Establishment of international water quality standard and health effects scenarios in wastewater irrigation system

• Project/Area Number: 15H05339
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Environmental risk control and evaluation
• Research Institution: Kisarazu National College of Technology
• Principal Investigator: Okubo Tsutomu 木更津工業高等専門学校, 環境都市工学科, 准教授 (60581519)
• Research Collaborator: Uemura Shigeki ; Yasui Nobuhito ; Iguchi Akinori ; Tawfik Ahmed ; Tyagi Vinay Kumar
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000); Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: 下水処理水の灌漑利用 / 水系感染リスク / 社会工学的評価

Outline of Final Research Achievements

The use of untreated sewage in agriculture is gaining attention as a result of rapid urbanization and increased global water scarcity. However, the incidence of waterborne infections among farmers in such areas is increasing due to the exposure of contaminated sewage. The aim of this study was to estimate the risk and health impact related to waterborne infections in farmers using agricultural drainage wastewater (ADW) for irrigation in the West Nile Delta. A total of nine viruses were detected by quantitative PCR and quantitative real-time PCR in ADW samples. The results of quantitative microbial risk assessment and disability-adjusted life year evaluation indicated that ADW of the Dishody drain is not acceptable for irrigation reuse. A water recirculation system including appropriate sewage treatment technology must be quickly installed to reduce microbial risks for farmers in the West Nile Delta.

Academic Significance and Societal Importance of the Research Achievements

世界人口の増加により一人当りが使用可能な淡水資源量が減少する中、下水の灌漑利用が今後も世界的に増えていくと予想される。しかしながら下水には病原性微生物やウイルスなど、人の健康に直結する危険因子が含まれており、安全を担保した上での利用が求められる。本研究では、下水灌漑を行っている諸外国において汚染の実態調査を行い、現地で栽培されている農作物から農業従事者が農作業中に汚水を誤飲する量と頻度を設定し、人に対する健康影響を評価した。また、健康リスクを低減するにはそれら危険因子を減らす必要があり、現地に適用可能な下水処理方式を、消費電力とウイルス除去性能の両方を加味した上で比較評価し提言した。

Research Products

• [Int'l Joint Research] Indian Institute of Technology, Rookie(インド)
• [Int'l Joint Research] EJUST(エジプト)
• [Int'l Joint Research] IIT Roorkee(India)
• [Int'l Joint Research] EJUST(Egypt)
• [Int'l Joint Research] IIT Roorkee/Aligarh Muslim University/TERI University(India)
• [Int'l Joint Research] EJUST/NRC(Egypt)
• [Int'l Joint Research] IIT Roorkee/Aligarh Muslim University/TERI University(India)
• [Int'l Joint Research] EJUST(Egypt)
• [Int'l Joint Research]
• [Journal Article] Health impact of agricultural drainage water for farmers in the West Nile Delta (2019)
  • Author(s): Tsutomu Okubo, Akinori Iguchi, Shuya Tanaka, Shota Uchida, Tadashi Tagawa, Mamoru Oshiki, Nobuo Araki, Ahmed Tawfik, Masanobu Takahashi, Kengo Kubota, Hideki Harada, and Shigeki Uemura
  • Journal Title: International Journal of Environmental Research Volume: 13 Issue: 2 Pages: 319-325
  • DOI: 10.1007/s41742-019-00176-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Characterization of downflow hanging sponge reactors with regard to structure, process function, and microbial community compositions (2018)
  • Author(s): Masashi Hatamoto, Tsutomu Okubo, Kengo Kubota, Takashi Yamaguchi, Takashi Yamaguchi
  • Journal Title: Applied Microbiology and Biotechnology Volume: 102 Issue: 24 Pages: 10345-10352
  • DOI: 10.1007/s00253-018-9406-6
  • Peer Reviewed
• [Journal Article] Development of a novel disinfection method for agricultural reuse of sewage treated by the primary sedimentation + DHS system (2018)
  • Author(s): 景政柊蘭，長町晃宏，井口晃徳，久保田健吾，高橋優信，原田秀樹，押木守，荒木信夫，大久保努，上村繁樹，多川正
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Volume: 74 Issue: 7 Pages: III_333-III_340
  • DOI: 10.2208/jscejer.74.III_333
  • NAID: 130007627357
  • ISSN: 2185-6648
  • Peer Reviewed
• [Journal Article] Microfluidic PCR Amplification and MiSeq Amplicon Sequencing Techniques for High-Throughput Detection and Genotyping of Human Pathogenic RNA Viruses in Human Feces, Sewage, and Oysters (2018)
  • Author(s): Oshiki Mamoru、Miura Takayuki、Kazama Shinobu、Segawa Takahiro、Ishii Satoshi、Hatamoto Masashi、Yamaguchi Takashi、Kubota Kengo、Iguchi Akinori、Tagawa Tadashi、Okubo Tsutomu、Uemura Shigeki、Harada Hideki、Kobayashi Naohiro、Araki Nobuo、Sano Daisuke
  • Journal Title: Frontiers in Microbiology Volume: 9 Pages: 830-830
  • DOI: 10.3389/fmicb.2018.00830
  • Peer Reviewed
• [Journal Article] Assessment of UASB DHS technology for sewage treatment: a comparative study from a sustainability perspective (2018)
  • Author(s): Namita Maharjan, Naoki Nomoto, Tadashi Tagawa, Tsutomu Okubo, Shigeki Uemura, Nadeem Khalil, Masashi Hatamoto, Takashi Yamaguchi & Hideki Harada
  • Journal Title: Environmental Technology Volume: 1 Issue: 21 Pages: 7-7
  • DOI: 10.1080/09593330.2018.1455746
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Defining microbial community composition and seasonal variation in a sewage treatment plant in India using a down-flow hanging sponge reactor (2018)
  • Author(s): Nomoto Naoki、Hatamoto Masashi、Hirakata Yuga、Ali Muntjeer、Jayaswal Komal、Iguchi Akinori、Okubo Tsutomu、Takahashi Masanobu、Kubota Kengo、Tagawa Tadashi、Uemura Shigeki、Yamaguchi Takashi、Harada Hideki
  • Journal Title: Applied Microbiology and Biotechnology Volume: 102 Issue: 10 Pages: 4381-4392
  • DOI: 10.1007/s00253-018-8864-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] エジプトの高校生を対象とした「水」に関する環境教育プログラムの開発と実践 (2018)
  • Author(s): 大久保 努, 上村 繁樹, 井口 晃徳, 多川 正, 押木 守, 久保田 健吾, 荒木 信夫, 原田 秀樹, Ahmed Tawfik, 市村 禎二郎
  • Journal Title: 下水道協会誌 Volume: 55 Pages: 76-82
  • NAID: 130007541039
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Characterization of sludge properties for sewage treatment in a practical-scale down-flow hanging sponge reactor: oxygen consumption and removal of organic matter, ammonium, and sulfur (2018)
  • Author(s): Nomoto, N., Ali, M., Jayaswal, K., Iguchi, A., Hatamoto, M., Okubo, T., Takahashi, M., Kubota, K., Tagawa, T., Uemura, S., Yamaguchi, T., Harada, H.
  • Journal Title: Water Science and Technology Volume: 77 Issue: 3 Pages: 608-616
  • DOI: 10.2166/wst.2017.557
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Treatment Performance of Practical-Scale Down-flow Hanging Sponge Reactor Using Sixth-Generation Hard Sponge Media (2017)
  • Author(s): Okubo, T., Iguchi, A., Takahashi, M., Kubota, K., Uemura S., Harada, H
  • Journal Title: Desalination and Water Treatment Volume: 91 Pages: 48-54
  • DOI: 10.5004/dwt.2017.20815
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Application of DHS Reactor to Sewage Treatment in a Developing Country: Performance during Start-Up Period and under High Organic Load Condition (2017)
  • Author(s): 野本直樹，Vinay Kumar Tyagi，Muntjeer Ali，Komal Jayaswal，Namita Maharjan，井口晃徳，幡本将史，大久保努，高橋優信，久保田健吾，多川正，上村繁樹，山口隆司，原田秀樹
  • Journal Title: Journal of Japan Society on Water Environment Volume: 40 Issue: 1 Pages: 11-19
  • DOI: 10.2965/jswe.40.11
  • NAID: 130005286805
  • ISSN: 0916-8958, 1881-3690
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Removal of human pathogenic viruses in a down-flow hanging sponge (DHS) reactor treating municipal wastewater and health risk of the use of effluent for agricultural irrigation (2017)
  • Author(s): Kobayashi, N., Oshiki, M., Ito, T., Segawa, T., Hatamoto, M., Kato, T., Yamaguchi, T., Kubota, K., Takahashi, M., Iguchi, A., Tagawa, T., Okubo, T., Uemura, S., Harada, H., Motoyama, T., Araki, N., Sano, D.
  • Journal Title: Water Research Volume: 110 Pages: 389-398
  • DOI: 10.1016/j.watres.2016.10.054
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Development of a new non-aeration-based sewage treatment technology: Performance evaluation of a full-scale down-flow hanging sponge reactor employing third-generation sponge carriers (2016)
  • Author(s): Tsutomu Okubo, Kengo Kubota, Takashi Yamaguchi, Shigeki Uemura, Hideki Harada
  • Journal Title: Water Research Volume: 102 Pages: 138-146
  • DOI: 10.1016/j.watres.2016.06.035
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Removal of sanitarian microbial indicators after the combined process of a primary sedimentation and a down-flow hanging sponge (PS+DHS system) (2016)
  • Author(s): 長町晃宏，井口晃徳，瀬戸雄太，久保田健吾，押木守，荒木信夫，大久保努，上村繁樹，高橋優信，原田秀樹，多川正
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Volume: 72 Issue: 7 Pages: III_187-III_195
  • DOI: 10.2208/jscejer.72.III_187
  • NAID: 130005530541
  • ISSN: 2185-6648
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Recovery of partial nitrification in a down-flow hanging sponge reactor by salt shock loading (2016)
  • Author(s): Miri Matsubayashi, Hideki Harada, Tsutomu Okubo, and Shigeki Uemura
  • Journal Title: Journal of Environmental Science and Hralth, PartA: Toxic/Hazardous Substances and Environmental Engineering Volume: 51(3) Issue: 3 Pages: 262-266
  • DOI: 10.1080/10934529.2015.1094348
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Long-term performance evaluation of down-flow hanging sponge reactor regarding nitrification in a full-scale experiment in India (2016)
  • Author(s): Takashi Onodera, Tsutomu Okubo, Shigeki Uemura, Takashi Yamaguchi, Akiyoshi Ohashi, Hideki Harada
  • Journal Title: Bioresource technology Volume: 204 Pages: 177-184
  • DOI: 10.1016/j.biortech.2016.01.005
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] On-site evaluation of the performance of a full-scale down-flow hanging sponge reactor as a post-treatment of an up-flow anaerobic sludge blanket reactor for treating sewage in India (2015)
  • Author(s): Tsutomu Okubo, Takashi Onodera, Shigeki Uemura, Takashi Yamaguchi, Akiyoshi Ohashi, Hideki Harada
  • Journal Title: Bioresource technology Volume: 194 Pages: 156-164
  • DOI: 10.1016/j.biortech.2015.07.015
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] LAS含有下水がDHS法の微生物群集に与える影響 (2019)
  • Author(s): 丸山涼介，上村繁樹，大久保努，井口晃徳
  • Organizer: 第53回日本水環境学会年会
• [Presentation] DHS保持汚泥の直鎖アルキルベンゼンスルホン酸ナトリウム分解速度 (2018)
  • Author(s): 笹生慶希，山中佑花，田村駿，上村繁樹，大久保努
  • Organizer: 第55回下水道研究発表会
• [Presentation] スポンジ担体付着汚泥の初期形成期間における微生物群集構造の遷移 (2018)
  • Author(s): 加藤莉奈，大久保努，上村繁樹，竹村泰幸，久保田健吾
  • Organizer: 平成30年度全国大会第73回年次学術講演会
• [Presentation] 開発途上国における実規模DHSリアクターの有機物除去特性 (2018)
  • Author(s): 野本直樹，幡本将史，山口隆司，Vinay Kumar Tyagi，Muntzir Ali，高橋優信，久保田健吾，原田秀樹，大久保努，上村繁樹，多川正，井口晃徳，Komal Jayaswal
  • Organizer: 第21回日本水環境学会シンポジウム
• [Presentation] 途上国農業のウイルス汚染状況とリスク低減に向けた処理システム (2018)
  • Author(s): 田中周弥，丸山涼介，大久保努，上村繁樹
  • Organizer: 第45回土木学会関東支部技術研究発表会，山梨
• [Presentation] スポンジ担体付着汚泥の初期形成期間におけるBacteriaおよびEukaryaの菌叢遷移 (2018)
  • Author(s): 加藤莉奈，大久保努，上村繁樹，竹村泰幸，久保田健吾
  • Organizer: 第45回土木学会関東支部技術研究発表会，山梨
• [Presentation] 下水処理DHSリアクターの運転条件がウイルス除去性能に及ぼす影響 (2017)
  • Author(s): 井口晃徳，久保田健吾，長町晃宏，瀬戸雄太，稲葉愛美，押木守，荒木信夫，大久保努，上村繁樹，高橋優信，多川正，原田秀樹
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] 初沈+DHSシステムにおける処理水質の長期安定性に関する検証 (2017)
  • Author(s): 長町晃宏，景政柊蘭，井口晃徳，久保田健吾，押木守，荒木信夫，大久保努，上村繁樹，高橋優信，原田秀樹，多川正
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] インドアグラ市に建設された実規模スケール下水処理DHSリアクター有機物処理特性 (2017)
  • Author(s): 野本直樹，幡本将史，山口隆司，原田秀樹，井口晃徳，大久保努，高橋優信，久保田健吾，多川正，上村繁樹
  • Organizer: 初沈+DHSシステムにおける処理水質の長期安定性に関する検証
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] 下水灌漑におけるウイルスを対象とした健康リスク評価 (2017)
  • Author(s): 田中周弥，大久保努，上村繁樹，多川正，井口晃徳，押木守，荒木信夫，高橋優信，久保田健吾，原田秀樹
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] 乾燥途上国における下水の灌漑再利用のための処理システムの開発 (2017)
  • Author(s): 景政柊蘭，長町晃宏，多川正，久保田健吾，井口晃徳，押木守，荒木信夫，大久保努，上村繁樹，高橋優信，原田秀樹
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] ナノ流路デバイスを用いた下水中RNAウイルス定量およびタイピング：DHSリアクターへの適用例 (2017)
  • Author(s): 押木守，小林直央，伊藤寿宏，幡本将史，山口隆司，久保田健吾，井口晃徳，原田秀樹，荒木信夫，佐野大輔，瀬川高弘，加藤毅，多川正，大久保努，上村繁樹，本山毅宜，高橋優信
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学（熊本県・熊本市）
  • Year and Date: 2017-03-15
• [Presentation] 下水灌漑の2毛作栽培を想定したウイルス対象の健康影響評価 (2017)
  • Author(s): 田中周弥，丸山涼介，大久保努，上村繁樹
  • Organizer: 土木学会第44回関東支部技術研究発表会
  • Place of Presentation: 埼玉大学（埼玉県・さいたま市）
  • Year and Date: 2017-03-07
• [Presentation] アグラ実規模DHSプラントで形成されたDHS担体付着汚泥の性状 (2017)
  • Author(s): 池田弥生，大久保努，上村繁樹，野本直樹，山口隆司，原田秀樹
  • Organizer: 土木学会第44回関東支部技術研究発表会
  • Place of Presentation: 埼玉大学（埼玉県・さいたま市）
  • Year and Date: 2017-03-07
• [Presentation] Removal and oxygen consumption of retained sludge for organic matter, ammonium, and sulfur in a practical-scale down-flow hanging sponge sewage-treatment reactor (2017)
  • Author(s): Naoki NOMOTO， Muntjeer ALI， Komal JAYASWAL， Akinori IGUCHI，Masashi HATAMOTO，Tsutomu OKUBO，Masanobu TAKAHASHI，Kengo KUBOTA, Tadashi TAGAWA，Shigeki UEMURA，Takashi YAMAGUCHI，Hideki HARADA
  • Organizer: Annual International Conference on Sustainable Energy and Environmental Science
  • Place of Presentation: Hotel Fort Canning （Singapore, Singapore）
  • Year and Date: 2017-03-06
  • Int'l Joint Research
• [Presentation] Evaluation of disability-adjusted life year and microbial risk for farmers using agricultural drainage water for irrigation in the West Nile Delta (2017)
  • Author(s): Tsutomu Okubo, Akinori Iguchi, Shuya Tanaka, Shota Uchida, Tadashi Tagawa, Mamoru Oshiki, Nobuo Araki, Ahamed Tawfik, Masanobu Takahashi, Kengo Kubota, Hideki Harada, Shigeki Uemura
  • Organizer: 7th IWA-ASPIRE, Kuala Lumpur, Malaysia
  • Int'l Joint Research
• [Presentation] Prokaryotic diversity in a practical-scale DHS reactor treating municipal wastewater using next-generation sequencing analysis (2017)
  • Author(s): Akinori Iguchi, Mayumi HAYASHI, Toru SHIGEMATSU, Hiroyuki NAGAI, Tsutomu Okubo, Shigeki UEMURA, Takashi YAMAGUCHI, Kengo KUBOTA, Hideki HARADA
  • Organizer: 7th IWA-ASPIRE, Kuala Lumpur, Malaysia
  • Int'l Joint Research
• [Presentation] Actual conditions on agricultural drainage water for irrigation in West Nile Delta (2017)
  • Author(s): Tsutomu Okubo, Akinori Iguchi, Shuya Tanaka, Shota Uchida, Ahmed Tawfik, Shigeki Uemura
  • Organizer: The 2nd International Symposium on Convention and Management of Tropical Lakes, Siem Reap, Cambodia
• [Presentation] Removal efficiency regarding human infectious viruses through a Down-flow Hanging Sponge reactor treating municipal wastewater (2016)
  • Author(s): Iguchi A, Kubota K, Nagamachi A, Seto Y, Inaba M, Oshiki M, Araki N, Okubo T, Uemura S, Takahashi M, Tagawa T, Harada H
  • Organizer: International Society of Food and Environmental Virology
  • Place of Presentation: Hotel Sakurai（Gunma, Japan）
  • Year and Date: 2016-09-14
  • Int'l Joint Research
• [Presentation] Treatment Performance of Practical-Scale Down-flow Hanging Sponge Reactor Using Sixth-Generation Hard Sponge Media (2016)
  • Author(s): Tsutomu Okubo, Akinori Iguchi, Masanobu Takahashi, Kengo Kubota, Shigeki Uemura and Hideki Harada
  • Organizer: 13th IWA Specialized Conference on Small Water and Wastewater System
  • Place of Presentation: Aegli Zappiou（Athens, Greece）
  • Year and Date: 2016-09-14
  • Int'l Joint Research
• [Presentation] インドにおける下水処理UASBの処理性能および後段処理DHSのスタートアップ特性 (2016)
  • Author(s): 野本直樹，幡本将史，山口隆司，Vinay Kumar Tyagi，Muntzir Ali，高橋優信，久保田健吾，原田秀樹，大久保努，上村繁樹，多川正，井口晃徳，Komal Jayaswa
  • Organizer: 第19回日本水環境学会シンポジウム
  • Place of Presentation: 秋田県立大学（秋田県・秋田市）
  • Year and Date: 2016-09-13
• [Presentation] 実規模スケール下水処理DHSリアクターの有機物除去および酸素消費特性 (2016)
  • Author(s): 野本直樹，幡本将史，山口隆司，Muntzir Ali，高橋優信，久保田健吾，原田秀樹，大久保努，上村繁樹，多川正，井口晃徳，Komal Jayaswa
  • Organizer: 平成28年度土木学会全国大会第71回年次学術講演会
  • Place of Presentation: 東北大学（宮城県・仙台市）
  • Year and Date: 2016-09-07
• [Presentation] 都市下水処理を目的とした一次沈殿槽+DHSリアクターを用いた処理性能評価 (2016)
  • Author(s): 長町晃宏，景政柊欄，野村妃奈，多川正，井口晃徳，押木守，荒木信夫，大久保努，上村繁樹，久保田健吾，高橋優信，原田秀樹
  • Organizer: 平成28年度土木学会全国大会第71回年次学術講演会
  • Place of Presentation: 東北大学（宮城県・仙台市）
  • Year and Date: 2016-09-07
• [Presentation] インドアグラ市で稼働中の実規模下水処理DHSリアクターの保持汚泥中の微生物群集構造解析 (2016)
  • Author(s): 野本直樹，幡本将史，山口隆司，Muntzir Ali，高橋優信，久保田健吾，原田秀樹，大久保努，上村繁樹，多川正，井口晃徳，Komal Jayaswa
  • Organizer: 第50回日本水環境学会年会
  • Place of Presentation: アスティとくしま（徳島県徳島市）
  • Year and Date: 2016-03-17
• [Presentation] 気候条件を考慮した下水の灌漑利用に対する健康影響評価 (2016)
  • Author(s): 内田翔太，上村繁樹，大久保努，荒木信夫，押木守，多川正，井口晃徳，高橋優信，久保田健吾，原田秀樹
  • Organizer: 第50回日本水環境学会年会
  • Place of Presentation: アスティとくしま（徳島県徳島市）
  • Year and Date: 2016-03-17
• [Presentation] 一次沈殿槽とDHSリアクターを組み合わせた無曝気方式の新規下水処理技術の処理性能評価 (2016)
  • Author(s): 長町晃宏，景政柊欄，野村妃奈，多川正，井口晃徳，押木守，荒木信夫，大久保努，上村繁樹，久保田健吾，高橋優信，原田秀樹
  • Organizer: 第50回日本水環境学会年会
  • Place of Presentation: アスティとくしま（徳島県徳島市）
  • Year and Date: 2016-03-16
• [Presentation] DHS(Downflow Hanging Sponge)リアクターにおけるヒト感染性ウイルスの除去効率 (2016)
  • Author(s): 小林直央, 押木守, 伊藤寿宏, 瀬川高弘, 幡本将史, 井口 晃徳, 大久保努, 上村繁樹, 多川正, 高橋優信, 久保田健吾, 原田秀樹, 山口隆司, 本山毅宜 荒木信夫, 佐野大輔
  • Organizer: 第50回日本水環境学会年会
  • Place of Presentation: アスティとくしま（徳島県徳島市）
  • Year and Date: 2016-03-16
• [Presentation] 下水処理DHSリアクターのスタートアップ時における菌叢変化の解析 (2016)
  • Author(s): 魚返沙紀、中村亮太、大久保努、上村繁樹、松林未理、島田祐輔、久保田健吾
  • Organizer: 土木学会第43回関東支部技術研究発表会
  • Place of Presentation: 東京都市大学（東京都世田谷区）
  • Year and Date: 2016-03-15
• [Presentation] Cropwatを用いた乾燥地における下水灌漑時の感染リスク及びDALY評価 (2016)
  • Author(s): 内田翔太、大久保努、上村繁樹
  • Organizer: 土木学会第43回関東支部技術研究発表会
  • Place of Presentation: 東京都市大学（東京都世田谷区）
  • Year and Date: 2016-03-14
• [Presentation] インドアグラ市に建設された実規模スケール下水処理DHSリアクターの微生物群集構造 (2016)
  • Author(s): 野本直樹，幡本将史，山口隆司，Muntzir Ali，高橋優信，久保田健吾，原田秀樹，大久保努，上村繁樹，多川正，井口晃徳，Komal Jayaswa
  • Organizer: 平成27年度土木学会東北支部土木技術発表会
  • Place of Presentation: 岩手大学（岩手県盛岡市）
  • Year and Date: 2016-03-05
• [Presentation] Performance of full scale DHS reactor in Inidia (2015)
  • Author(s): N. Nomoto，N. Maharjan, M. Ali, K. Jayaswal, A. Iguchi, M. Hatamoto, T. Okubo, M. Takahashi, K. Kubota, T. Tagawa, S. Uemura, T. Yamaguchi, H. Harada
  • Organizer: 「ソイルエンジニアリング」シンポジウム
  • Place of Presentation: 長岡グランドホテル（新潟県長岡市）
  • Year and Date: 2015-12-17
• [Presentation] 汚水灌漑を想定したCropwatによる灌漑水量推定と健康影響評価 (2015)
  • Author(s): 内田翔太，井口晃徳，多川正，上村繁樹，大久保努
  • Organizer: 日本水環境学会 水中の健康微生物研究委員会シンポジウム
  • Place of Presentation: 発明会館（東京都港区）
  • Year and Date: 2015-12-15
• [Presentation] Quantitative evaluation of human pathogenic RNA virus in DHS (Down-flow Hanging Sponge) reactor using microfluidic quantitative PCR (2015)
  • Author(s): N. Kobayashi，M. Oshiki, N. Araki, T. Ito, D. Sano, T. Segawa, M. Hatamoto, T. Yamaguchi, A. Iguchi, S. Uemura, T. Okubo, T. Tagawa, K. Kubota, M. Takahashi, H. Harada
  • Organizer: 日本水環境学会 水中の健康微生物研究委員会シンポジウム
  • Place of Presentation: 発明会館（東京都港区）
  • Year and Date: 2015-12-15
• [Presentation] DHS-沈殿槽処理水からのリン除去プロセスの検討 (2015)
  • Author(s): 安田允樹、幡本将史、山口隆司、多川正、大久保努、上村繁樹
  • Organizer: 第33回土木学会関東支部新潟会研究調査発表会
  • Place of Presentation: 朱鷺メッセ（新潟県新潟市）
  • Year and Date: 2015-11-13
• [Remarks] Researchmap
  • URL: https://researchmap.jp/read0150357
• [Remarks] Researchgate
  • URL: https://www.researchgate.net/profile/Tsutomu_Okubo
• [Remarks] Researchmap
  • URL: https://researchmap.jp/read0150357/
• [Remarks] Researchmap
  • URL: http://researchmap.jp/read0150357
• [Remarks] researchmap
  • URL: http://researchmap.jp/read0150357/