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Department of Urban Engineeging, The University of Tokyo

Urban Water Systems Laboratory

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Publications

 




Published Papers

Sachithra Imbulana, Kumiko Oguma, Groundwater as a potential cause of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka: A review Journal of Water and Health, 2021 (in press). DOI: https://doi.org/10.2166/wh.2021.079

Tomoya Hayashi, Kumiko Oguma, Yoshihiro Fujimura, Rika A. Furuta, Mitsunobu Tanaka, Mikako Masaki, Yasuhito Shinbata, Takafumi Kimura, Yoshihiko Tani, Fumiya Hirayama, Yoshihiro Takihara, Koki Takahashi, UV light-emitting diode (UV-LED) at 265 nm as a potential light source for disinfecting human platelet concentrates, PLoS ONE, 16(5), e0251650, 2021. DOI: https://doi.org/10.1371/journal.pone.0251650

Shresta, A., Kazama, S., Takizawa, S., Influence of service levels and Covid-19 on water supply inequalities of community-managed service providers in Nepal, Water, 13, 1349, 2021. DOI: https://doi.org/10.3390/w13101349

Lohwacharin, J., Maliwan, T., Ozawa, H., Takizawa, S., Effects of ferrihydrite-impernated powdered activated carbon on phosphate removal and biofouling of ultrafiltration membrane, Water, 13, 1178, 2021. DOI: https://doi.org/10.3390/w13091178

Surapong Rattanakul and Kumiko Oguma. Applicability of infectivity assay for the quantification of infectious human adenovirus genotype 5 in UV-irradiated wastewater. Journal of Water and Health 19(1): 67-78. 2021. (Available online in December 2020) DOI: https://doi.org/10.2166/wh.2020.224

Majid Keshavarzfathy, Yamato Hosoi, Kumiko Oguma, Fariborz Taghipour. Experimental and computational evaluation of a flow-through UV-LED reactor for MS2 and adenovirus inactivation. Chemical Engineering Journal, Available online 19 September 2020, 407, 127058, 2021. DOI: https://doi.org/10.1016/j.cej.2020.127058

Cacciatori, C., Hashimoto, T., Takizawa, S., Development of convolutional neural network models for feature extraction of PVDF membrane surfaces, J. JSCE, Ser. G (Environmental Research), Vol. 76, No. 7, III299-III309, 2020. DOI: https://doi.org/10.2208/jscejer.76.7_III_299

Khaing K. S., Kazama, S., Takizawa, S., Assessment of billed-unmetered water consumption to improve water utility management in Yangon City, J. JSCE, Ser. G (Environmental Research), Vol. 76, No. 7, III277-III285, 2020. DOI: https://doi.org/10.2208/jscejer.76.7_III_277

Namoto, K., Hashimoto, T., Kazama, S., Oguma, K., Takizawa, S., Longitudinal flowrate distribution and bypass flow measurement of broken hollow-fiber membranes, J. JSCE, Ser. G (Environmental Research), Vol. 76, No. 7, III205-III214, 2020. DOI: https://doi.org/10.2208/jscejer.76.7_III_205

Jinging Zhao, Yu Yang, Jiazhen Jiang, Satoshi Takizawa Li’an Hou, Influences of cross-linking agents with different MW on the structure of GO/CNT’s layers, membrane performances and fouling mechanisms for dissolved organic matter, Journal of Membrane Science, 617, 118616, 15 August 2020 DOI: https://doi.org/10.1016/j.memsci.2020.118616

Caterina Cacciatori, Takashi Hashimoto, Satoshi Takizawa, Modeling and Analysis of Particle Deposition Processes on PVDF Membranes Using SEM Images and Image Generation by Auxiliary Classifier Generative Adversarial Networks, Water, 12, 2225、2020. DOI: https://doi.org/10.3390/w12082225

Sachitra Imbulana, Kumiko Oguma, Satoshi Takizawa, Evaluation of groundwater quality and reverse osmosis water treatment plants in the endemic areas of Chronic Kidney Disease of Unknown Etioligy (CKDu) in Sri Lanka, Science of the Total Environment, 745(2929) 140716. DOI: https://doi.org/10.1016/j.scitotenv.2020.140716

Yu Yang, Jenyuk Lohwacharin, Satoshi Takizawa, Li-an Hou, Comparison between ferrihydrite adsorption and full-scale advanced drinking water treatment processes for controlling bacterial regrowth potential, Chemosphere, 241, 2020. DOI: https://doi.org/10.1016/j.chemosphere.2019.125001

Hiroshi Sakai, Mei Satake, Yasuhiro Arai, Satoshi Takizawa, Report cards for ageing and maintenance assessment of water-supply infrastructure, Journal of Water Supply: Research and Technology – AQUA, 69 (4): 355–364, 2020. DOI: https://doi.org/10.2166/aqua.2020.112

Benyapa Sawangjang, Satoshi Takizawa, Assessment of Fluoride Intake from Rice Consumption by Using Tap Water Containing Fluoride for Rice Soaking Water, Journal of Water and Environment Technology, Vol. 18, No. 2, 117-131, 2020 DOI: https://doi.org/10.2965/jwet.19-084

Bernice Yu Jeco, Aris Larroder and Kumiko Oguma. 2019. Techno-social feasibility analysis of solar-powered UV-LED water treatment system in a remote island of Guimaras, Philippines. Journal of Photonics for Energy, 9(4), 043105 (2019) DOI: https://doi.org/10.1016/j.heliyon.2019.e02391

Kumiko Oguma, Surapong Rattanakul and Mie Masaike, Inactivation of health-related microorganisms in water using UV light-emitting diodes, Water Science and Technology: Water Supply, 19 (5), 1507-1514, 2019. DOI: https://doi.org/10.1117/1.JPE.9.043105

Benyapa Sawangjang, Takashi Hashimoto, Aunnop Wongrueng,, Suraphong Wattanachira, and Satoshi Takizawa, Assessment of fluoride intake from groundwater and intake reduction from delivering bottled water in Chiang Mai Province, Thailand, Heliyon, Volume 5, Issue 9, September 2019. DOI: https://doi.org/10.1016/j.heliyon.2019.e02391

Vu Duc Canh, Hideki Osawa, Kentaro Inoue, Ikuro Kasuga, Satoshi Takizawa, Hiroaki Furumai, Katayama Hiroyuki, Ferrihydrite treatment to mitigate inhibition of RT-qPCR virus detection from large-colume environmental water samples, Journal of Virological Methods, Vol.263, 60-67, 2019. DOI: https://doi.org/10.1016/j.jviromet.2018.10.018

Kumiko Oguma, Inactivation of feline calicivirus using ultraviolet light-emitting diodes, FEMS Microbiology Letters, 365(18), 1-4, 2018. DOI: 10.1093/femsle/fny194

Guragai B., Hashimoto T., Oguma K., Takizawa S., Data logger-based measurement of household water consumption and micro-component analysis of an intermittent water supply system, Journal of Cleaner Production 197(1), 1159-1168, 2018. DOI: 10.1016/j.jclepro.2018.06.198

Oguma K., Kanazawa K., Kasuga I., Takizawa S., Effects of UV irradiation by light emitting diodes on heterotrophic bacteria in tap water, Photochemistry and Photobiology 94(3), 570-576, 2018. DOI: 10.1111/php.12891

Surapong Rattanakul and Kumiko Oguma, Inactivation kinetics and efficiencies of UV-LEDs against Pseudomonas aeruginosa, Legionella pneumophila, and surrogate microorganisms, Water research 130, 31-37, 2018. DOI: 10.1016/j.watres.2017.11.047

Zhang S., Yang Y, Takizawa S, Hou L., Removal of dissolved organic matter and control of membrane fouling by a hybrid ferrihydrite-ultrafiltration membrane system, Science of the Total Environment, 631-632, 560-569, 2018. DOI:10.1016/j.scitotenv.2018.03.045

Amano M., Lohwacharin J., Dubechot A., Takizawa S., Performance of integrated ferrate – polyaluminum chloride coagulation as a treatment technology for removing freshwater humic substances, Journal of Environmental Management, 212, 323-331, 2018. DOI: 10.1016/j.jenvman.2018.02.022


Bibas Guragai Satoshi Takizawa, Takashi Hashimoto、Kumiko Oguma, Water Quality Change from Source to the Point-of-Consumption in an Intermittent Water Supply System, 土木学会論文集G(環境)、J. JSCE, Ser. G (Environmental Research), Vol. 73, No. 7, III_29-III_39, 2017.

Surapong Rattanakul and Kumiko Oguma, Analysis of Hydroxyl Radicals and Inactivation Mechanisms of Bacteriophage MS2 in Response to a Simultaneous Application of UV and Chlorine, Environmental Science and Technology, 51 (1), 455–462, 2017. DOI: 10.1021/acs.est.6b03394

Praphasiri Chantharawong, Aunnop Wongrueng, Pharkphum Rakruam, Suraphong Wattanachira, Satoshi Takizawa, Effects of Activated Carbon and Cationic Exchange Resin Pretreatments on Groundwater Defluoridation by Reverse Osmosis Process, Engineering Journal, March 31, 2017. DOI: https://doi.org/10.4186/ej.2017.21.2.123

Praphasiri Chantharawong, Aunnop Wongrueng, Pharkphum Rakruam, Suraphong Wattanachira, Satoshi Takizawa, Effects of Activated Carbon and Cationic Exchange Resin Pretreatments on Groundwater Defluoridation by Reverse Osmosis Process, Engineering Journal 21(2), 123-132, 2017. DOI:10.4186/ej.2017.21.2.123

Zhang Chunpeng, Lohwacharin Jenyuk, Satoshi Takizawa, Effect of Ions on Removal of TiO2 Nanoparticles by Coagulation and Microfiltration, Environmental Engineering Science 35(5), 420-429, 2017. DOI:10.1089/ees.2017.0057

Zhang Chunpeng, Lohwacharin Jenyuk, Satoshi Takizawa, Properties of residual titanium dioxide nanoparticles after extended periods of mixing and settling in synthetic and natural waters, Scientific Reports 7, 9943, 2017. DOI:10.1038/s41598-017-09699-9

Yu Y., Lohwacharin J., Takizawa S., Analysis of adsorption processes of dissolved organic matter (DOM) on ferrihydrite using surrogate organic compounds, Environmental Science and Pollution Research 24(27), 21867-21876, 2017. DOI 10.1007/s11356-017-9811-x

Guragai B., Takizawa S., Hashimoto T., Oguma, K., Effects of inequality of supply hours on cunsumers’ coping strategies and perceptions of intermittent water supply in Kathmandu Valley, Nepal, Science of the Total Environment, 599-600, 431-441, 2017. DOI:10.1016/j.scitotenv.2017.04.182

Sakai H., Callaud P., Kosaka K., Takizawa S., Degradation of nume nitrosamines in water by ultraviolet irradiation, Desalination and Water Treatment 58, 422-488, 2017. DOI:10.5004/dwt.2017.11427

Kuroda K., Hayashi T., Funabiki A., Do An Thuan, Canh Vu Duc, Nga Tran Thi Viet, Takizawa S., Holocene estuarine sediments as a source of arsenic in Pleistocene groundwater in subuerbs of Hanoi, Vietnam, Hydrogeological Journal, 25 (4), 1137-1152, 2017. DOI: 10.1007/s10040-016-1527-3

Kuroda K., Hayashi T., Do An Thuan, Canh Vu Duc, Nga Tran Thi, Funabiki A., Takizawa S., Groundwater recharge in suburban areas of Hanoi, Vietnam: effect of decreasing surface-water bodies and land-use change, Hydrogeological Journal 25 (3), 727-742, 2017. DOI: 10.1007/s10040-016-1528-2

Hideki Osawa, Jenyuk Lohwacharin, Satoshi Takizawa, Controlling disinfection by-products and organic fouling by integrated ferrihydrite-microfiltration process for surface water treatment, Separation and Purification Technology 176, 184-192, 2017. DOI:10.1016/j.seppur.2016.12.003

Hanggara Sudrajat, Sandhya Babel, Hiroshi Sakai, Satoshi Takizawa, Rapid enhanced photocatalytic degradation of dyes using novel N-doped ZrO2, Journal of Environmental Management 165, 224-234 (2016)

Hiroshi Sakai, Shunsuke Tokuhara, Michio Murakami, Koji Kosaka, Kumiko Oguma, and Satoshi Takizawa, Comparison between chlorination and chloramination in the carbonaceous and nitrogenous disinfection by-products formation potentials with prolonged contact time, Water Research 88, 661-670, 2016. DOI:10.1016/j.watres.2015.11.002

Pawena Limpiteeprakan, Sandhya Banel, Jenyuk Lohwacharin, Satoshi Takizawa, Release of silver nanoparticles from fabrics during the course of sequential washing, Environmental Science and Pollution Research 23, 22810-22818, 2016. DOI: 10.1007/s11356-016-7486-3

Kumiko Oguma, Ryo Kita and Satoshi Takizawa, Effects of Arrangement of UV Light-Emitting Diodes on the Inactivation Efficiency of Microorganisms in Water, Photochemistry and Photobiology 92: 314–317, 2016. DOI: 10.1111/php.12571

Kumiko Oguma, Surapong Rattanakul, and James R. Bolton. Application of UV Light Emitting Diodes to Adenovirus in Water, Journal of Environmental Engineering, ASCE, Volume 142, Issue 3, 04015082, 2016. DOI: 10.1061/(ASCE)EE.1943-7870.0001061

Athit Phetrak, Jenyuk Lohwacharin, Satoshi Takizawa, Analysis of trihalomethane precursor removal from sub-tropical reservoir waters by a magnetic ion exchange resin using a combined method of chloride concentration variation and surrogate organic molecules, Science of the Total Environment (STOTEN), 539, 165-174, 2016. DOI:10.1016/j.scitotenv.2015.08.111

Zhang Y, Takizawa S, Lohwacharin J, Spontaneous Particle Separation and Salt Rejection by Hydrophilic Membranes, Water Journal, 2015. doi: 10.14294/WATER.2015.2

Rattanakul S, Oguma K, Takizawa S, Sequential and Simultaneous Applications of UV and Chlorine for Adenovirus Inactivation, Food and Environmental Virology, 7(3), 295-304, 2015. DOI 10.1007/s12560-015-9202-8

Jenyuk Lohwacharin, Athit Phetrak, Satoshi Takizawa, Yuuma Kanisawa, Sadao Okabe, Bacterial Growth during the Start-up Period of Pilot-Scale Biological Activated Carbon Filters: Effects of Residual Ozone and Chlorine and Backwash Intervals, Process Biochemistry, Vol. 50, pp. 1640-1647, 2015

Lohwacharin J, Takizawa S, Punyapalakul P, Carbon black retention in saturated natural soils: Effects of flow conditions, soil surface roughness and soil organic matter, Environmental Pollution, Vol. 205, pp. 131-138, 2015. doi:10.1016/j.envpol.2015.05.036

Keisuke Kuroda, Norihide Nakada, Seiya Hanamoto, Manami Inaba, Hiroyuki Katayama, An Thuan Do, Tran Thi Viet Nga, Kumiko Oguma, Takeshi Hayashi, Satoshi Takizawa, Pepper mild mottle virus as an indicator and a tracer of fecal pollution in water environments: Comparative evaluation with wastewater-tracer pharmaceuticals in Hanoi, Vietnam, Science of the Total Environment, 506-507 (2015) 287-298. http://dx.doi.org/10.1016/j.scitotenv.2014.11.021

Surapong RATTANAKUL, Kumiko OGUMA, Hiroshi SAKAI, Satoshi TAKIZAWA, Inactivation of Viruses by Combination Processes of UV and Chlorine, Journal of Water and Environment Technology, Vol. 12, No. 6, 511-523, 2014 http://doi.org/10.2965/jwet.2014.511

Yu Yang, Janyuk Lohwacharin, Satoshi Takizawa, Hybrid ferrihydrite-MF/UF membrane filtration for the simultaneous removal of dissolved organic matter and phosphate, Water Research, Vol. 15, No. 65, pp. 177-185. 2014. DOI: 10.1016/j.watres.2014.07.030 (2014)

Lohwacharin J, Phetrak A., Oguma K., Takizawa S., Flocculation performance of magnetic particles with high turbidity surface water, Water Science and Technology – Water Supply, 14 (4), pp. 609 – 617, 2014.

Keisuke Kuroda, Michio Murakami, Kumiko Oguma, Hideshige Takada and Satoshi Takizawa (2014) Investigating sources and pathways of perfluoroalkyl acids (PFAAs) in aquifers in Tokyo using multiple tracers, Science of the Total Environment 488–489, pp. 51–60. http://dx.doi.org/10.1016/j.scitotenv.2014.04.066

AthitPhetrak, JenyukLohwacharin, Hiroshi Sakai, Michio Murakami, Kumiko Oguma and Satoshi Takizawa (2014) Simultaneous Removal of Dissolved Organic Matter and Bromide from Drinking Water Source by Anion Exchange Resins for Controlling Disinfection By-Products, Journal of Environmental Sciences (acceptted)

Hiroshi Sakai, Tatsuro Takamatsu, Kumiko Oguma, Michio Murakami, Koji Kosaka, Mari Asami, and Satoshi Takizawa (2014) Effects of Natural Organic Matter and Nitrate on the Behavior of NDMA during UV Irradiation and Chloramination, Journal of Water Supply: Research and Technology - Aqua (in press)

Kumiko Oguma, Jatuwat Sangsanont, and Hiroyuki Katayama, Comparison between chlorination and UV disinfection of untreated wastewater after disasters, Journal of Water and Environment Technology, 12(3), 154-161, 2014 http://doi.org/10.2965/jwet.2014.321

Keisuke Kuroda, Takeshi Hayashi, Naoko Watanabe, Kumiko Oguma, Tran Thi Viet Nga and Satoshi Takizawa (2013) Influence of Pond Seepage on Groundwater Pollution by Arsenic in Hanoi, Viet Nam, Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research), 69 (7) 17-28

J. Lohwacharin, Y. Yang, N. Watanabe, A. Phetrak and S. Takizawa, Removal of DOM and AOC in a Full-Scale Advanced Water Treatment Plant: Effects of Operational Periods of BAC filters, Water Science and Technology: Water Supply, Vol. 14, Issue 1,

Kumiko Oguma, Ryo Kita, Hiroshi Sakai, Michio Murakami and Satoshi Takizawa, Application of UV light emitting diodes to batch and flow-through water disinfection systems, Desalination 328, p24-30, 2013
        

Kumiko Oguma, KentaroIzaki and Hiroyuki Katayama, Effects of salinity on photoreactivation of Escherichia coli after UV disinfection, Journal of Water and Health, v11, n3, p457-464, 2013
        

Hiroshi SAKAI, Aimin HAO, Yasushi ISERI, Song WANG, Takahiro KUBA, Zhenjia ZHANG, and Hiroyuki KATAYAMA (2013) Occurrence and Distribution of Microcystins in Lake Taihu, China, The Scientific World Journal, 2013, 838176

Hiroshi Sakai, YatsukaKataoka, and Kensuke Fukushi (2013) Quality of Source Water and Drinking Water in Urban Areas of Myanmar, The Scientific World Journal, 2013, 854261

Michio Murakami, Hiroshi Nishikoori, Hiroshi Sakai, Kumiko Oguma, Hideshige Takada, Satoshi Takizawa, Formation of perfluorinated surfactants from precursors by indigenous microorganisms in groundwater, Chemosphere, 93, p.140-145, 2013
         

An Thuan Do, Keisuke Kuroda, Takeshi Hayashi, Tran Thi Viet Nga, Kumiko Oguma and Satoshi Takizawa, Household Survey of Installation and Treatment Efficiency of Point-of-Use Water Treatment Systems in Hanoi, Vietnam, IWA-Aqua, in press (doi:10.2166/aqua.2013.011).
        

Hiroshi Sakai, Olivier Autin, Simon Parsons (2013) Change in Haloacetic Acid Formation Potential during UV and UV/H2O2 Treatment of Model Organic Compounds, Chemosphere (accepted)
        

Miho Kuroiwa
Takako Masuda TakuoOmura AunnopWongrueng Kumiko Oguma Hiroshi Sakai Michio Murakami Satoshi Takizawa, Membrane fouling in seawater desalination processes caused by harmful dinoflagellate Cochlodiniumpolykrikoides, Desalination and Water Treatment, 51, 4-6, 950-957, 2013.         

Takuya Ishida
Satoshi Takizawa Naoko Watanabe Michio Murakami Hiroshi Sakai Kumiko Oguma, Optimum operation of desalination plant to minimize power consumption and water shortage risks in Okinawa, Japan, Desalination and Water Treatment, 51, 1-3, 19-25, 2013         

Hiroshi SAKAI, Koji KOSAKA, Satoshi TAKIZAWA. Effect of
 wavelength on UV-degradation of N-Nitrosodimethylamine, Ozone Science & Engineering, 2012. (in press)         

AthitPhetrak, JenyukLohwacharin, Naoko Watanabe, Michio Murakami, Hiroshi Sakai, Kumiko Oguma and Satoshi Takizawa (2012) Competitive Removal of Dissolved Organic Matter (DOM) and Inorganic Anions by Anion Exchange Resins (AERs), Water Science and Technology: Water Supply, 12(5), pp.630-636.
        

Hiroshi SAKAI, Tatsuro TAKAMATSU, Koji KOSAKA, Naoyuki KAMIKO, and Satoshi TAKIZAWA, (2012) Effects of Wavelength and Water Quality on Photodegradation of N-Nitrosodimethylamine (NDMA), Chemosphere, 89(6), pp.702-707
        

Yu Yang, Satoshi Takizawa, Hiroshi Sakai, Michio Murakami, Naoko Watanabe (2012) Removal of organic matter and phosphate using ferrihydrite for reduction of microbial regrowth potential, Water Science and Technology, 66(6), pp.1348-1353
        

Keisuke Kuroda, Michio Murakami, Kumiko Oguma, Yuki Muramatsu, Hideshige Takada, Satoshi Takizawa. Assessment of Groundwater Pollution in Tokyo using PPCPs as Sewege Markers. Environmental Science and Technology 46, 1455-1464, 2012.

Hiroshi Nishikoori, Michio Murakami, Hiroshi Sakai, Kumiko Oguma, Hideshige Takada, Satoshi Takizawa. Estimation of contribution from non-point sources to perfluorinated surfactants in a river by using boron as a wastewater tracer. Chemosphere 84, 1125-1132, 2011.
        

Hiroshi SAKAI, Hiroyuki KATAYAMA, Kumiko OGUMA, Shinichiro OHGAKI. Effect of Photoreactivation on UV Inactivation of Microcystis aeruginosa. Water Science and Technology, 63(6), 1224-1229, 2011.

Nguyen Thi Van Ha, Takizawa S, Oguma K , Nguyen Van Phuoc, Sources and leaching of manganese and iron in the Saigon 1 River Basin, Vietnam, Water Science and Technology, in press.

Hiroshi Sakai, Tatsuro, Takamatsu, Kumiko Oguma, Michio Murakami, Koji Kosaka, Mari Asami, Satoshi Takizawa : Influence of Nitrate on UV-degradation of N-nitrosodimethylamine (NDMA), IUVA News, 12(2), pp.26-29, 2010.

Tatsuro Takamatsu,, Hiroshi Sakai, Kumiko Oguma, Michio Murakami, Koji Kosaka, Mari Asami, Satoshi Takizawa : Photodegradation of N-nitrosodimethylamine (NDMA) and its reproduction by chlorination, Environmental Engineering Research, 47, pp.127-133, 2010.[abstract in English; text, figures and tables in Japanese]

Babel S, Takizawa S, Microfiltration membrane fouling and cake behavior during algal filtration, Desalination, Vol. 261, pp. 46-51, 2010.

Michio Murakami, and Satoshi Takizawa : Current status and future prospects of pollution in water environments by perfluorinated surfactants, Journal of Japan Society on Water Environment, 33(8), pp.103-114, 2010. (review) [abstract, figures and tables in English; text in Japanese]

Lohwacharin J, Oguma K, Takizawa S, Use of carbon black nanoparticles to mitigate membrane fouling in ultrafiltration of river water, Separation and Purification Technology, Vol. 72, pp. 61-69, 2010.

Takizawa, S., Takeda T., Wongrueng A, Wattanachira S, Child-education program for the reduction of health risks due to fluoride in water sources in the Chiang Mai Basin, Thailand, Water Science and Technology, Vol. 61, No. 9, pp. 2391-2397, 2010.

Michio Murakami, EriHiraoka, Keisuke Kuroda, Kumiko Oguma, Satoshi Takizawa : Water supply and demand in disasters and potential use of groundwater in Chiyoda Ward, Tokyo, Journal of Water and Waste, 52(2), pp.125-135, 2010. [in Japanese]

Michio Murakami, Keisuke Kuroda, Nobuyuki Sato, Tetsuo Fukushi, Satoshi Takizawa, Hideshige Takada : Groundwater pollution by perfluorinated surfactants in Tokyo, Environmental Science & Technology, 43(10), pp.3480-3486, 2009.


Lohwacharin, J., and Takizawa S., Effects of nanoparticles on ultrafiltration of surface water, Journal of Membrane Science, Vol. 326, pp. 354-362, 2009.

[English Title]
Kuroda K., Fukushi T., Oguma K., Takizawa S., Distribution characteristics of dissolved iron concentration and redox potential on groundwaters in the central Tokyo district, Jour. Japan Association of Hydrological Science, Vol. 38, No. 2, 2008.

[English Title]
Kawagoe S., Kikuchi Y., Kazama S., Takizawa S., Effect of water quality on Japanese major river caused by climate change, Environmental Engineering Research, Vol. 45, pp. 467-474, 2008.

Wongrueng, A., Takizawa, S., Matsui, Y., Oguma K., Wattanachira, S., Analysis of ULPRO membrane fouling used for groundwater defluoridation, Environmental Engineering Research, Vol. 45, pp. 613-620, 2008.

Kuroda, K., Fukushi, T., Takizawa, S., Murakami, M., Takada, H., Nakada, N., Aichi, M., Hayashi, T., Tokunaga, T., Sources of, and influencing factors of groundwater contamination in Tokyo metropolitan area, Groundwater Quality: Securing Groundwater Quality in Urban and Industrial Environments (Proc. 6th International Groundwater Quality Conference held in Fremantle, Western Australia, December 2007) IAHS Publ. 324, 2008, 16-23.

Nguyen Thi Van Ha, Masaaki Kitajima, Nguyen Vo Minh Hang, Koichi Matsubara, Satoshi Takizawa, Hiroyuki Katayama, Kumiko Oguma and Shinichiro Ohgaki. Bacterial contamination of raw vegetables, vegetable-related water and river water in Ho Chi Minh City, Viet Nam. Water Science and Technology, Vol. 58, No. 12, pp. 2403-2411, 2008.

Katayama, H., Haramoto, E., Oguma, K., Yamashita, H., Tajima, A., Nakajima, H., and Ohgaki, S. One-year monthly quantitative survey of noroviruses, enteroviruses and adenoviruses in wastewater collected from six plants in Japan, Water Research, Volume 42, Issues 6-7, 1441-1448, 2008.

Takizawa S., Zhao, P., Ohgaki, S., Katayama, H., Kinetic analysis of PAC cake-layer formation in hybrid PAC-MF systems, Water Science and Technology: Water Supply, Vol. 8, No. 1, pp. 1-7.

Kim H.A., Matsui Y., Choi J. H., Takizawa S., Effect of pretreatment process on fouling of nanofiltration membranes for drinking water treatment, Water Science and Technology: Water Supply, 2008, in press.

Nakada, N., Kiri, K., Shinohara, H., Harada, A.,Kuroda, K., Takizawa, S., Hideshige Takada, H, Evaluation of pharmaceuticals and personal care products (PPCPs) as water-soluble molecular markers of sewage, Environmental Science and Technology, Vol.42, pp.6347-6353, 2008.

Lohwacharin J., Takizawa, S., Ohgaki, S., Effectis of self-dispersible carbon black and cations on ultrafiltration of humic acid solution, Separation Science and Technology, 43 (7) : 1852-1870, 2008.

EijiHaramoto, Hiroyuki Katayama, Kumiko Oguma, and Shinichiro Ohgaki. Quantitative analysis of human enteric adenoviruses in aquatic environments, Journal of Applied Microbiology. 103(6):2153-2159. 2007.

EijiHaramoto, Hiroyuki Katayama, Kumiko Oguma, and Shinichiro Ohgaki. Recovery of naked viral genomes in water by virus concentration methods. Journal of Virological Methods. 142(1-2):169-173. 2007.

Sakai, H., K. Oguma, H. Katayama, and S. Ohgaki. Effects of low- or medium-pressure ultraviolet lamp irradiation on Microcystis aeruginosa and Anabaena variabilis, Water Research, 41. 11-18. 2007.

Ha, NTV, Takizawa, S., Hang, NVM, Phuong, PTD, Natural and anthropogenic sources affecting seasonal variation of water quality in DauTieng reservoir, Vietnam, Environmental Engineering Research, Vol. 44, pp. 23-30. 2007.

Kim,H-A, Choi, J-H, and Takizawa, S., Comparison of initial filtration resistance by pretreatment processes in the nanofiltration for drinking water treatment, Separation and Purification Technology, Vol. 56, Issue 3, pp. 354-362, 2007.

Tran Thi Viet Nga and Takizawa, S., Natural occurrence of arsenic in the organic-rich aquifer in Hanoi City: sources and mobilization processes, Southeast Asian Water Environment, vol. 2, pp. 189-196, IWA Publishing, 2007.

Nguyen, T. Thuong, Takizawa, S., Nguyen, P. Dan., Bui, D. Truong, Water pollution in inner-city canals in Ho Chi Minh City, Viet Nam, Southeast Asian Water Environment, vol. 2, pp 107-114, IWA Publishing, 2007.

Sthiannopkao, S., Takizawa, S. and Wirojanagud, W., Analysis of reforestation as a watershed management policy for soil erosion control: a case study in the upstream Phong River, Thailand, Southeast Asian Water Environment, vol. 2, pp. 67-74, IWA Publishing, 2007.

Haramoto
E. H. Katayama K. Oguma H. Yamashita A. Tajima H. Nakajima and S. Ohgaki, Seasonal profiles of human noroviruses and indicator bacteria in wastewater treatment plant in T okyo Japan., Water Science & Technology, 54(11-12), 301-308, 2006.

Masago
Y. K. Oguma H. Katayama and S. Ohgaki, Quantification and genotyping of Cryptosporidium spp. in river water by quenching probe PCR and denaturing gradient gel electrophoresis, Water Science & Technology, 54(3), 119-126, 2006.

Haramoto
E. H. Katayama K. Oguma Y. Koibuchi H. Furumai and S. Ohgaki, Effects of rainfall on the occurrence of human adenoviruses total coliforms and Escherichia coli in seawater, Water Science & Technology, 54(3), 225-230, 2006

Punyapalakul, P., Takizawa, S., Effect of Surface Functional Group on Adsorption of Organic Pollutants on Hexagonal Mesoporous Silicate, Water Science and Technology, Vol. 63, No. 3, pp.17-25, 2006.

Reungsang, A., Takizawa, S., Wirojanagud, W., Distribution of PCDDs/PCDFs in Sediments from the Pong River, KhonKaen, Thailand., Environmental Engineering Research, Vol. 43, pp. 637-643, 2006.

Kuroda, K. Fukushi, T., Takizawa, S., Aichi, T., Hayashi, T., Tokunaga, T., Groundwater Contamination in Tokyo and Estimation of the Contamination Source, Journal of Water and Waste, Vol. 48, No. 9, pp. 37-45, 2006. (in Japanese).

Oh. H.K., Takizawa, S., Ohgaki, S., Katayana, H., Oguma, K., and Yu, M. J., Removal of organics and viruses using hybrid ceramic MF system without draining PAC, Desalination, 202, pp.191-198, 2006.

Oh, H.K., Yu, M.G., Takizawa, S., Ohgaki, S., Evaluation of PAC behavior and fouling formation in an integrated PAC-UF membrane for surface water treatment, Desalination, Vol. 192, pp. 54-62, 2006.

Kim, H. S., Katayama, H., Takizawa, S., Ohgaki, S., Development of a microfilter separation system coupled with a high dose of powdered activated carbon for advanced treatment, Desalination, Vol. 186, No. 3, pp. 215-226, 2006.

Sthiannopkao, S., Takizawa, S. and Wirojanagud, W., Effects of Soil Erosion on Water Quality and Water Uses in the Upper Phong Watershed, Water Science and Technology, Vol. 53, No.2, 2006.

Matsui, Y., Takeda, T., Takizawa, S., Wongrueng, A., Wattanachira, S., Evaluation of Nanofiltration Process for Fluoride Removal from Groundwaters in the Chiangmai Basin, Jour. JSCE, Oct. 2006. (in Japanese)

Punyapalakul, P., Takizawa, S., Effect of Surface Functional Group on Adsorption of Organic Pollutants on Hexagonal Mesoporous Silicate, Water Science and Technology53, No. 2, pp.45-52, 2006.

Punyapalakul, P., Takizawa, S., Selective adsorption of nonionic surfactant on hexagonal mesoporous silicates (HMSs) in the presence of ionic dyes, Water Research, Vol. 40, No. 17, pp. 3177-3184, 2006.

Nguyen, T. V. Ha, Takizawa, S., Impacts of Policy Changes on Fish Cage Culture and Water Quality in DauTieng Reservoir, Vietnam, WSEAS Transactions on Environment and Development, Issue 6, Vol. 2, pp. 800-807, 2006.

Phanuwan, C., Takizawa, S., Oguma, K., Katayama, K., Yunika, A. and Ohgaki, O., Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia, Water Science and Technology, Vol. 54, No.3, pp.203-210, 2006.

Punyapalakul, P., and Takizawa, S., Adsorption and Recovery of AlkylphenolPolyethoxylates from Synthetic Wastewater Using Hexagonal Mesoporous Silicate, Water Science and Technology, Vol. 53, No. 2, pp. 45-52, 2006.

Sthiannopkao, S., Takizawa, S. and Wirojanagud, W., Effects of Soil Erosion on Water Quality and Water Uses in the Upper Phong Watershed, Water Science and Technology, Vol. 53, No.2 (2006)

Takizawa, S., Iwasaki, C., and Oguma, K., Effects of Water Tariff Structures on Water Demand in Tokyo Metropolis, Water Supply, Nos.5/6, pp. 232-240. 2005.

Zhao, P., Takizawa, S., Katayama, H. and Ohgaki, S., Factors causing PAC cake fouling in PAC-MF (Powdered activated carbon ? microfiltration) water treatment system, Water Science and Technology, Vol. 51, No. 6-7, 2005

Takizawa, S. and Win, T., Removal of Tricholoroethylene and trichloroethane using a novel hollow-fibre gas-permeable membrane, Water Science and Technology: Water Supply, Vol. 3, No. 5., pp. 67-72, 2003

Nga, T.T.V., Inoue, M., Khatiwada, N. R., and Takizawa, S., Heavy metal tracers for the Analysis of Groundwater Contamination: Case Study in Hanoi City, Water Science and Technology, Vol. 3, Nos. 1-2, pp. 343-350, 2003

Khatiwada, N. R., Takizawa, S. Tran, T.V.N., and Inoue, M. (2002) Assesing Groundwater Contamination in Kathmandu
 Valley,Technical Journal, Nepal Engineers Association, Lalitpur, Nepal, Vol. 1,pp. 51-54.

Khatiwada, N. R., Takizawa, S. and Tran, T.V. N. (2002) Holistic Approach for Urban Water Management, Development Insight, IDI Pvt.Ltd., Kathmandu, Nepal, Vol. 1, No. 1, pp. 34-38.

Khatiwada, N. R., Takizawa, S., Tran, T. V. N. and Inoue, M., Groundwater Contamination Assessment for Sustainable Water Supply in Kathmandu Valley, Nepal, Water Science and Technology, Vol. 46, No. 9, pp. 147-154, 2002

Park, J-H., Takizawa, S, Katayama, H, and Ogaki, S., Biofilter Pretreatment for the Control of Microfilter Membrane Fouling, Water science and Technology: Water Supply, Vol. 2, No. 2, pp. 193-199, 2002

Seo, G-T., S, Takizawa, S. and Ogaki, S., Ammonia Oxidation at Low Temperature in High Concentration Powdered Activated Carbon Membrane Reactor, Water Science and Technology, Vol. 2, No. 2, pp. 169-176, 2002

Babel, S., Takizawa, S., and Ozaki, H., Factors Affecting Seasonal Variation of Membrane Filtration Resistance Caused by Chlorella Algae, Water Research, Vol.36, pp. 1193-1202 (2002)

Khan, M. M., Kim, H. S., Katayama, H., Takizawa, S., and Ohgaki, S., The effect of particulate material and the loading of bacteria on a high dose PAC-MF system, Water Science and Technology: Water Supply, Vol. 2, Nos.. 5-6, pp. 359-365, 2002

Takizawa, S., Fu, L., Pradhan, N., Ike, T., Ohtaki, M., Ohgaki, S., Pre-treatment processes for membrane filtration of raw water containing manganese, Water Science and Technology, Vol. 1, Nos. 5/6, pp. 341-348 (2001).

Huang, J. Y., Takizawa, S., Fujita, K., Comparison of UV and Chlorine Pretreatment in Pilot Microfilter Membrane Separation for Drinking Water, Water Science and Technology, Vol. 1, Nos. 5/6, pp. 245-251 (2001).

Vasanthadevi, A., Mino, T., and Takizawa, S., Sludge Hydrolysate as a Carbon Source for Denitrification, Water Science and Technology, Vol.43, No.1, pp.191-199 (2000)

Huang, J. Y., Takizawa, S., Fujita, K., Retentate Thickening by Granular Filter in Membrane Water Purification Process, Water Science and Technology, in press (2000)

Babel, S. and Takizawa, S., A Study on Membrane Fouling due to Algal Deposition, Water Science and Technology, Vol. 41, No. 10-11, pp.327-335 (2000)

Takizawa, S., Lei, F., Punsiri, S., Nga, TTV, Water supply and water quality in rural areas, Water Supply, Vol. 18, No. 1, pp. 475-478, (2000)

Kaiya, Y., Itoh, Y., Takizawa, S., Fujita., K., and Tagawa, T., Fouling Analysis in Membrane Process for Drinking Water Production, Water Science and Technology, Vol. 41, No. 10-11 , PP. 59-67 (2000)

Takizawa, S., Babel, S., Prathomrungsiyunkul, T., Suwannarit, K., and Yamazaki S., Crossflow Ultrafiltration for Surface Water Treatment in North Thailand, Water Science and Technology, Vol. 41, No. 10-11, pp. 69-76 (2000)

Huang, J., Takizawa, S., Fujita, K., Kobashashi, Y., Matsumoto, K. and Ohgaki, S., Pilot-plant Study of a High Recovery Membrane Filtration Process for Water Treatment, Water Science and Technology, Vol. 41, No. 10-11, PP. 77-84 (2000)

Takizawa, S., Lei, F. Punsiri, S., and Nga, T.T.V., Water Supply and Water Quality in Rural Areas- Cost and Health Benefit Analysis of Rural Water Supply in Southeast Asian Countries, Water Supply, Vol. 18, No. 1, pp. 475-478 (2000)

Otaki, M., Takizawa, S., and Ohgaki, S, Control and modeling of membrane fouling due to microorganism growth by UV pretreatment, Water Science and Technology, Vol. 38, No. 4-5, pp. 405-412 (1998)

Vasanthadevi, A., Takizawa, S., and Fujita, K., Factors affecting nitrogen removal from domestic wastewater using immobilized bacteria, Water Science and Technology, Vol. 38, No. 1, pp. 193-202 (1998)

Vasanthadevi, A., Mino, T., Satoh, H., Takizawa, S., and Matsuo, T., Alkaline, acid, and thermal solubilization for minimization of waste sludge, Environmental Engineering Research, Vol. 35, pp. 189-198 (1998)

S. Takizawa, V. Aravinthan, and K. Fujita: Nitrogen Removal from Domestic Wastewater Using Immobilized Bacteria, Water Science and Technology, Vol. 34, No. 1-2, pp. 431-440 (1996)

Kaiya, Y., Itoh, Y., Fujita, K., and Takizawa, S., Study on fouling materials in the membrane treatment process for potable water, Desalination, Vol.106, pp.71-77 (1996)

Takizawa, S., Fujita, K., and Kim Hyung Soo; Membrane Fouling Decrease by Microfiltration with Ozone Scrubbing, Desalination, Vol.106, pp.423-426 (1996)

H. Harada, K. Momomoi, S. Yamazaki, and S. Takizawa; Application of anaerobic-UF membrane reactor for treatment of a wastewater containing high strength particulate organics, Water Science and Technology, 1994,30, 12(307-319)

Book

Takizawa S., ed., Groundwater Management in Asian Cities, Springer, March 2008.

Takizawa S. Groundwater use and management in urban area, Chapter 2, In: Groundwater management in Asian cities, Takizawa S. ed., Springer, March 2008.

Kuroda K. and Fukushi T., Groundwater contamination in urban areas, Chapter 7, In: Groundwater management in Asian cities, Takizawa S. ed., Springer, March 2008.

Sigrist M., Groundwater contamination Asian coastal cities: Case study of Ho Chi Minh City, Vietnam, Chapter 13, In: Groundwater management in Asian cities, Takizawa S. ed., Springer, March 2008.

Nga TTV., Arsenic contamination in Hanoi City, Vietnam, Chapter 14, In: Groundwater management in Asian cities, Takizawa S. ed., Springer, March 2008.

Takeda T. and Takizawa S., Health Risks of Fluoride in the Chiang Mai Basin, Thailand, Chapter 15, In: Groundwater management in Asian cities, Takizawa S. ed., Springer, March 2008.

Takizawa, S. and Punyapalakul, P., Adsorption of organic contaminants by mesoporous silicate, Chapter 6 in Water Resources Research Progress, Liam N. Robinson, ed., pp. 177-203, Nova Science Publishers, Inc., ISBN: 978-1-60021-973-3, 2008




Reports

Takeda T. and Takizawa S., Reducing the impact of fluoride intake in Thailand, Asian Water, December 2008.




Conference Presentation

B. Guragai, S. Takizawa, T. Hashimoto, K. Oguma.Water quality change from source to the point-of-consumption in an intermittent water supply system. 54th Japan Society of Civil Engineers Environmental Engineering Research Forum, Gifu, Japan, Nov, 2017


Kumiko Oguma, UV-LEDs for water disinfection: The forefront of research and applications, The International Conference on UV LED Technologies & Applications(ICULTA) 2021, 19 April 2021.
Kumiko Oguma, UV disinfection the achievements and prospects for the future, International UV Association Workshop, 2021.2.18.
Thor Kounthy、Shinobu Kazama、Satoshi Takizawa, Management Practice of Private Water Service Operators in Cambodia, 23ed Japan Society on Water Environment Symposium, 2020.9.10.
Kumiko Oguma, JST-SICORP CONCERT Kickoff meeting online, Innovative UV-LED applications to drinking water and wastewater treatment systems for sustainable water management in future communities, 2020.6.5
Kumiko Oguma, UV Disinfection: It's Achievements and Forefronts with focus on UV-LEDs, International UV Association (IUVA) Asia Symposium. Bangkok, Thailand Nov 18, 2019
Kumiko Oguma, Toward Safe, Stable and Sustainable Water Supply in Asia, 1st Symposium of JSPS Core-to–Core Program “Center of Excellence in Health Risk Assessment for Adaptation to Climate Change”. November 11-12, 2019. Manila, The Philippines.
Kumiko Oguma, Toward Sustainable Water Use in Asia, Special Lecture series, University of Toronto. Toronto, Canada. October 24, 2019
SAWANGJANG, Benyapa, Assessment of Fluoride Intake from Rice Consumption by Using Tap Water Containing Fluoride for Rice Soaking Water, WET2019, 2019.
Kumiko Oguma. Sustainable Water Use: A Future Perspective. UNIDO Workshop. Tokyo, 8 April 2019.
Benyapa, SAWANGJANG and Satoshi TAKIZAWA, Estimation of Factors Affecting Water Consumption in a Fluoride Contamination Region at Buak Khang Sub-district, Chiang Mai Province, Thailand, Japan Society on Water Environment, The Water and Environment Technology Conference 2018, Matsue, 14th-15th July, 2018.
Kumiko Oguma, Inactivation of Pseudomonas aeruginosa, Legionella pneumophila and Common Indicator Microorganisms by UV-LEDs at Different Wavelengths, IUVA 2017 World Congress & Exhibition, Dubrovnik, Croatia, September 17-20, 2017
B. Guragai, S. Takizawa, T. Hashimoto, K. Oguma. Novel method for measuring household water consumption under intermittent water supply. 9th IWA Specialist Conference on Efficient Use and Management of Water, Bath, United Kingdom, July, 2017.

Kumiko Oguma, Water Quality Deterioration in Drinking Water Supply Systems in Hanoi, The 12th International Symposium on Southeast Asian Water Environment (SEAWE12), Hanoi, Vietnam, Nov 28-Nov 30, 2016.

Bibas Guragai, Satoshi Takizawa and Kumiko Oguma, Consumers’ perception of intermittent water supply in Kathmandu Valley, The 12th International Symposium on Southeast Asian Water Environment (SEAWE12), Hanoi, Vietnam, Nov 28-Nov 30, 2016.

Kumiko Oguma, Small water systems in Japan: current status and technical challenges for the future, The 10th International Symposium on Water Supply Technologie, Kobe, July, 2015

Kumiko OGUMA, Surapong RATTANAKUL, Validation of a UV-LED disinfection apparatus and its application to microorganisms in water, 3rd Water Research Conference, Shenzhen, China, January 2015

Surapong RATTANAKUL, Kumiko OGUMA, Satoshi TAKIZAWA, Sequential and simultaneous applications of UV and chlorine for adenovirus inactivation, 3rd Water Research Conference, Shenzhen, China, January 2015

Kumiko Oguma, Water quality changes in water supply network and household storage, Workshop on Water Resources and Water Supply in Hanoi, Hanoi, Vietnam, March 2015.

AyakoFunabiki
, Keisuke Kuroda, Takeshi Hayashi, Tran Thi Viet Nga, and Satoshi Takizawa, Delta initiation and accumulation curves of deltaic sediments in the Song Hong (Red River) delta, northern Vietnam. Abstracts
for IGCP 581-Evolution of Asian River Systems, Hanoi, Vietnam. (November 12, 2013, Hanoi, Vietnam)

Takeshi Hayashi, Keisuke Kuroda, Do Thuan An, Satoshi Takizawa and Tran Thi Viet Nga, Seasonal fluctuation of stable isotopes of pond and groundwater in a suburban area of Hanoi city, Viet Nam, Japanese Association of
Hydrological Sciences Annual Meeting (October 2013, Chiba)

AthitPhetrak, JenyukLohwacharin, Hiroshi Sakai, Michio Murakami, Kumiko Oguma and Satoshi Takizawa (2013.9.9) Simultaneous Removal of Dissolved Organic Matter and Bromide from Drinking Water Source by Anion Exchange Resins for Controlling Disinfection By-Products, 5th IWA-Aspire Conference, International Water Association, Daejeon, Korea

Athit Phetrak, Jenyuk Lohwacharin, Hiroshi Sakai, Michio Murakami, Kumiko Oguma, Satoshi Takizawa, (2013.10.2). Removal of Disinfection by-Products Precursors from Low-SUVA by Anion Exchange Resins. NOM5 IWA Specialist Conference, Natural Organic Matter Research, Perth, Australia.

Chunmei Yang, Satoshi Takizawa, Shuili Yu, Hiroshi Sakai, Michio Murakami, Kumiko Oguma, Fangbo Zhao, Hee-Deung Park (2013.9.10) Characterization of DOM in Drinking Water Sources in the Yangtze River Delta, China, 5th IWA-Aspire Conference, International Water Association, Daejeon, Korea

Chunpeng Zhang, Hiroshi Sakai, Jenyuk Lohwacharin, Kumiko Oguma, Satoshi Takizawa (2013.6.17-19) Effects of algogenic organic matter on aggregation of TiO2 nano particles, International Water Association, 8th IWA Specialist Conference on Assessment and Control of Micropollutants/Hazardous Substances in Water, Zurich, Switzerland

Hideki Nakazawa, Satoshi Takizawa, Hiroshi Sakai, Jenyuk Lohwacharin, Thammarat Koottatep (2013.11.22) Reduction of Energy Consumption by Introducing Directly Connected Water Supply System in Selected Area of Thailand, 6th ACEC &AEEC conference, Bangkok, Thailand

Hiroshi Sakai, Koji Kosaka, Satoshi Takizawa (2013.9.24) Degradation of N-Nitrosodimethylamine (NDMA) by KrCl and Xenon-fluorescent Excimer UV Lamp, IOA-IUVA, 7th World Congress, Las Vegas, USA

J. Lohwacharin, A. Phetrak, K. Fujimura, H. Sakai and S. Takizawa, Effect of Backwash Period on Removal of DOM and DON by Pilot-Scale Biologically Activated Carbon Filters, Proceedings of the 5th IWA NOM5 conference, Perth, Australia, October, 2013 (Oral presentation).
J. Lohwacharin, A. Phetrak, K. Oguma and S. Takizawa, Flocculation of High-Turbidity Surface Water by Magnetic Particles, Proceedings of the 5th IWA-Aspire Conference & Exhibition, 09D3-4, Daejeon, S. Korea, September, 2013 (Oral presentation).

James Bolton and Kumiko Oguma "A Mathematical Model to Determine the Fluence Rate Distribution in a UV Reactor Containing Ultraviolet Light-Emitting-Diodes", World congress of International Ozone Association and International Ultraviolet Association, Las Vegas, September, 2013

Keisuke Kuroda and Satoshi Takizawa (2013) Hydrogeological factors affecting PPCPs and PFAAs in aquifers: Why the concentrations of groundwater in Tokyo could be higher than those of secondary effluent? Proceedings of IWA Micropol & Ecohazard 2013, pp.212-213 (Zurich, June 2013).

Keisuke Kuroda, Takeshi Hayashi, Naoko Watanabe, Kumiko Oguma, Tran Thi Viet Nga and Satoshi Takizawa (2013) Influence of Pond Seepage on Groundwater Pollution by Arsenic in Hanoi, Viet Nam, Proceedings of Environmental Engineering Research (Sapporo, November 2013)

Kumiko Oguma, Ryo Kita, Hiroshi Sakai, Michio Murakami and Satoshi Takizawa (2013.9.24) Evaluation of Water Disinfection Systems using UV Light Emitting Diodes, IOA-IUVA, 7th World Congress, Las Vegas, USA

Satoshi Takaki, Satoshi Takizawa, Hiroshi Sakai, Kumiko Oguma (2013.3.11) Temperature Effects on Filtration of Protein Solution through Ceramic MF Membrane、日本水環境学会、第47回日本水環境学会年会、大阪府

ZHANG Chunpeng, SAKAI Hiroshi, LOHWACHARIN Jenyuk, OGUMA Kumiko, TAKIZAWA Satoshi (2013.3.11) Effects of Algogenic Organic Matter on Aggregation of TiO2 Nanoparticles、日本水環境学会、第47回日本水環境学会年会、大阪府

Michio Murakami, Nguyen Van Huy, Hiroshi Sakai, Kumiko Oguma, Koji Kosaka, Mari Asami, Satoshi Takizawa: Occurrence and formation potential of N-nitrosodimethylamine in groundwater and rivers in metropolitan Tokyo, Proceedings of Micropol & Ecohazard 2011, in press. (Sydney, 2011.July)

K. Kuroda, M. MurakamiM, K. Oguma, H. Takada, S. Takizawa: Occurrence and sources of PFCs in groundwater in Tokyo, Proceedings of Micropol & Ecohazard 2011, in press. (Sydney, 2011.July)

Hiroshi Sakai, Tatsuro Takamatsu, Kumiko Oguma, Michio Murakami, Koji Kosaka, Mari Asami, Satoshi Takizawa : Influence of Nitrate on UV-degradation of N-nitrosodimethylamine (NDMA), Singapore International Water Week 2010, S3.2 (Singapore, 2010.June)
Keisuke Kuroda, Tetsuo Fukushi, Michio Murakami, Kumiko Oguma, Hideshige Takada and Satoshi Takizawa : Pharmaceuticals as markers of sewage pollution in groundwater in Tokyo, Proceedings of 2009 American Water Works Association Water Quality Technology Conference, ST4-5. (Seattle, 2009.11) [oral presentation]

K. Kuroda, T. Fukushi, M. Murakami, K. Oguma, H. Takada and S. Takizawa : Anthropogenic gadolinium and pharmaceuticals as tracers of groundwater contamination in Tokyo, Proceedings of Micropol & Ecohazard 2009, pp86-87. (San Francisco 2009.6) [oral presentation]



Kumiko Oguma, Satoshi Takizawa and Thuong Thi Nguyen : A perspective of communicating microbial
health risks based on surveys in Asian water environment, Proceedings of The 6th International
Symposium on Southeast Asian Water Environment, pp.253-260. (Bandung 2008.10)


Takizawa S. and Murakami M., Groundwater contamination in Asian Cities ? Public health impact and tools for sources identification, Expert meeting on groundwater management, Tokyo, March 2008.

Takeda, T., Wongrueng, A., Takizawa, S., Choompolkul, W., Chaimongkol, S., Wattanachira, S., Assessment of fluoride intake, excretion, and health effects in CHaing Mai Basin, Thailand, Proceedings of the International Symposium on Southeast Asian Water Environment, Vol. 5, pp. 9-15, 2007.

Wongrueng, A., Matsui, Y., Takizawa, S., Wattanachira, S., Groundwater defluoridation by Ultra Low Pressure Reverse Osmosis Membrane, Proceedings of the International Symposium on Southeast Asian Water Environment, Vol. 5, pp. 160-167, 2007.

Prasetiati, M. A. N., Takizawa, S., Chemical reduction of nitrate by nanosclae zero valent iron, Proceedings of the International Symposium on Southeast Asian Water Environment, Vol. 5, pp. 268-275, 2007.

Takeda, T., Wongrueng, A., Takizawa, S., Choompolkul, W., Chaimongkol, S., Wattanachira, S., Estimation of fluoride intake sources and fluorosis among the population living in the Chiang Mai Basin, Proceedings of the XXVIIth Conference of the International Society for Fluoride Research, pp.12-13, Beijing, China Oct. 2007.

Kitajima, M., K. Matsubara, N.T.V. Ha, E. Haramoto, H. Katayama, S. Takizawa and S. Ohgaki. Microbial contamination of raw vegetable and drinking water in Ho Chi Minh city, Viet Nam. Proceedings of the 3rd International Symposium on the Development of Water Resource Management System in Mekong Watershed. (7th December 2006, Bangkok), pp. 19-26, 2006.

Matsubara, K., Phanuwan, C., Nguyen, T.V. Ha, Haramoto, E., Katayama, H., Takizawa, S., and Ohgaki, S., Noroviruses and Faecal Contamination in Saigon River and Urban Canals in Ho Chi Minh City, Vietnam., International Symposium on Southeast Asian Water Environment, Vol. 4, 2006 301-308, 2006.

Matsui, Y., Takeda, T., Takizawa, S., Wongrueng, A., Wattanachira, S., Application of nanofiltration to fluoride removal from groundwaters in Chiang Mai Basin, Thailand, 32nd WEDC International Conference, Colombo, Sri Lanka, Nov. 2006.

Nguyen, T. V. Ha, Takizawa, S., Environmental Policy on Fish Cage Culture and Its Impact on Water Quality in Dau Tieng Reservoir, Vietnam, Proceedings of ENERGY, ENVIRONMENT, ECOSYSTEMS, SUSTAINABLE DEVELOPMENT (EEESD'06), July 11-13, Athens, Greece

Quach, T. T. and Thuy, Takizawa, Effects of chemical treatment of activated carbon on membrane fouling in PAC-MF system, Proceedings of SCE06, American Waterworks Association, San Antonio, 2006. 6.

Quach, T. T. Thuy, Takizawa, S., Katayama, H., Ohgaki. S, Interactions of Chemical-treated Activated Carbon, Multivalent Cations and Organic Matter in Membrane Fouling, Membrane Science and Technology Symposium, Nanyang Technological University, Singapore, 2006.4.

Tran, T. V. N and Takizawa, S., Natural Occurrence of arsenic in the organic-rich aquifer in Hanoi
 City: sources and mobilization processes, Proceedings of the Second International Symposium on Southeast Asian Water Environment, pp. 79-86 (2004)

Nguyen, T., Takizawa, S., Nguyen, P. D., Bui, D. T., Oguma, K., Katayama, H., Water pollution in inner-city canals in Ho Chi Minh City, Viet Nam, Proceedings of the Second International Symposium on Southeast Asian Water Environment, pp. 389-396 (2004)

Sthiannopkao, S., Takizawa, S., and Wirojanagud, W., Effect of soil erosion on water quality and water uses in the upper Phong Watershed, Proceedings of the 8th International Conference on Diffuse/Nonpoint Pollution, on CD-Rom, Kyoto, October 2004.

Oguma, K., Taira, R., Thuong, T., Thuong, N., Thuy, Q. T., Truong, B. D., Dan, N. P., Katayama, H., and Takizawa, S., Fecal Pollution of Urban Streams due to Rapid Urbanization: Case studies in Suburban Tokyo and Ho Chi Minh City, Proceedings of the 8th International Conference on Diffuse/Nonpoint Pollution, on CD-Rom, Kyoto, October 2004.

Khatiwada, NR; Takizawa, S.; Tran, T.V.N, Holistic approach for urban water management in developing countries, , IWA World Water Congress, Melbourne, Australia, April 7-12, 2002

Inoue, M., Tran, T. V. N., Khatiwada, N. R. and Takizawa,S., Groundwater contamination due to arsenic, iron, ammonia and organic matter in Hanoi, O-10, 10th International Symposium on Natural and Industrial Arsenic Japan, Tokyo, Nov. 2001

Tran Thi Viet Nga, Masafumi Inoue, Nawa Raj Khatiwada, and Satoshi Takizawa, Groundwater contamination due to arsenic, iron, ammonia and organic matter in Hanoi, Vietnam, Proceedings of IWA World Water Congress, Berlin, October 2001

Kim, S-H., Katayama, H., Takizawa, S. and Ohgaki, S., Removal of Coliphage Qb and Organic Matter from Effluent by Powdered Activated Carbon-Microfiltration (PAC-MF) Process, Proceedings of International Conference on Membrane Technology for Wastewater Reclamation and Reuse, pp.211-219, Tel Aviv (2001)

Kaiya, I., Itoh, Y., Takizawa, S., Fujita, K., and Tagawa, T., Fouling Analysis in membrane Process for Drinking Water Production, Proceedings of International Specialized Conference on Membrane Technology in Environmental Management, pp.107-114, Tokyo, 1999.11

Takizawa, S., Komatsu, K., and Vasanthadevi, Aerobic Sludge Digestion by Immobilized Bacteria, Proc. International Workshop BIOENCAPSULATION VI, 1997

A. Vasanthadevi, S. Takizawa and K. Fujita: Nitirogen Removal from Domestic Wastewater Using Immobilized Pellets, Proc. Annual Conf. of JSCE, 2B, 1106-1107, 1995




Poster presentations

Takeshi Hayashi, Keisuke Kuroda, Do Thuan An, Satoshi Takizawa, Tran Thi Viet Nga, Analysis of groundwater recharge mechanism using hydrogen and oxygen isotope tracers, The 3rd Symposium on Environmental
Isotope Studies (December 2013, Kyoto)

Kuroda K., Fukushi T., Takizawa S., Murakami M., Takada H., Nakada N., Aichi M., Hayashi T., Tokunaga T., Sources and influencing factors of groundwater contamination in Tokyo metropolitan area, Proceedings of the 6th International Groundwater Quality Conference, Western Australia, December 2007.

Wongrueng, A., Matsui, Y, Takizawa., S., Effect of concentration polarization on fluoride removal by ULPRO membrane, Proceedings of 44th Environmental Engineering Forum
pp.51-532007

Sigrist, M., Takizawa, S., Ha, NTV., Tokunaga, T., Grounwater contamination in Ho Chi Minh City, Vietnam, Proceedings of 44th Environmental Engineering Forum
pp.191-1932007

Kuroda K., Ooka R., Ichinose T., Takizawa S., Cooling Tokyo: effectiveness and environmental impacts of spraying groundwater to mitigate urban heat-island, Proceedings of 16th Annual Meeting of the groundwater Resources Association of California, p. 47, September 2007.


Copyright (C) 2009 Urban Water Systems Laboratory / Last updated - 2018.04.17