue: 1 Pages: 9-24

    • DOI

      10.2521/jswtb.58.9

    • ISSN
      0910-6758, 1881-0438
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inactivation of antibiotic resistant bacteria and their resistance genes in sewage by applying pulsed electric fields2022

    • Author(s)
      Furukawa Takashi、Ueno Takahisa、Matsumura Mina、Amarasiri Mohan、Sei Kazunari
    • Journal Title

      Journal of Hazardous Materials

      Volume: 424 Pages: 127382-127382

    • DOI

      10.1016/j.jhazmat.2021.127382

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prevalence of antibiotic resistance genes in drinking water of the Kathmandu Valley, Nepal2022

    • Author(s)
      Thakali Ocean、Malla Bikash、Raya Sunayana、Sthapit Niva、Sherchan Samendra P.、Furukawa Takashi、Sei Kazunari、Sherchand Jeevan B.、Haramoto Eiji
    • Journal Title

      Environmental Challenges

      Volume: - Pages: 100527-100527

    • DOI

      10.1016/j.envc.2022.100527

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 高電界による空間殺菌技術の構築2022

    • Author(s)
      上野崇寿, 古川隼士
    • Journal Title

      地域ケアリング

      Volume: 24 Pages: 81-85

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Release of Antibiotic-Resistance Genes from Hospitals and a Wastewater Treatment Plant in the Kathmandu Valley, Nepal2021

    • Author(s)
      Thakali Ocean、Malla Bikash、Tandukar Sarmila、Sthapit Niva、Raya Sunayana、Furukawa Takashi、Sei Kazunari、Sherchand Jeevan B.、Haramoto Eiji
    • Journal Title

      Water

      Volume: 13 Issue: 19 Pages: 2733-2733

    • DOI

      10.3390/w13192733

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 高電界による空間殺菌技術の構築2021

    • Author(s)
      上野崇寿, 古川隼士
    • Journal Title

      アレルギーの臨床

      Volume: 41 Pages: 1108-1112

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 高電界によるエアロゾル中病原性細菌の空間殺菌技術2021

    • Author(s)
      上野崇寿, 古川隼士
    • Journal Title

      Precision Medicine

      Volume: 4 Pages: 675-679

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Natural factories that manufacture antimicrobial resistance genes: quadruple blaGES-carrying plasmids in Aeromonas and Pseudomonas species.2021

    • Author(s)
      Shotaro Maehana, Ryotaro Eda, Aki Hirabayashi, Nagi Niida, Masaki Nakamura, Takashi Furukawa, Shinsuke Ikeda, Fumiaki Kojima, Kouji Sakai, Kazunari Sei, Hidero Kitasato, Masato Suzuki.
    • Journal Title

      Int J Antimicrob Agents.

      Volume: 28 Issue: 5 Pages: 106327-106327

    • DOI

      10.1016/j.ijantimicag.2021.106327

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Complete genome sequencing and comparative genomic analysis of KPC-2-producing Klebsiella pneumoniae isolated from a hospital sewage water in Japan.2021

    • Author(s)
      Ryotaro Eda, Shotaro Maehana, Aki Hirabayashi, Masaki Nakamura, Takashi Furukawa, Shinsuke Ikeda, Kouji Sakai, Fumiaki Kojima, Kazunari Sei, Masato Suzuki, Hidero Kitasato.
    • Journal Title

      J Glob Antimicrob Resist.

      Volume: 24 Pages: 180-182

    • DOI

      10.1016/j.jgar.2020.12.007

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inactivation of Vibrio fischeri by the Application of a Pulsed Electric Field2020

    • Author(s)
      Takahisa Ueno, Kyohei Asami, Junko Ninomiya, Takashi Furukawa, Takashi Sakugawa, Sunao Katsuki
    • Journal Title

      Transactions on GIGAKU

      Volume: 7 Issue: 1 Pages: 07002-1-07002-9

    • DOI

      10.34468/gigaku.7.1_07002-1

    • NAID

      130007879142

    • ISSN
      2435-5895
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Development of a High Repetition Impulse Power Supply for Sterilization by High Electric Fields2021

    • Author(s)
      Ueno, T., Asami, K., Furukawa, T., and Sakugawa, T.
    • Organizer
      International Symposium on Advances in Technology Education
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Abundanc e of Antimicrobial Resistant Bacteria and Their Resistance Profiles in Sagami River Basin2021

    • Author(s)
      Ogino, M., Kobayashi, Y., Kamei, T., Amarasiri, M., Furukawa, T., and Sei, K.
    • Organizer
      Water and Environment Technology Conference 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inactivation efficiency assessment of antimicrobial resistance genes (ARGs) existing as extracellular DNA using simple disinfection methods2021

    • Author(s)
      Kobayashi, H., Amarasiri, M., Furukawa, T., Sei, K., and Sano, D.
    • Organizer
      Water and Environment Technology Conference 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Abundanc e of Antimicrobial Resistant Bacteria and Their Resistance Profiles in Sagami River Basin2021

    • Author(s)
      Ogino, M., Kobayashi, Y., Kamei, T., Amarasiri, M., Furukawa, T., and Sei, K.
    • Organizer
      The 13th International Joint Workshop on Advanced Engineering Technology for Environment and Energy
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Abundance of Antimicrobial Resistant Bacteria and Their Antimicrobial Resistant Profiles in Hospital Sewage2021

    • Author(s)
      Yonemoto, J., Ogino, M., Niida, N., Eda, R., Maehana, S., Amarasiri, M., Furukawa, T., Kitasato, H., and Sei, K.
    • Organizer
      The 13th International Joint Workshop on Advanced Engineering Technology for Environment and Energy
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inactivation efficiency of extracellular antimicrobial resistance genes (ARGs) using simple d isinfection methods2021

    • Author(s)
      Kobayashi, H., Amarasiri, M., Furukawa, T., Sano, D., and Sei, K.
    • Organizer
      The 13th International Joint Workshop on Advanced Engineering Technology for Environment and Energy
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 病院排水と薬剤耐性2021

    • Author(s)
      古川隼士
    • Organizer
      日本水処理生物学会第57回大会(神奈川大会)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 本邦の病院排水より分離されたKPC-2 産生Klebsiella pneumoniae が保有する耐性プラスミドの分子遺伝学的解析2021

    • Author(s)
      江田諒太郎, 前花祥太郎, 古川隼士, 清和成, 鈴木仁人, 北里英郎
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 病院排水から分離された薬剤耐性Aeromonas 属の遺伝子解析2021

    • Author(s)
      新井田凪, 江田諒太郎, 前花祥太郎, 中村正樹, 古川隼士, 清和成, 北里英郎
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 環境DNA/環境RNA解析による衛生動物検出の時間的感度評価2021

    • Author(s)
      清和成, 大知鼓太郎, 飯塚洸平, 前田倖, Mohan Amarasiri, 古川隼士, 須江渚, 中島典之
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 環境DNAとして存在する薬剤耐性遺伝子への簡易消毒による不活化効果の評価2021

    • Author(s)
      小林大起, Amarasiri Mohan, 古川隼士, 清和成, 佐野大輔
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 相模川における薬剤耐性菌の存在実態と耐性プロファイルの調査2021

    • Author(s)
      荻野瑞葵, 米本譲, 小林由紀子, Amarasiri Mohan, 古川隼士, 清和成, 亀井樹
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 病院排水中の薬剤耐性菌の存在実態と耐性プロファイルの調査2021

    • Author(s)
      米本譲, 荻野瑞葵, 小林由紀子, 新井田凪, 江田諒太郎, 前花祥太郎, Amarasiri Mohan, 古川隼士, 北里英郎, 清和成
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] パルス電界印加技術を用いた薬剤耐性菌および耐性遺伝子の不活化効果の検証2021

    • Author(s)
      松村美那, 古川隼士, アマラシリモハン, 清和成, 上野崇寿
    • Organizer
      第55回日本水環境学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 環境RNA解析による衛生動物の高感度検出手法の開発および時間的感度の評価2020

    • Author(s)
      須江渚, 古川隼士, 中島典之, Amarasiri Mohan, 清和成
    • Organizer
      第57回環境工学研究フォーラム
    • Related Report
      2020 Research-status Report
  • [Presentation] パルス電界印加技術を応用した薬剤耐性菌および耐性遺伝子の削減効果2020

    • Author(s)
      松村美那, 古川隼士, 上野崇寿, Amarasiri Mohan, 清和成
    • Organizer
      第57回環境工学研究フォーラム
    • Related Report
      2020 Research-status Report
  • [Presentation] パルス電圧印加技術による薬剤耐性菌の不活化効果の検討2020

    • Author(s)
      松村美那, 古川隼士, 亀井樹, 上野崇寿, 清和成
    • Organizer
      第54回日本水環境学会年会(2019年度)
    • Related Report
      2019 Research-status Report
  • [Presentation] インパルス高電圧を用いたエアロゾル中の微生物の凝集および滅菌に関する研究2019

    • Author(s)
      柴山信之介, 上野崇寿, 古川隼士, 勝木淳
    • Organizer
      2019年度(第72回)電気・情報関係学会九州支部連合大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 低インピーダンス負荷への印加を目的とした大容量インパルス電源の開発2019

    • Author(s)
      後藤兼蔵, 上野崇寿, 古川隼士, 佐久川貴志
    • Organizer
      2019年度(第72回)電気・情報関係学会九州支部連合大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 塩素消毒およびパルス電界印加技術による薬剤耐性菌とその耐性遺伝子の不活化効果の比較2019

    • Author(s)
      古川隼士, 上野崇寿, 亀井樹, 清和成
    • Organizer
      第22回日本水環境学会シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Using High Electric Filed to Measure Aerosol-based Bacterial Inactivation2019

    • Author(s)
      Takahisa Ueno, Takashi Furukawa, Takashi Sakugawa, and Sunao Katsuki
    • Organizer
      2019 The 11th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology (APSPT-11)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A study on inactivation of antibiotic-resistant bacteria and their resistance genes by applying pulsed electric field2019

    • Author(s)
      Takashi Furukawa, Mina Matsumura, Takahisa Ueno, and Kazunari Sei
    • Organizer
      8th IWA-ASPIRE Conference and Exhibition
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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