Ryusei Ito

J-GLOBAL         Last updated: Oct 1, 2018 at 21:33
 
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Name
Ryusei Ito
Affiliation
Hokkaido University
Section
Faculty of Engineering

Research Areas

 
 

Awards & Honors

 
Dec 2017
Morphological, chemical and electrochemical carbon based and nobel metal electrodes characterization for use in water electrochemical disinfection, Springer best paper award, The 1st Euro-Mediterranean Conference for Environmental > Integration (EMCEI)
Winner: Guizani Mokhtar, Kento Yajima, Ryusei Ito, Toshikazu Kawaguchi, Naoyuki Funamizu
 

Published Papers

 
Mokhtar Guizani, Mokhtar Guizani, Takeru Maeda, Ryusei Ito, Naoyuki Funamizu, Naoyuki Funamizu
Journal of Water and Environment Technology   16 63-71   Jan 2018
© 2018 Japan Society on Water Environment. Synthesis of magnetic nanoparticles (MNPs) attracted the interest of many researchers for many applications. Among the applications of interest is their potential use as a draw solution in forward osmosis...
Reem Abukmeil, Mokhtar Guizani, Ryusei Ito, Naoyuki Funamizu
RECENT ADVANCES IN ENVIRONMENTAL SCIENCE FROM THE EURO-MEDITERRANEAN AND SURROUNDING REGIONS, VOLS I AND II   653-657   2018   [Refereed]
Guizani Mokhtar, Yajima Kento, Kawaguchi Toshikazu, Ito Ryusei, Funamizu Naoyuki
RECENT ADVANCES IN ENVIRONMENTAL SCIENCE FROM THE EURO-MEDITERRANEAN AND SURROUNDING REGIONS, VOLS I AND II   933-935   2018   [Refereed]
Ito Ryusei, Tanie Mei, Ushijima Ken, Nilawati Dewi, Sintawardani Neni, Funamizu Naoyuki
DESALINATION AND WATER TREATMENT   91 300-304   Oct 2017   [Refereed]
Benedicte Carolle Wind Yam Nikiema, Ryusei Ito, Mokhtar Guizani, Naoyuki Funamizu
Journal of Water and Environment Technology   15 163-173   Jan 2017
© 2017 Japan Society on Water Environment. Urine is rich in nutrients and can be applied as a fertilizer. The limitation on the application is the transportation cost for the farmlands. The cost estimation required 80% of the volume reduction for ...
Hijikata N, Tezuka R, Kazama S, Otaki M, Ushijima K, Ito R, Okabe S, Sano D, Funamizu N
Journal of environmental management   181 721-727   Oct 2016   [Refereed]
Kabore Steve, Ito Ryusei, Funamizu Naoyuki
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   4(2) 2510-2517   Jun 2016   [Refereed]
Darimani HS, Ito R, Maiga Y, Sou M, Funamizu N, Maiga AH
Environmental technology   37(8) 920-928   Apr 2016   [Refereed]
ITO Ryusei, FUJIOKA Minami, FUNAMIZU Naoyuki
Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)   72(7) III_227-III_233   2016
 Cow urine is not reused as liquid fertilizer which can be an alternative secure phosphate resource. This paper aims to confirm the validity of a simulation model for precipitation stoichiometry of precipitations by equilibrium calculation, t...
Ushijima K, Tanaka E, Suzuki LY, Hijikata N, Funamizu N, Ito R
Environmental technology   36(20) 2603-2609   Oct 2015   [Refereed]
Tsutsui H, Fujiwara T, Inoue D, Ito R, Matsukawa K, Funamizu N
Waste management (New York, N.Y.)   42 10-16   Aug 2015   [Refereed]
Darimani Hamidatu S., Ito Ryusei, Dakoure Mariam Sou, Funamizu Naoyuki, Yacouba Hamma, Maiga Amadou H.
JOURNAL OF RESIDUALS SCIENCE & TECHNOLOGY   12(2) 43-51   Apr 2015   [Refereed]
S. Fukahori, S. Fukahori, T. Fujiwara, T. Fujiwara, R. Ito, R. Ito, N. Funamizu, N. Funamizu
Water Science and Technology   72 238-244   Jan 2015
© IWA Publishing 2015. The combination of nitrogen recovery and pharmaceutical removal processes for livestock urine treatment were investigated to suppress the discharge of pollutants and recover nitrogen as resources. We combined methylene urea ...
Darimani Hamidatu S., Ito Ryusei, Sossou Seyram K., Funamizu Naoyuki, Amadou Maiga H.
COMPOST SCIENCE & UTILIZATION   23(3) 164-173   2015   [Refereed]
Ushijima Ken, Funamizu Naoyuki, Nabeshima Takako, Hijikata Nowaki, Ito Ryusei, Sou Mariam, Maiga Amadou H., Sintawardani Neni
WATER POLICY   17(2) 283-298   2015   [Refereed]
伊藤竜生, 船水尚行
環境工学研究フォーラム講演集   51st 166-168   Dec 2014
USHIJIMA Ken, TANAKA Erina, HIJIKATA Nowaki, ITO Rusei, FUNAMIZU Naoyuki
Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)   69(7) III_83-III_89   Nov 2013
 This study aims to evaluate the performance of Slanted Soil System (1) under water use condition in rural family in Sahel Africa, and (2) using soil which containing compalatively wider range of particle size than former studies. Experimenta...
Ito R, Takahashi E, Funamizu N
Environmental technology   34(17-20) 2809-2815   Sep 2013   [Refereed]
S. Fukahori, S. Fukahori, T. Fujiwara, T. Fujiwara, N. Funamizu, N. Funamizu, K. Matsukawa, K. Matsukawa, R. Ito
Water Science and Technology   67 319-325   Feb 2013
The adsorptive removal of seven sulfonamide antibiotics using the high-silica zeolite HSZ-385 from distilled water, synthetic urine and real porcine urine was investigated. The pH greatly affected the adsorption efficiency, and the amounts of all ...
Ushijima Ken, Ito Kango, Ito Ryusei, Funamizu Naoyuki
ECOLOGICAL ENGINEERING   50 62-68   Jan 2013   [Refereed]
Fukahori S, Fujiwara T, Ito R, Funamizu N
Chemosphere   89(3) 213-220   Sep 2012   [Refereed]
Muhammad Masoom Pahore, K. Ushijima, R. Ito, N. Funamizu
Environmental Technology   33 229-235   Jan 2012
This study was carried to assess the effect of a mixture of salts, urea and creatinine on water evaporation from urine using an on-site volume reduction system in long-term experiments. Subsequently, the fate of nitrogen during volume reduction of...
Fukahori Shuji, Fujiwara Taku, Ito Ryusei, Funamizu Naoyuki
DESALINATION   275(1-3) 237-242   Jul 2011   [Refereed]
Pahore MM, Ito R, Funamizu N
Environmental technology   32(9-10) 953-970   Jul 2011   [Refereed]
牛島健, 吉川宙希, HUELGAS Aileen P, 伊藤竜生, 船水尚行
環境工学研究論文集   47 719-726   Nov 2010
深堀秀史, 藤原拓, 伊藤竜生, 船水尚行
環境工学研究フォーラム講演集   47th 242-244   Nov 2010
Pahore MM, Ito R, Funamizu N
Environmental technology   31(4) 399-408   Apr 2010   [Refereed]
ITO Ryusei, YAMAZAKI Hiroki, Funamizu Naoyuki
ENVIRONMENTAL ENGINEERING RESEARCH   45 481-486   Nov 2008
The composting toilet with low operation and production cost was developed to evaluate its operation performance and cost. It is a kind of urine diverting toilet with hand mixing device for no power requirement. As a result, weight of composting m...
ONODA Yu, ITO Ryusei, SATO Nobuyuki, ITO Mitsuaki, FUNAMIZU Naoyuki
ENVIRONMENTAL ENGINEERING RESEARCH   44 321-329   Nov 2007
In this study, we have developed a trace analytical method for pharmaceuticals measurement in biotoilet compost samples by LC/MS/MS system. Firstly, we tried to create a high-sensitive and simultaneous analytical method with LC/MS/MS for 15 pharma...
Ito Ryusei, Funamizu Naoyuki
ENVIRONMENTAL ENGINEERING RESEARCH   44 339-345   Nov 2007
Natural hormones, such as estrogenic compounds, are too hard to control, because they are contained in human waste, resulting in requirement of appropriate treatment. However, there is less information about fate of them in composting process of h...
Ito Ryusei, Ogawa Shingo, Funamizu Naoyuki
ENVIRONMENTAL ENGINEERING RESEARCH   43 437-442   Nov 2006
Drying of the mixture of human waste and sawdust is an essential process for the dry composting toilet system, because moisture content, that is an important factor for biodegradation process, should be kept around 65%. The drying rate is required...
Fukunaka T, Yaegashi Y, Nunoko T, Ito R, Golman B, Shinohara K
International journal of pharmaceutics   310(1-2) 146-153   Mar 2006   [Refereed]
Narita H, Lopez Zavala MA, Iwai K, Ito R, Funamizu N
Water research   39(19) 4693-4704   Nov 2005   [Refereed]
Ryusei Ito, Boris Golman, Kunio Shinohara
Chemical Engineering Science   60 5415-5424   Oct 2005
In order to design and control the release pattern of an active solid component, we investigated the release characteristics of core particles coated with multiple layers of fine permeable particles surrounding soluble particles dispersed in layer...
伊藤竜生, 西村学, GOLMAN B, 篠原邦夫, 福中唯史
化学工学論文集   31(1) 31-34   Jan 2005
The dissolution rate of medical tablets has hitherto been measured by repeating dissolution tests, which require considerable time to get experimental confirmation of dissolution characteristics. Thus, it has not been investigated from the viewpoi...
伊藤竜生, 向井淳, GOLMAN B, 篠原邦夫
化学工学論文集   30(6) 840-843   Nov 2004
Particles coated with sprayed liquid in a fluidized bed might be kept at relatively high temperature for a long period during drying with high-temperature air. Materials with a low temperature of decomposition should, therefore, be treated for a s...
Ryusei Ito, Boris Golman, Kunio Shinohara
Journal of Chemical Engineering of Japan   37 496-502   Apr 2004
For precise control of the release rate for fertilizers, pharmaceuticals, etc., the release characteristics were investigated by preparing active core particles coated with multiple layers of insoluble but permeable particles dispersed inside impe...
Ryusei Ito, Boris Golman, Kunio Shinohara
Advanced Powder Technology   15 377-390   Jan 2004
A novel method was proposed for the sigmoidal release pattern of core material by dry-based coating of core particles with double layers of permeable particles over soluble particles dispersed in an impermeable wax. A mathematical model was constr...
Ito R, Golman B, Shinohara K
Journal of controlled release : official journal of the Controlled Release Society   92(3) 361-368   Oct 2003   [Refereed]
Ryusei Ito, Boris Golman, Kunio Shinohara
Journal of Chemical Engineering of Japan   36 676-682   Jun 2003
The effect of a porous structure formed after dissolution of fine particles dispersed in a coating layer was investigated on the release rate of core particle by random walk simulation. As a result, the release rate was described by the structure ...
Ito Ryusei, Maida Akiyo, Shinohara Kunio, Izawa Naoto
Journal of the Society of Powder Technology, Japan   40(5) 330-333   May 2003
Photo degradable drug powder was stabilized by dry coating drug agglomerates with UV protective powder with a high-shear mixer. As an example, pyridoxal phosphate (PLP) was used as the drug powder and titanium dioxide (TiO2) as a protec...
Ryusei Ito, Boris Golman, Kunio Shinohara
Journal of Chemical Engineering of Japan   35 40-45   Jan 2002
The dry based coating of core particles with soluble powder dispersed inside an impermeable layer of biodegradable wax was performed to control the release rate of core material. The mathematical model was developed to describe the release profile...
伊藤竜生, GOLMAN B, 長尾和真, 篠原邦夫
粉体工学会誌   38(12) 863-865   Dec 2001
伊藤竜生, LIANG H, 篠原邦夫
化学工学論文集   26(6) 898-900   Nov 2000
The possibility of particle coating in a solution is to be expected under such a condition that causes only heterogeneous nucleation. In a glass-water-CaCO3system, it is proven that there is a certain range of the solution concentrations for heter...

Books etc

 
Resource-Oriented Agro-sanitation Systems Concept, Business Model, and Technology
Naoyuki Funamizu (Part:Contributor, Fate of Water in Composting Toilet, Recovery of Nitrogen and Phosphorus from Urine)
Springer   2019   

Conference Activities & Talks

 
INACTIVATION OF SAP IN DISPOSABLE DIAPERS BY ACID SOLUTIONS
Haruna ONODERA, Ryusei ITO, Naoyuki FUNAMIZU, Koichi YAMAKI, Takayoshi KONISH
6th International Dry Toilet Conference   22 Aug 2018   
FOULANT ANALYSIS OF FO MEMBRANE USED FOR URINE CONCENTRATION
Takato Matsuda, Ryusei Ito, Guizani Mokhtar, Naoyuki Funamizu
6th International Dry Toilet Conference   22 Aug 2018   
PRODUCTION OF NITROGEN AND POTASSIUM FERTILIZERS FROM LIQUID WASTE OF CATTLE BARNS
Ryusei Ito, Minami Fujioka, Naoyuki Funamizu
6th International Dry Toilet Conference   22 Aug 2018   
AMMONIA DIFFUSION THROUGH A SEMIPERMEABLE MEMBRANE DURING FORWARD OSMOSIS PROCESS
Guizani Mokhtar, Hassan Hamidah, Nikiema Benedicte Carolle, Ito Ryusei, Funamizu Naoyuki
6th International Dry Toilet Conference   22 Aug 2018   
中慶史, 船水尚行, 伊藤竜生, 佐藤久, 高橋正宏
日本水環境学会年会講演集   9 Mar 2018   
LI Shuang, GUIZANI Mohktar, 伊藤竜生, 船水尚行, 川口俊一
電気化学会大会講演要旨集(CD-ROM)   23 Feb 2018   
李爽, MOHKTAR Guizani, 伊藤竜生, 船水尚行, 川口俊一
化学系学協会北海道支部冬季研究発表会(Web)   2018   
Modelling of reactions in a fixed bed reactor for phosphate recovery by scallop shell particles
Ito, R., Kaneko, S., Funamizu, N.
Conference on Small Water & Wastewater Systems and Resources Oriented Sanitation   22 Oct 2017   
伊藤竜生, 金子秀人, 船水尚行
日本水環境学会年会講演集   9 Mar 2017   
坪内築, 伊藤竜生, 船水尚行, 八巻孝一, 小西孝義
日本水環境学会年会講演集   9 Mar 2017   
Design of a forward osmosis unit for urine concentration and nutrient recovery
B. C.W. Nikiema, R. Ito, M. Guizani and N. Funamizu
6th Maghreb Conference on Desalination and Water Treatment   16 Dec 2016   
Modelling of reactions for phosphorus recovery from human urine by fixed bed reactor with scallop shell particles
Ryusei Ito, Shuto Kaneko, Naoyuki Funamizu
6th Maghreb Conference on Desalination and Water Treatment   16 Dec 2016   
Effect of F/U ratio on nitrogen release pattern of urea form from synthetic human urine
Hiroki Kobayashi, Ryusei Ito, Naoyuki Funamizu
6th Maghreb Conference on Desalination and Water Treatment   16 Dec 2016   
Design of solid fertilizer production process from dairy liquid waste
MINAMI Fujioka, Ryusei Ito, Naoyuki Funamizu
6th Maghreb Conference on Desalination and Water Treatment   16 Dec 2016   
Recovery of phosphate from human urine by shell particles of Mizuhopecten yessoensis
Ito, R., Kaneko, S., Funamizu, N.
The 13th IWA Leading Edge Conference on Water and Wastewater Technologies   13 Jun 2016   
Design of composting toilet for practical application in Burkina Faso
Kenta Yabui, Ken Ushijima, Ryusei Ito, Naoyuki Funamizu
5th Dry Toilet Conference   17 Aug 2015   
Survey of sanitation conditions in Burkina Faso for design of toilet
Ryusei Ito, Ken Ushijima, Nowaki Hijikata, Naoyuki Funamizu
5th Dry Toilet Conference   17 Aug 2015   
_Design of vegetable garden for income estimation toward to agro-sanitation business model, a case study in Burkina Faso
Nowaki Hijikata, Ken Ushijima, Ryusei Ito, Boukary Sawadogo, Naoyuki Funamizu
5th Dry Toilet Conference   17 Aug 2015   
Sulfonamide antibiotic removal and nitrogen recovery from synthetic urine by the combination of rotating advanced oxidation contactor and methylene urea synthesis process
S. Fukahori, T. Fujiwara, R. Ito, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Salt removal from urine fertilized agricultural fields by rainfall and plant uptake
T. Fujii, N. Hijikata, K. Ushijima, R. Ito, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Effect of formaldehyde/urea ratio on production rate ofmethylene urea
S. Kabore, R. Ito, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Grey water treatment by slanted soil system in terms ofphytotoxicity
K. Ushijima, N. Hijikata, E. Tanaka, N. Funamizu, R. Ito
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Adequate handling conditions of composting toilets using calcium lime and ash evaluated by microbiological safety of end product
N. Hijikata, R. Tezuka, S. Kazama, M. Ohtaki, D. Sano,K. Ushijima, R. Ito, S. Okabe, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Effect of burned shell dosage on crystal species in synthetic cow rrine
S. Kaneko, R. Ito, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Production of calcium phosphate on the shell particles of Mizuhopecten yessoensis in urine
R. Ito, N. Funamizu
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
Microbial Risk Assessment Associated with Post- treatment of compost from the composting toilet
H. S. Darimani, R. Ito, M. Sou/Dakoure, N. Funamizu, H. Yacouba, A. H. Maiga
9th IWA International Symposium on Waste Management Problems in Agro-Industries   24 Nov 2014   
筒井裕文, 松川和嗣, 藤原拓, 伊藤竜生, 船水尚行
日本水環境学会年会講演集   17 Mar 2014   
牛島健, 野夫井謙太, 土方野分, 伊藤竜生, 船水尚行
日本水環境学会年会講演集   18 Mar 2011   
深堀秀史, 藤原拓, 福垣内暁, 船水尚行, 伊藤竜生
日本水環境学会年会講演集   18 Mar 2011   
深堀秀史, 藤原拓, 伊藤竜生, 船水尚行
日本水環境学会シンポジウム講演集   8 Sep 2010   
伊藤竜生, 松尾紀子, 船水尚行
土木学会年次学術講演会講演概要集(CD-ROM)   1 Sep 2007   
船水尚行, 伊藤竜生, 横田光正, 大瀧雅寛, 蛯江美孝, 小野田優
研究領域「水の循環系モデリングと利用システム」第4回領域シンポジウム(平成14年度採択研究課題終了シンポジウム)講演要旨集 平成19年   2007   
船水尚行, 伊藤竜生, 横田光正, 大瀧雅寛, 蛯江美孝, 小野田優
研究領域「水の循環系モデリングと利用システム」第4回領域シンポジウム(平成14年度採択研究課題終了シンポジウム)講演要旨集 平成19年   2007   
船水尚行, 伊藤竜生, 野口友寛
残留塩素に依存しない水道の水質管理手法に関する研究 平成18年度 総括・分担研究報告書   2007   
福田美意, 伊藤竜生, 船水尚行, 横田光正
日本水環境学会年会講演集   15 Mar 2006   
伊藤竜生, 山県一平, 船水尚行
日本水環境学会年会講演集   15 Mar 2006   
伊藤竜生, 船水尚行, 大瀧雅寛, 蝦江美孝, 田中伸幸, 横田光正
研究領域「水の循環系モデリングと利用システム」第3回領域シンポジウム(平成15年度採択研究課題中間シンポジウム、平成13年度採択研究課題終了シンポジウム)講演要旨集 平成18年   2006   
伊藤竜生, 船水尚行
日本水環境学会年会講演集   17 Mar 2005   
布子拓, 伊藤竜生, GOLMAN B, 篠原邦夫
化学工学論文集   20 Jan 2004   
Encapsulated particles for controlled release generally show a diffusion-type release pattern. However, a release curve of sigmoid type could be useful for various applications. Therefore, a structural bed was prepared by filling voids among encap...
布子拓, 伊藤竜生, GOLMAN B, 篠原邦夫
化学工学会秋季大会研究発表講演要旨集   12 Aug 2003   
伊藤竜生, GOLMAN B, 篠原邦夫
化学工学会秋季大会研究発表講演要旨集   18 Aug 2002   
伊藤竜生, GOLMAN B, 篠原邦夫
化学工学会秋季大会研究発表講演要旨集   31 Aug 2001   

Social Contribution

 
Improving Sustainable Water and Sanitation Systems in Sahel Region in Africa
[TV or radio appearance]  Yamanashi University  Global Expansion of Smart Water Treatment System for Sustainable Water Management ‒Locally-fitted, Compact and Decentralized Water Treatment and Management Technologies for Asia and Africa‒  5 Dec 2015