Outline

RECWET booklet
(Jul 2025 edition)

Since the establishment in 2000, we have been conducting research and development of cutting-edge water environment control technologies using diverse approaches based on the integration and collaboration of basic sciences such as microbial ecology and practical studies such as water treatment engineering in order to meet the social challenges and expectations of realizing a sustainable water environment.
In 2019, the center was reorganized into three divisions. We are currently promoting research and education in collaboration with water-related researchers in a wider range of fields within the university, including Chemistry and biotechnology, Civil engineering and Material engineering. Additionally, Laboratory of International Wastewater-based Epidemiology, which was established in March 2024, is working to implement technologies developed through industry-academia collaboration in society. Furthermore, in October 2024, Shinshu University/The University of Tokyo Collaboration Branch Office was established, aiming to integrate advanced research in the water field by collaborating with Shinshu University.
Moreover, our activities in the water fields, including international cooperation, human resource development, and hosting international conferences, mainly conducted in Asia, are gaining international recognition. We will continue to promote research and education activities with the aim of becoming an international research hub for water environmental engineering. We would appreciate your continued support for the activities of the center.

News & TopicsArchive＞

2026/03/15
[Media] Special Roundtable Discussion with Dr. Omi (Project Prof. Kitajima)

As a special feature of the Journal of sewerage, monthly, Project Prof. Masaaki Kitajima, Chairman Shigeru Omi of the Japan Anti-Tuberculosis Association, and Yoshihiko Yato, Standing Special Advisor to NJS Co., Ltd. held a special roundtable discussion on wastewater surveillance. The content of this discussion was published in the April issue of the Journal of sewerage, monthly, and a photograph of the three was featured on the upper half of the cover.

● [Roundtable discussion] 尾身茂, 北島正章, 谷戸善彦 (2026) 特別鼎談：下水サーベイランスの大いなる可能性を追求する, 月刊下水道4月号, p.1-9.
2026/03/12
[Lecture] Invited lectures at WATER KOREA 2026 & WHO National Workshop on WES (Project Prof. Kitajima)

In March, Project Prof. Masaaki Kitajima gives invited lectures at two events: South Korea's largest international water industry exhibition and the WHO Philippines' national workshop on wastewater and environmental surveillance.

● Masaaki Kitajima (2026) Overview of Wastewater Surveillance in Japan, Korea International Water Industry Expo & Conference (WATER KOREA 2026), 19 March, Busan, South Korea.
● Masaaki Kitajima (2026) Wastewater and Environmental Surveillance in Japan: Lessons for Public Health Surveillance, WHO National Workshop on Wastewater and Environmental Surveillance (WES), 10–12 March, Manila, Philippines.
2026/03/11
[Presentation] The 60th Annual Meeting of JSWE (Dr. Uehara and many others)

The 60th Annual Meeting of the Japan Society on Water Environment was held on 9-11th March at Tama campus, Chuo University.
Numerous presentations were given, including an oral presentation by RECWET project researcher Yutaro Uehara, as well as presentations by students and researchers whose supervision/responsibility was based on RECWET members. In addition, Project Prof. Masaaki Kitajima and Hokkaido University received JSWE-KURITA Best Presentation Award for their oral and poster presentations of the joint research.　 Program(PDF)

【Oral Presentations】

March 9
● 伊藤万由，春日郁朗ほか (2026) 病院排水中のカルバペネム耐性細菌の薬剤耐性機構の解明と都市下水への影響評価.
● Vu Thi My Hanh，春日郁朗ほか (2026) Centrifugation-Free Concentration of Bacteria and Viruses Using Magnetic Nanoparticles for Wastewater Surveillance of Antimicrobial Resistance Genes and Pathogenic Viruses.
● Lanuyanger Tiamenla，春日郁朗ほか (2026) Prevalence of class 1 integron as a comprehensive indicator of antimicrobial resistance in public water environment in Saitama Prefecture.
● Chenrun Jiang，春日郁朗ほか (2026) Exploration of Microorganisms Involved in 2-Methylisoborneol Degradation in Biological Activated Carbon for Drinking Water Treatment.
● 島津航太郎，橋本崇史ほか (2026) 低圧ろ過膜によるウイルス除去機構に及ぼすブラウン運動と表面相互作用の影響.
● 小松周生，中村太貴，北島正章，羽深昭，木村克輝 (2026) MBRの軽微な膜ファウリング蓄積に伴う大幅なウイルス除去率の向上 [JSWE-KURITA Best Presentation Award]

March 10
● 松崎文香，栗栖太ほか (2026) 比国ラグナ湖における新興汚染物質のサスペクト及びターゲットスクリーニングによる初期リスク評価.
● 上原悠太郎，栗栖太ほか (2026) 大容量直接注入－ノンターゲット LC/MS 分析による水道水中緑膿菌増殖基質の探索.
● 鈴木美智，小熊久美子ほか (2026) 塩化クリプトンエキシマランプを用いたウイルスの不活化と光回復.
● 大河内隆暁，春日郁朗ほか (2026) 病院内給水末端で再増殖する非結核性抗酸菌及びレジオネラの種同定と病原性の推定.

March 11
● 白川大登，片山浩之ほか (2026) 限外濾過膜表面でのウイルス蓄積及び脱着現象がウイルス除去能に及ぼす影響.

【Poster Presentations】
● Burzio Cecilia，橋本崇史ほか (2026) Water Quality Monitoring and Variability Assessment of Drinking Water Source Using a Continuous EEM Measurement with Deep Learning Approach.
● Singappuli Arachchige Nilupuli Thiloththama Indrashan，小熊久美子ほか (2026) Comparison of inactivation kinetics among different Escherichia coli strains using UV LEDs.

【Poster Presentations by undergraduates】
● 松本恭太郎，北島正章ほか (2026) 麻疹の下水疫学：東南アジアの流行地域を対象にした適用可能性の実証.
● 波多野雄希, 片山浩之ほか (2026) 修飾酸化グラフェン複合薄膜による水中からの PFAS 除去の検討.
● 吉田琴美，五味良太ほか (2026) 都市下水からの Bordetella 属細菌検出に基づく百日咳発生動向と薬剤耐性傾向の把握.

2026/03/06
[Event] Special Seminar Series #71 (Prof. Thomas Ternes/Lecture）

On the afternoon of Friday, March 6th, Prof. Thomas Ternes, the Head of Research from Federal Institute of Hydrology, Germany (BfG), gave a special lecture about analysis to identify toxicants. A lively question and answer session continued throughout the session.
He has extensive research achievements in the fate, decomposition, and concentration of trace pollutants in the environment. Seminar details

2026/02/27
[Event] Special Seminar Series #70 (Dr. Justin B. Greer/Lecture）

On the afternoon of Friday, February 27th, Dr. Justin B. Greer from US Geological Survey (USGS), who is a computational and experimental biologist specializing in environmental chemistry, toxicology, and risk assessment, gave a special lecture titled "Tire-derived Contaminants and Aquatic Animal Health".
Even participants who are not familiar with the field enjoyed the lecture and asked a variety of questions. Seminar details