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Establishment of the novel approach for the evaluation and management of virus removal efficiency in MBR
To obtain a sustainable securement of water resources in an urban area, the reuse of reclaimed municipal wastewater as an alternative water resource is recommended. In the wastewater reclamation system, the wastewater has to be treated effectively by reliable wastewater treatment technologies. Membrane separation technology, such as a Membrane Bioreactor (MBR) has been recognized as a promising wastewater treatment technology, because suspended solids, including pathogenic bacteria in wastewater can be completely removed by the membrane separation process and, MBR can give quite high quality of treated wastewater compared to conventional wastewater treatment processes. However, the complete removal of enteric viruses by the membrane separation process is challenging task, because virus particle is generally smaller than pore size of membrane used in MBR process. It has been well known that some viruses presented in wastewater can penetrate the membrane and is released into treated wastewater. The objective of this study is to establish the novel approach for the evaluation of the virus removal efficiency, based on health risks posed by enteric viruses in reclaimed wastewater.
- Removal of human pathogenic viruses in a down-flow hanging sponge (DHS) reactor treating municipal wastewater and health risks associated with utilization of the effluent for agricultural irrigation
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.
Water Research, 2017, 110, 389-398. - Evaluation of virus reduction efficiency in wastewater treatment unit processes as a credit value in the multiple-barrier system for wastewater reclamation and reuse
Ito, T., Kato, T., Hasegawa, M., Katayama, H., Ishii, S., Okabe, S., Sano, D.
Journal of Water and Health, 2016, 14(6), 879-889. - Estimation of concentration ratio of indicator to pathogen-related gene in environmental water based on left-censored data
Kato, T., Kobayashi, A., Ito, T., Miura, T., Ishii, S., Okabe, S. and Sano, D.
Journal of Water and Health, 2016, 14(1), 14-25. - Bayesian modeling of virus removal efficiency in wastewater treatment processes
Ito, T., Kato, T., Takagishi, K., Okabe, S. and Sano, D.
Water Science and Technology, 2015, 72(19), 1789-1795. - Electricity generation from cattle manure slurry by cassette-electrode microbial fuel cells
Inoue, K., Ito, T., Kawano, Y., Iguchi, A., Miyahara, M., Suzuki, Y. and Watanabe, K.
Journal of Bioscience and Bioengineering, 2013, 116(5), 610-615.
International conference presentation
- Log reduction of norovirus required in wastewater reclamation
Toshihiro Ito, Tsuyoshi Kato, Satoshi Ishii, Takahiro Segawa, Masaaki Kitajima, Satoshi Okabe, Daisuke Sano
The 5th Food and Environmental Virology Conference
Kusatsu, Gunma
September 13-16, 2016 - Bayesian estimation of virus removal efficiency in wastewater treatment plant based on left-censored dataset
Toshihiro Ito, Tsuyoshi Kato, Hiroyuki Katayama, Satoshi Okabe and Daisuke Sano
WET2015 (Aug. 5-6, 2015, Surugadai Campus, Nihon University, Japan) - Evaluation of virus removal efficiency in a pilot-scale MBR with microfluidic quantitative PCR
Toshihiro Ito, Satoshi Ishii, Takahiro Segawa, Yoshihito Nakahara, Satoshi Okabe and Daisuke Sano
WEF-EESS Asia-Pasific Wastewater Treatment and Reuse Conference 2015（Jun. 28-Jul. 1, 2015, Stephen Riady Centre in UTown, NUS, Singapore）
| 2017 Feb | Environmental Engineering Forum Best Paper Award for Young Professionals |
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