News & Topics

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2023/10/30
[Update] New web page on research exchange activities with Wenzhou University A new web page has been created which summarizes research exchange activities with College of Life and Environmental Science, Wenzhou University, China in reverse chronological order. College of Life and Environmental Science and RECWET signed a Memorandum of Understanding in 2020.
2023/10/25
[Lecture] Invited lecture at IWA-ASPIRE Conference & Exhibition (Prof. Kurisu) Prof. Futoshi Kurisu (Water System Management Division) gave an invited lecture at 9th IWA-ASPIRE Conference & Exhibition 2023 (Oct 22-26, Kaohsiung, Taiwan). The conference expects 2,000 participants all over the world.
2023/10/23
[Conference] Oral presentation by Dr. Tippawan RECWET Project Researcher Dr. Tippawan SINGHOPON gave an oral presentation at 9th IWA-ASPIRE Conference & Exhibition 2023 (Oct 22-26, Kaohsiung, Taiwan).
Also, there are presentations by postgraduate students (RECWET supervisors: Profs. Takizawa, Katayama & Hashimoto, Kurisu).
2023/10/13
[Event] FY2023 1st RECWET Steering Committee The RECWET Steering Committee meeting was held. Starting this year, Tetsuya Ishida, vice dean of School of Engineering, has been appointed as a committee member, replacing former vice dean and current dean Yasuhiro Kato. In the final year of the 4th term (FY2019-2023), we sought opinions on the policy for renewing RECWET's establishment period. Additionally, this year's activities and budget execution were deliberated.
2023/10/10
RECWET Annual report has been issued The report which summarizes the activities and research results for FY2021-2022 has been issued.
- PDF First half(3.9MB)　Second half(3.8MB) (Japanese only)
- Past reports (Mostly Japanese)
2023/10/02
[HR] Arrival of a post-doctoral researcher (Dr. Cecilia Burzio) Dr. Cecilia BURZIO has been appointed as a RECWET Project Researcher as of October 1, 2023.
Research topic: Development of water quality accident detection and countermeasure methods through continuous monitoring and comprehensive analysis and optimization of watershed monitoring
2023/09/28
[Publications] Recent papers by Prof. Kazuaki Syutsubo ● A paper on the correlations between the abundance of representative pathogenic bacteria in domestic wastewater and water quality, and on the removal properties at wastewater treatment facilities (Aoki, Syutsubo et al.)
● A paper on analysis methods using internal standard to evaluate functional and phylogenetic marker genes (Koike, Syutsubo, Matsuura et al.)
2023/09/14
[Conference] Poster presentations by Dr. Shinfuku Project Researcher Dr. Yuta Shinfuku gave poster presentations at IWA MEWE23 conference (Sep 10-14, Brisbane) and 2023 Annual Meeting of Society of Environmental Science, Japan (Sep 7, Kobe University).
2023/09/01
[Publication] Recent papers by Prof. Hiroyuki Katayama ● A paper on enveloped and non-enveloped viruses to ultraviolet light-emitting diode irradiation (Canh, Katayama et al.)
● A paper on inactivation of virus under conditions relevant to drinking water treatment (Canh, Tippawan, Katayama et al.)
2023/08/31
[Personnel] End of acceptance of the visiting researchers (Profs. Takizawa & Hashimoto, Kurisu) The six-month research acceptance of two visiting researchers has ended. RECWET conducted joint research on filtration membrane technology with Assoc. Prof. Alberto Tiraferri, Politecnico di Torino (Host Profs. Satoshi Takizawa and Takashi Hashimoto). Also we condected research exchanges on basin water system/water environment with Prof. Chia-Ling Chang, Feng Chia University, Taiwan (Host Prof. Futoshi Kurisu).
2023/08/30
[Activity] Sewage Surveillance aiming for nationwide expansion (Prof. Katayama) On August 25, Sapporo City, Komatsu City, Yabu City and researchers, which are investigating the new coronavirus in sewage, established the National Sewage Surveillance Promotion Council, with Prof. Hiroyuki Katayama (Water Quality Control Technologies and Materials Development Division) appointed as its Chair. This news was reported with movies/photos on NHK Hokkaido and some newspapers.
2023/08/25
[Event] Co-chair of the Forum on Urban Water Service in Asia (Prof. Takizawa) Prof. Satoshi Takizawa (International Water Environment Division) co-chaired "The 5th Executive Forum for Enhancing Sustainability of Urban Water Service in Asian Region" with H.E. Ek Sonn Chan, Minister Attached to the Prime Minister of Kingdom of Cambodia. Sponsored by JICA and City of Yokohama, the event was held at the Yokohama Symposia from August 22nd to 25th, with participants including executives from water utilities and water administration organizations from 10 Asian countries.
2023/08/24
[Publicati on] Joint research result of Two major project Profs. Kato & Katayama) A paper on 2D nanoporous membranes formed from ionic smectic LC molecules for water treatment was published in Journal of Materials Chemistry A. This work is the results of joint research between KAKEN Aquatic Functional Materials (Area Organizer: Prof. Takashi Kato) and a research project of JST-CREST Fundamental technologies for COVID-19 (Research Director: Prof. Hiroyuki Katayama).
2023/08/23
Committee at international conferences held in Dec 2023 (Profs. Takizawa, Kurisu)

● Prof. Satoshi Takizawa：Program Committee (Bangkok, Dec 2023)
IWA Sustainable Natural and Engineered Water Systems Management (SWSM 2023)

● Prof. Futoshi Kurisu：Technical Committee (IIT Bhubaneswar India, Dec 2023)
International Conference on Pollution Control for Clean Environmen (ICPCCE-2023)

2023/08/09
[Event] Membrane filtration technology symposium (RECWET) RECWET held a hybrid symposium "Cutting-edge membrane filtration technology and its contribution to solving global water problems" on Aug 9 and posted the report.
2023/08/03
[Event] Chair of Annual Technical Conference on Sewerage (Prof. Takizawa) Prof. Satoshi Takizawa was in charge of holding the 60th Japan Annual Technical Conference on Sewerage (Aug 1-3, Sapporo) as the Chair of the Planning and Steering Committee. He also acted as the coordinator for a panel discussion (Aug 1).
2023/07/31
[Award] Best Paper Award (Category C) from JLCS (Prof. Kato) Prof. Takashi Kato et al. received the 2023 Best Paper Award (Category C) from the Japanese Liquid Crystal Society for their review article "Advanced Functional Liquid Crystals". He was invited as Advanced Materials Hall of Fame by Advanced Matrials (Wiley-VCH) and the paper was also selected for Inside Front Cover.
2023/07/25
[SEAWE-13] Deadline Extended: Call for Papers for a Special Issue in Water

The SEAWE-13 organizers has launched a Special Issue "Sustainable Water Supply, Sanitation and Wastewater Systems" in Water* in collaboration with the symposium. Symposium Co-Chairs Prof. Satoshi Takizawa (RECWET Director) and Prof. Thammarat Koottatep (AIT, Thailand), and Prof. Kazuaki Syutsubo (NIES) will serve as Guest Editors and welcome submissions of full papers as follows;

- Both participants and non-participants of the SEAWE-13 symposium can submit papers.
- Submission deadline is June 30, 2023. extended to Dec 15, 2023.
- Inquiries: takizawa [at] env.t.u-tokyo.ac.jp (Prof. Satoshi Takizawa)

* Water is a peer-reviewed open-access online journal, and papers accepted after peer-review are published online in about a week.

2023/07/20
[Publication] A paper by a JICA program student (Prof.Takizawa et al.) A paper by graduate student Mitria Widianingtias, Dr. Shinobu Kazama, Dr. Benyapa Sawangjang and Prof. Satoshi Takizawa (JICA Water Engineering and Utility Management for Future Leaders) has been published. It belongs to the Special Issue in collaboration with SEAWE-13.
2023/07/13
[Event] Special Seminar Series #52 (Prof. Faisal Hai/Lecture) Prof. Faisal Hai of University of Wollongong, Australia gave a special lecture on 13 July. It was held jointly with Environmental Science Center and many people participated.
2023/07/11
[Event] Special Seminar Series #51 (Dr. Manuel Herrera/Lecture) Senior Research Associate, Dr. Manuel Herrera of University of Cambridge gave a special lecture and answered many questions. Using data analysis and network science, he conducts research not only in water systems, but also in infrastructure systems such as energy, telecommunications, and transport.
2023/07/10
[Media] An interview as a next-generation environmental engineer (Dr. Hashimoto) A 10-page interview article with Assoc. Prof. Takashi Hashimoto (Water Quality Control Technologies and Materials Development Division) was published in the series "Next-Generation Hygiene and Environmental Engineers" in Monthly Core No. 404. The Core is a comprehensive magazine on plumbing, sanitation, and environmental facilities.
2023/07/02
[Lecture] Invited lecture at Western Sydney University (Prof. Katayama) Prof. Hiroyuki Katayama (Water Quality Control Technologies and Materials Development Division) gave an invited lecture titled "Molecular Detection of Viruses for Water Safety" at Western Sydney University.
2023/06/29
[Publication] Article on wastewater treatment by HD (Dr. Tippawan) RECWET Project Researcher Dr. Tippawan Singhopon et al. have published an article in Sustainability.
Title: "Application of Hydrogen-Based Denitrification: Simultaneous Removal of Nitrate and Reactive Black 5 Dye from Textile Wastewater Containing Organic Matter"
2023/06/22
[Event] YouTube video of Tokyo College Webinar by Dr. Tiraferri

Tokyo College held an online lecture "Increasing Freshwater Supply through Desalination Driven by Renewable Energy" by Associate Professor Alberto Tiraferri, Politecnico di Torino on June 13th. Youtube video is available at Tokyo College Youtube Channel.

Tokyo College Professor Tiraferri, who has come to UTokyo under Tokyo College's "Inviting distinguished researchers" program, specializes in water quality, management, and availability, and around the water-energy nexus. He will conduct research activities at RECWET from March to August 2023.

2023/06/20
[Publication] A paper by a JICA program student (Prof.Takizawa et al.) A paper by graduate student Shekhar Khanal, Dr. Shinobu Kazama, Dr. Benyapa Sawangjang and Prof. Satoshi Takizawa (JICA Water Engineering and Utility Management for Future Leaders) has been published. It belongs to the Special Issue in collaboration with SEAWE-13.
2023/06/01
[Event] Special Seminar Series #50 (Prof. Chia-Ling Chang/Lecture) Prof. Chia-Ling (Charlene) Chang of Feng Chia University, Taiwan gave a special lecture. She specializes in water environment planning and management. RECWET has accepted her as a visiting researcher (acceptance period: February to August 2023).
2023/05/25
[Event] Special Seminar Series #49 (Dr. Jinxia Liu/Lecture) Assoc. Prof. Jinxia Liu of McGill University, Canada, who specializes in research on PFAS, gave a special lecture. She talked about PFAS (a general term for organic fluorine compounds), whose usage is becoming regulated worldwide, including examples from Canada and the United States.
2023/05/17
[Event] Wenzhou University & UTokyo Exchange Symposium (Prof.Katayama)

Prof. Hiroyuki Katayama (Water Quality Control Technologies and Materials Development Division) attended an exchange symposium held at Wenzhou University. RECWET and The College of Life and Environmental Sciences, Wenzhou University, China have signed a Memorandum of Understanding for research collaboration.

2023/05/17
[Lecture] Invited lecture at an international conference (Prof. Syutsubo) Prof. Kazuaki Syutsubo (Interntional Water Environment Division) participated in "the 22nd National Environmental Conference and 12th International Conference on Environmental Engineering, Science and Management" (Pattaya Thailand, May 17-18), hosted by the Environmental Engineering Association of Thailand. He gave an invited lecture at the special lecture session, titled "Decentralized Wastewater Treatment Technology and case study in Japan".
2023/05/01
[Publications]　Paper on reclaimed water (Prof. Katayama) A paper on reclaimed water by Midori Yasui (D3, at that time), Prof. Hiroyuki Katayama and others has been published by Water Science & Technology.
2023/05/01
[Publications]　Recent papers by Prof. Syutsubo ● Paper about sulfide removal published in Water Science & Technology (Onodera, Syutsubo et al.)
● Paper about TMAH degradation published in Applied Microbiology and Biotechnology (Iguchi, Syutsubo et al.)
● Paper about quantification of bacterial pathogens published in ACS ES&T Water (Matsuura, Syutsubo et al.)
2023/04/20
Executive committee at upcoming international conferences (Profs. Takizawa, Kato, Katayama, Kurisu)

● Prof. Hiroyuki Katayama：Program Committee, IWA 21st Symposium on Health-related Water Microbiology (WaterMicro23), Darwin, Jun 2023

● Prof. Takashi Kato：Executive Committee, Grand Meeting MRM2023/IUMRS-ICA2023, Kyoto, Oct 2023

● Prof. Satoshi Takizawa：Chairs and Scientific Programme Committee, 8th IWA Specialist Conference on Natural Organic Matter (NOM8), South Africa, Dec 2023

● Prof. Futoshi Kurisu：Organizing Committee and Programme Committee, 13th IWA Micropol and Ecohazard Conference, Taipei, Jun 2024

2023/04/10
[Publication] Recent papers by Prof. Kurisu ● Evaluated the removal status at the treatment plant, the concentration in the treated water, and the ecological risk of emerging contaminants discharged into rivers (Pandey, Kurisu et al.)
● Joint research with Thailand on changes in organic matter during coagulation/sedimentation and chlorine disinfection of water treatment (Prasert, Kurisu et al.)
● Detected unregulated pollutants in the Kiso Three Rivers using target screening analysis (Ogawa, Kurisu et al. Joint research with Gifu University etc, written in Japanese)
● Investigated regrowth of microorganisms and antimicrobial resistance in drinking water (Nguyen, Kurisu, Kasuga et al. Joint research with Dr. Kasuga, RECWET collaborative member)
2023/03/31
[Event] Special Seminar Series #48 (Prof. Morteza Abbaszadegan/Lecture) Prof. Morteza Abbaszadegan of Arizona State University, who is famous for health-related microbiology including virus control, gave a special lecture.
He is a Professor of "School of Sustainable Engineering and the Built Environment", a Senior Global Futures Scientist of Julie Ann Wrigley Global Futures Laboratory, and the Director of NSF Water and Environmental Technology Center.
2023/03/10
[Lecture] Invited lecture at SPERC, Iwate University (Prof. Kurisu) Prof. Futoshi Kurisu (Water System Management Division) gave an invited lecture on March 10 at the Soft-Path Science and Engineering Research Center, Iwater University.
Title: "Risk-based screening for unregulated organic pollutants in water environments" (in Japanese)
2023/03/10
[Lecture] Invited lecture at ISBEC 2023 (Dr. Tiraferri) Tokyo College Professor Alberto Tiraferri, who conducts research at RECWET, gave a keynote lecture at the international symposium ISBEC 2023 held at the University of Tsukuba on March 10. (see Program page)
Title: Water Recovery in Water-intensive Energy Production Processes: Two Case Studies
2023/03/10
[Publication]　Special issue on JWET (Dr. Hashimoto） Assoc. Prof. Takashi Hashimoto (Water Quality Control Technologies and Materials Development Division) summarized the application and challenges of machine learning in water supply, sewerage, water environment, and membrane filtration in the special issue "Utilization of Machine Learning in the Field of Water Environment" over 7 pages.
2023/03/07
[Lecture] Invited lecture at the 16th JUCST symposium (Prof. Kato) The 16th Japan Union of Chemical Science and Technology Symposium "Expectations for Chemistry in the Corona Age" was held online on the afternoon of March 7th. Prof. Takashi Kato (Water Quality Control Technologies and Materials Development Division) introduced cutting-edge research "Nanostructure membranes that remove viruses with high efficiency" and discussed the role of chemistry with other speakers. (in Japanese)
2023/03/03
[Personnel] Acceptance of Dr. Alberto Tiraferri RECWET has accepted Associate Professor Alberto Tiraferri of Politecnico di Torino (Tokyo College Professor) for the research activity. His visit to Japan is part of the Tokyo College's "Inviting distinguished researchers" program. His stay will be 1 March to 31 August.
Profile (Tokyo College)　Profile (affiliation)
2023/02/24
[Event] Special Seminar Series #47 (Prof. Xinmin Zhan/Lecture) Prof. Xinmin Zhan, Head of Discipline of Civil Engineering at University of Galway, Ireland, gave a special lecture in the morning of Feb 24. He has made many achievements in research on biological treatment of wastewater and waste. After the 1 hour lecture, a lively question-and-answer session was held. Details
2023/02/22
[Event] FY2022 2nd RECWET Steering Committee The RECWET Steering Committee meeting was held. We reported on the FY2022 budget execution, the activities of the center and each division, etc., and received deliberation and approval. The Committee expressed their expectations for our future activities.
2023/02/17
[Personnel] Acceptance of Prof. Chang as a visiting researcher RECWET has accepted Prof. Chia-Ling Chang of Feng Chia University, Taiwan as a visiting researcher. Her specialty is water environment management, and she is going to stay from mid-February to mid-August.
2023/02/07
[Publication] Paper about UV light-emitting diodes for water treatment (Prof. Takizawa) An article written by graduate student Jack Jia Xin Song, Dr. Kumiko Oguma and Prof. Satoshi Takizawa on UV-LED inactivation of non-tuberculous mycobacteria (NTM) has been published in Scientific Reports.
2022/12/15
[Award] Presentation Award at SEAWE-13 (Dr. Tippawan) A RECWET project researcher Dr. Tippawan Shinghopon received "Award for Asian Young Professional on Water Research" at the 13th International Symposium on Southeast Asian Water Environment (SEAWE-13).
2022/12/14
[Lecture] Plenary presentation at the international conference PPC17 (Prof. Kato) Prof. Takashi Kato (Water Quality Control Technologies and Materials Development Division) gave a plenary lecture at the 17th Pacific Polymer Conference (PPC17) held in Brisbane, Australia from 11th to 14th December.
Title: "Liquid-Crystalline Polymers: Molecular Technology for New Functionalization of Ordered Soft Materials"
2022/12/13
[SEAWE-13] The international symposium started today! Today, SEAWE-13 opened at Asian Institute of Technology. From UTokyo, a total of 17 people, including RECWET members, are participating.
2022/12/10
[Publication] Detergent decomposition in sewage pipe purification (Prof. Kurisu etc.) Prof. Futoshi Kurisu and Dr. Yuta Shinfuku (Water System Management Division) participated in Prof. Hiroyasu Satoh (Graduate School of Frontier Sciences)'s resaerch and an original article has been published by the Journal of Water and Environment Technology. This is about an evaluation of the effects of detergents on the purification function in sewage pipes, focusing on their components.
2022/12/01
[Publication] A paper from Bioresource Technology Reports (Prof. Syutsubo) Prof. Kazuaki Syutsubo (International Water Environment Division) has published a paper on the development of a gas stripping reactor that can avoid sulfide inhibition in the methane fermentation treatment of sulfate-containing wastewater in collaboration with the National Institute for Environmental Studies, Japan.
2022/11/29
[Lecture] Keynote at JSCE Environmental Engineering Research Forum (Dr. Hashimoto) Assoc. Prof. Takashi Hashimoto (Water Quality Control Technologies and Materials Development Division) gave a keynote lecture "Healthiness of Membrane Filtration Water Purification System and its Monitoring" (in Japanese) at the peer-reviewed paper "Membrane Treatment" session.

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