DR. M.N. MOHOMED SHAYAN
Senior Lecturer
PhD (Hokkaido) M. Eng.(Hokkaido) B.Sc. Eng (Hons) (University of Ruhuna)
Contact info
+94 77 830 1679
shayan.n@cee.ruh.ac.lk
Room CE 305
Specialization
Environmental Engineering
Educational Qulifications
- PhD in in Environmental Engineering from Hokkaido University, Japan
- M. Eng. in Environmental Engineering from Hokkaido University, Japan
- B.Sc. Civil & Environmental Engineering , Faculty of Engineering, University of Ruhuna, Sri Lanka
Professional Experience
- Representative (DCEE) of the Public Relations relations committee of Faculty of Engineering, University of Ruhuna.
- Post-doctoral Researcher in Hokkaido University, Japan in the Laboratory of Aquatic Environmental Protection Engineering (October 2025 – March 2026).
- Visiting Lecturer in Oluvil University in Sri Lanka (October 2025 – March 2026).
- Technical trainee, AIST (Sanshoken) Hokkaido (February 2023 – August 2025).
- Teaching Assistant,Hokkaido University (April 2023 – March 2025).
- Project Coordinator/Civil Engineer in Summit Engineering Consultants (pvt) Ltd (2020 Jan – 2020 August).
- Visiting Lecturer in SLIATE, Labuduwa (June 2019 – 2020 August)
- Teaching Assistant, Faculty of Engineering, University of Ruhuna (February – December 2019)
Memberships
- Associate Member of the Institute of Engineers, Sri Lanka (AMIESL)
- Associate Engineer – Engineering Council Sri Lanka (ECSL)
- Member of Japan Society of Water Environment (JSWE)
- Member of Japan Society of Sewerage Agency (JSWA)
- Member of Japanese Society of Microbial Ecology (JSME)
- Member of Sri Lanka Society for Microbiology (SSM)
Research Interests
- Community managed water supply shcemes
- Water quality of urban rivers
- Recalimed water, Bacterial community
- Antibiotic resistant genes and bacteria, biosensors, chlorination and organic matters
Publications
- Refereed international journal papers and book chapters
- Shayan M.N.M., Tushara Chaminda G.G., Ellawala K.C., Gunawardena W.B. Evaluation of Water Quality of Community Managed Water Supply Schemes (CMWSS) in Galle District. In: Kumar M., Munoz-Arriola F., Furumai H., Chaminda T. (eds) Resilience, Response, and Risk in Water Systems. Springer Transactions in Civil and Environmental Engineering. Springer, Singapore, pp 139-150, 2020. https://doi.org/10.1007/978-981-15-4668-6_8.
- Mohomed N. M. Shayan, Takeshiro Onodera, Reiko Hirano, Kyohei Kuroda, Takashi Narihiro, Yuki Nakaya, Hisashi Satoh, Effects of snowmelt runoff on bacterial communities and antimicrobial resistance gene concentrations in an urban river in a cold climate region. Environmental Science and Pollution Research. 32, 7641–7650. 2025, https://doi.org/10.1007/s11356-025-36168-y.
- Mohomed N. M. Shayan, Yuna Tanaka, Reiko Hirano, Yuki Nakaya, Hisashi Satoh, A simple and rapid method for detecting fecal pollution in urban rivers by measuring the intrinsic β-D-glucuronidase activity of Escherichia coli, Water Research. 246:120689, 2023, doi: 10.1016/j.watres.2023.120689.
- Mohomed Shayan, Shou Taniuchi, Yuki Nakaya, Hisashi Satoh, Release levels, resistant formation potential, and ecological risk of macrolide antibiotics in urban rivers, 下水道研究発表会講演集, 60, 1246-1248, 2023, 東京: 日本下水道協会.
- Wasala M.K.R.T. Bandara, Mohomed Shayan, R.M.W.C. Thennakoon, P.A.A. Kumudumali, Hisashi Satoh, Introduction of Plug-flow Anaerobic Sludge Blanket (PASB) reactor for wastewater treatment, Desalination and Water Treatment, Volume 319, 2024,100439, https://doi.org/10.1016/j.dwt.2024.100439.
- 本平 航大, 片岡 恋惟, BISWAS Biplob Kanti, MOHOMED Shayan, 留学生による市民公開講座の実践と特性, 日本科学教育学会年会論文集. 回次:48, 2024, https://doi.org/10.14935/jssep.48.0_731.
- Wasala M.K.R.T. Bandara, B.M.L.A. Basnayake, N.M. Shayan, I.M.V.U. Ilangakoon, N.A.S. Nimanthika, Hisashi Satoh, Feasibility study for the treatment of palm oil mill effluent (POME) using electrocoagulation method, Desalination and Water Treatment. Desalination and Water Treatment, 2025,101054, https://doi.org/10.1016/j.dwt.2025.101054.
- Shayan, M. N. M., Tanaka, Y., Shinji, A., Nakayama, T., Hirano, R., Kuroda, K., Narihiro, T., Nakaya, Y., and Satoh, H., 2026. Resuscitation , regrowth , and release of bacteria in biofilm in a river receiving chlorinated reclaimed water. Water Research X, 100524. https://doi.org/10.1016/j.wroa.2026.100524.
- Refereed international conferences
- Mohomed N. M. Shayan, Hisashi Satoh, Factors Affecting for the Temporal Variation of Escherichia Coli in Urban Rivers, Water and Environmental Technology Conference (WET 2021), August10-11,2021, Tokyo, Japan, ONLINE (Oral presentation).
- Mohomed N. M. Shayan, Sho Taniuchi, Hisashi Satoh, Enumeration of Escherichia coli concentration of river water and wastewater samples by measuring β-D-glucuronidase (GUS) activities via Microplate Reader, International Conference on Water Resource and Environment (WRE 2021), November 1-4, 2021, China, ONLINE (Oral presentation).
- Mohomed N. M. Shayan, Takashiro Onodera, Hisashi Satoh, Study on regrowth of Escherichia coli present in chlorinated wastewater effluent in urban rivers, International Conference on the challenges in Environmental Science and Engineering (CESE 2021), November 6-7, 2021, Melbourne, Australia, ONLINE (Oral presentation).
- Mohomed N. M. Shayan, Takeshiro Onodera, Ryutaa Miyajima, Yuya Akazawa, Hisashi Satoh, Prevalence of Antibiotic Resistant Genes (ARG) in Urban Rivers, International conference on water convention of the Singapore International Water Week (SIWW, 2022), April 17-21, 2022, Singapore, ONLINE (Oral presentation).
- Mohomed N. M. Shayan, Hisashi Satoh, Seasonal Synchrony of Evenness of Planktonic Bacterial Community in Urban Rivers, Water, and Environmental Technology Conference (WET 2021), July 9-10,2022, Tokyo, Japan, ONLINE (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Release levels, resistant formation potential and ecological risk of Macrolide antibiotic in urban rivers in Japan, The 60th Japan annual technical conference on sewerage (JACTS), August 2-4, 2023, Sapporo, Japan (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Bacterial community structures and antibiotic resistance genes in chlorinated reclaimed water discharged from municipal wastewater treatment plants, JSME conference, November 27-30, 2023, Hamamatsu, Japan (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Bacterial community structures and their regrowth in the urban rivers to which chlorinated reclaimed water is discharged from municipal wastewater treatment plants, IWA conference, Murdoch University, December 3-8, 2023, Perth, Australia (Oral presentation).
- Mohomed N. M. Shayan, T. Onodera, Y. Nakaya, H. Satoh, Investigating the Influence of Treated Wastewater on Antibiotic Resistance Gene Profiles in Urban Rivers: A High-throughput Sequencing Approach, Water and Environmental Technology Conference (WET 2024), July 19-21, 2024, Okayama, Japan (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Metagenomic insights into chlorination effects on microbial antibiotic resistance in tertiary treated water during rainy and sunny day, The 61st Japan annual technical conference on sewerage (JACTS), July 29-August 1, 2024, Tokyo, Japan (Oral presentation).
- Mohomed N. M. Shayan, T. Onodera, Y. Nakaya, H. Satoh, Investigating the Influence of Treated Wastewater on Antibiotic Resistance Gene Profiles in Urban Rivers: A High-throughput Sequencing Approach, Water and Environmental Technology Conference (WET 2024), July 19-21, 2024, Okayama, Japan (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Metagenomic insights into chlorination effects on microbial antibiotic resistance in tertiary treated water during rainy and sunny day, The 61st Japan annual technical conference on sewerage (JACTS), July 29-August 1, 2024, Tokyo, Japan (Oral presentation).
- Mohomed N. M. Shayan, Yuki Nakaya, Hisashi Satoh, Bacterial Resilience in Periphyton: Investigating the Resuscitation and Growth of Viable and Culturable Escherichia coli in a River Receiving Chlorinated Reclaimed Water, Water and Environmental Technology Conference (WET 2025), July 4-6, 2025, Nagaoka, Japan (Oral presentation).
Consultancies and Projects
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