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Prediction and Control of Fecal Pollution by Combined Sewer Overflows in Urban Coastal Waters

Research Project

Project/Area Number 20H02283
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22060:Environmental systems for civil engineering-related
Research InstitutionChuo University (2021-2022)
The University of Tokyo (2020)

Principal Investigator

Furumai Hiroaki  中央大学, 研究開発機構, 機構教授 (40173546)

Co-Investigator(Kenkyū-buntansha) 春日 郁朗  東京大学, 大学院工学系研究科(工学部), 准教授 (20431794)
栗栖 太  東京大学, 大学院工学系研究科(工学部), 教授 (30312979)
高田 秀重  東京農工大学, (連合)農学研究科(研究院), 教授 (70187970)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2020: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords環境質定量化・予測 / 合流式下水道 / 雨天時汚濁制御・管理 / 糞便汚染 / 都市沿岸域 / 健康リスク
Outline of Research at the Start

本研究では、合流式下水道雨天時越流水由来の汚濁負荷が都市沿岸域の糞便汚染に及ぼす影響を、降雨後水質調査と沿岸域の3次元流動水質モデル解析を組み合わせて評価してきた成果を受けて、さらに汚染実態の多角的な把握を行うとともに糞便汚染の予測手法を高度化することを目指す。潮位と塩分濃度の観測データを用いた流動水質モデルの検証を深めることで、沿岸域における糞便汚染の指標微生物や汚水マーカーの時空間濃度分布の再現性を向上させる。そして、都市沿岸域の水辺空間における降雨後の汚染水質予測を行うこと、雨水滞水池の効率的運用や水中スクリーンなどの汚染制御・管理シナリオの効果評価にも資することを目的とする。

Outline of Final Research Achievements

Focusing on fecal pollution associated with combined sewer overflows in urban coastal areas, the following research results were obtained through a combination of fine day and post-rainfall water quality surveys and 3-D flow water quality modeling.
(1) The fecal pollution status was evaluated from the disappearance of indicator microbes and sewage markers in the coastal area around Odaiba Seaside Park during summer. The characteristics of their extinction were summarized by the difference of environmental persistence, and the results were used as observation data for the validation of the developed model.
(2) The model newly introduced the inactivation kinetics of E. coli by sunlight and salinity to improve the reproducibility of its concentration changes after rainfall. Then, a database of E. coli concentration changes in Odaiba Seaside Park was constructed for each categorized rainfall type.

Academic Significance and Societal Importance of the Research Achievements

都市沿岸域の水辺空間で「快適に水遊びができる」という目標のためには、合流式下水道雨天時越流水に伴う健康リスク問題を解決することが非常に重要である。本研究の成果は、雨天時越流水による都市沿岸域の糞便汚染に及ぼす影響を沿岸域3次元流動水質モデルで定量的に評価することに貢献するものである。様々な降雨条件や潮汐条件での沿岸域における指標微生物や汚水マーカーの濃度変化の再現性を向上させたことで、発生した降雨の特徴を踏まえてお台場海浜公園における糞便汚染レベル評価や水浴の可否判断に活用することが可能となる。また、モデルは雨水滞水池などの汚染対策シナリオの効果評価にも利用することもできる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (24 results)

All 2023 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (17 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] Trial Operation of Water-quality Forecasting System Based on Fecal Pollution Indicators for a Beach in Odaiba Marine Park2021

    • Author(s)
      北山 千鶴, 森田 健二, 福地 広識, 李 星愛, 古米 弘明
    • Journal Title

      Journal of Japan Society on Water Environment

      Volume: 44 Issue: 3 Pages: 59-68

    • DOI

      10.2965/jswe.44.59

    • NAID

      130008036686

    • ISSN
      0916-8958, 1881-3690
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of new eligible indicator organisms for combined sewer overflow via 16S rRNA gene amplicon sequencing in Kanda River, Tokyo2021

    • Author(s)
      Daniel Ekhlas, Futoshi Kurisu, Ikuro Kasuga, Tomislav Cernava, Gabriele Berg, Miaomiao Liu, and Hiroaki Furumai
    • Journal Title

      Journal of Environmental Management

      Volume: 284 Pages: 112059-112059

    • DOI

      10.1016/j.jenvman.2021.112059

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microplastics in urban wastewater and estuarine water: Importance of street runoff2021

    • Author(s)
      Masaya SUGIURA, Hideshige TAKADA, Naohiko TAKADA, Kaoruko MIZUKAWA, Shumpei TSUYUKI and Hiroaki FURUMAI
    • Journal Title

      Environmental Monitoring and Contaminants Research

      Volume: 1 Issue: 0 Pages: 54-65

    • DOI

      10.5985/emcr.20200006

    • NAID

      130008026116

    • ISSN
      2435-7685
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of long-duration CSO events under different tidal change conditions on distribution of microbial indicators and PPCPs in Sumida river estuary of Tokyo Bay, Japan2020

    • Author(s)
      Poopipattana Chomphunut、Suzuki Motoaki、Furumai Hiroaki
    • Journal Title

      Environmental Science and Pollution Research

      Volume: 28 Issue: 6 Pages: 7212-7225

    • DOI

      10.1007/s11356-020-11046-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] EFFECTS OF SUNLIGHT AND SALINITY INACTIVATION ON THE FATE OF FECAL INDICATOR MICROORGANISMS IN RAW SEWAGE2020

    • Author(s)
      SUZUKI Motoaki、POOPIPATTANA Chomphunut、FURUMAI Hiroaki
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 7 Pages: III_411-III_421

    • DOI

      10.2208/jscejer.76.7_III_411

    • NAID

      130007999700

    • ISSN
      2185-6648
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CATEGORIZATION OF RAINFALL EVENTS USING RAINFALL CHARACTERISTICS REFLECTING CSO VOLUMES IN TOKYO WARDS AREA2020

    • Author(s)
      YAMAMOTO Kanako、FURUMAI Hiroaki
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 7 Pages: III_535-III_542

    • DOI

      10.2208/jscejer.76.7_III_535

    • NAID

      130007999656

    • ISSN
      2185-6648
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 化学マーカーの近年の応用例と今後の展望2020

    • Author(s)
      高田秀重
    • Journal Title

      水環境学会誌 (特集論文)

      Volume: 43 Pages: 325-327

    • Related Report
      2020 Annual Research Report
  • [Presentation] 水環境における薬剤耐性問題2023

    • Author(s)
      春日郁朗
    • Organizer
      東大水フォーラム公開シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 雨天時越流量分布と潮汐条件を反映したお場における大腸菌濃度変化データベース2023

    • Author(s)
      Chomphunut POOPIPATTANA、Kyuhyun PARK、古米 弘明
    • Organizer
      第57回日本水環境学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 水質モニタリングに基づくお台場海水浴予報システムの運用改善策の検討2023

    • Author(s)
      徳岡 誠人、市橋 拓弥、森田 健二、古米 弘明
    • Organizer
      第57回日本水環境学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Improving Model Accuracy of E. coli Inactivation behavior in the CSO-impacted Estuary2022

    • Author(s)
      Chomphunut POOPIPATTANA, Motoaki SUZUKI, Hiroaki FURUMAI
    • Organizer
      Water and Environment Technology Conference Online 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Street runoff as an important source of land-derived microplastics2022

    • Author(s)
      Hideshige Takada, Seiya Hirano, Kei Kobayashi, Bee Geok Yeo, Kaoruko Mizukawa
    • Organizer
      The 7th International Marine Debris Conference @ Busan
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] E. coli decay behavior in the estuary of Tokyo considering inactivation effects of solar radiation and salinity: experiment and modelling2022

    • Author(s)
      Chomphunut POOPIPATTANA、Motoaki SUZUKI, Hiroaki FURUMAI
    • Organizer
      The 13th International Symposium on Southeast Asian Water Environment (SEAWE2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 河口沿岸域水質モデル計算を用いたお台場海水浴予報システムの開発2022

    • Author(s)
      古米弘明
    • Organizer
      中央大学理工学研究所・研究開発機構研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 雨天時越流下水のマーカーとしての直鎖アルキルベンゼン(LABs) とステロール類の挙動評価とその応用2022

    • Author(s)
      露木俊平、高田秀重、水川薫子、古米弘明
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 下水中の化学マーカー合成甘味料の組成および下水処理効率2022

    • Author(s)
      高田 秀重、遠藤 果怜、水川 薫子、古米 弘明
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 降雨と潮汐の組み合わせ特性を考慮した大腸菌濃度モデル計算を用いたお台場海水浴予報2022

    • Author(s)
      古米 弘明、POOPIPATTANA Chomphunut
    • Organizer
      第56回日本水環境学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Water-quality Forecasting System2022

    • Author(s)
      Hiroaki FURUMAI
    • Organizer
      The 9th World Water Forum @ Dakar
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Influence of Tidal Conditions on Temporal Change in E. coli Concentration at Odaiba Seaside Park after Rainfall Events: A Modelling-based Study2021

    • Author(s)
      Chomphunut POOPIPATTANA, Hiroaki FURUMAI
    • Organizer
      Water and Environment Technology Conference Online2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] お台場海浜公園における降雨後の大腸菌濃度変化に及ぼす潮汐影響のモデル評価2021

    • Author(s)
      古米弘明, Chomphunut POOPIPATTANA
    • Organizer
      第58回環境工学研究フォーラム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大腸菌濃度のモデル計算結果を活用したお台場海水浴予報システムの試行と今後の課題2021

    • Author(s)
      森田 健二,市橋 拓弥 ,古米 弘明
    • Organizer
      第58回環境工学研究フォーラム
    • Related Report
      2021 Annual Research Report
  • [Presentation] A model-based study to investigate the influence of tidal conditions on temporal E. coli concentration at Odaiba seaside park after variation of rainfall events2021

    • Author(s)
      Chomphunut POOPIPATTANA, Hiroaki FURUMAI
    • Organizer
      The 4th International Forum on Asian Water Environment Technology (IFAWET2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modelling the Fate of CSO-derived PPCPs and E. coli in Tokyo Coastal Area after Rainfall Events and Comparison with Field Measurements2020

    • Author(s)
      Chomphunut POOPIPATTANA and Hiroaki FURUMAI
    • Organizer
      Water and Environment Technology Conference Online2020 on 7th-8th November
    • Related Report
      2020 Annual Research Report
  • [Presentation] お台場海浜公園における海水浴予報のための降雨後糞便汚染予測データベースの構築2020

    • Author(s)
      古米弘明
    • Organizer
      第57回下水道研究発表会講演集,pp.382-384. (8/18-20, 誌上発表)
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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