Takahiro Fujioka

J-GLOBAL         Last updated: Jun 8, 2019 at 13:33
 
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Name
Takahiro Fujioka
E-mail
tfujiokanagasaki-u.ac.jp
Affiliation
Nagasaki University
Section
Graduate school of Engineering
Research funding number
20759691
Google Analytics
UA-64863751-1
ORCID ID
0000-0001-9111-5628

Research Areas

 
 

Academic & Professional Experience

 
May 2015
 - 
Today
Associate Professor, Graduate School of Engineering, Nagasaki University
 
Dec 2013
 - 
Apr 2015
Research Fellow (B), University of Wollongong
 
Jul 2009
 - 
Dec 2010
Mitsubishi Electric Co.
 
Apr 2002
 - 
Dec 2005
Fuji Electric Systems Co., Ltd.
 

Education

 
Dec 2010
 - 
Jul 2014
Civil, Mining and Environmental Engineering, Engineering and Information Sciences, University of Wollongong
 
Oct 2007
 - 
Apr 2009
Water Supply Engineering, UNESCO-IHE
 
Apr 2000
 - 
Mar 2002
Hiroshima University
 
Apr 1996
 - 
Mar 2000
Hiroshima University
 

Misc

 
Takahiro Fujioka, Sandrine Boivin
Separation and Purification Technology   226 8-12   Nov 2019   [Refereed]
© 2019 Elsevier B.V. The safety of recycled water for potable water reuse can be enhanced by improving the removal of pathogenic microorganisms through reverse osmosis (RO)membrane. The present study aimed to identify the causes of the passage of ...
Takahiro Fujioka, Tetsuro Ueyama, Fang Mingliang, Menu Leddy
Chemosphere   229 509-514   Aug 2019   [Refereed]
© 2019 Elsevier Ltd Microbiological risks associated with drinking water can be minimized by providing enhanced integrity monitoring of bacterial removal by water treatment processes. This study aimed to evaluate the efficacy of real-time bacteri...
Takahiro Fujioka, Ryo Makabe, Naomichi Mori, Shane A. Snyder, Menu Leddy
Science of the Total Environment   667 540-544   Jun 2019   [Refereed]
© 2019 Elsevier B.V. Safety of potable reuse can be enhanced by improved water quality monitoring techniques for assessing water treatment processes. This study evaluated the efficacy of online bacterial counting for continuous monitoring of rever...
Takahiro Fujioka, Anh T. Hoang, Tetsuro Ueyama, Long D. Nghiem
Environmental Science: Water Research and Technology   5 239-245   Feb 2019   [Refereed]
© 2019 The Royal Society of Chemistry. Water quality and reliability during potable reuse can often depend on the performance of the reverse osmosis (RO) membrane treatment for the attenuation of microbial contaminants. This pilot-scale study aime...
Thanh Tin Nguyen, Xuan Thanh Bui, Bao Trong Dang, Huu Hao Ngo, Deokjin Jahng, Takahiro Fujioka, Shiao Shing Chen, Quoc Tuc Dinh, Cong Nguyen Nguyen, Phan Thai Vy Nguyen
Bioresource Technology   573-580   Feb 2019   [Refereed]
© 2018 Elsevier Ltd This study aimed to evaluate treatment performance and membrane fouling of a lab-scale Sponge-MBR under the added ciprofloxacin (CIP) dosages (20; 50; 100 and 200 µg L −1 ) treating hospital wastewater. The results showed that...
Takahiro Fujioka, Hitoshi Kodamatani, Long D. Nghiem, Takuji Shintani
Environmental Science and Technology Letters   6 44-48   Jan 2019   [Refereed]
© 2018 American Chemical Society. Reliable and adequate removal of small and uncharged trace organic chemicals, particularly N-nitrosodimethylamine (NDMA) that is carcinogenic and known to occur in treated effluent, is essential for implementing d...
Takahiro Fujioka, Hitoshi Kodamatani, Haruka Takeuchi, Hiroaki Tanaka, Long D. Nghiem
Environmental Science: Water Research and Technology   4 2021-2028   Dec 2018   [Refereed]
© 2018 The Royal Society of Chemistry. Public health protection and cost effectiveness of potable reuse can be improved by providing reliable water quality assurance for removal of trace organic compounds (TOrCs) by reverse osmosis (RO) membranes....
Ronald Katalo, Tetsuji Okuda, Long D. Nghiem, Takahiro Fujioka
Environmental Science: Water Research and Technology   4 1604-1611   Oct 2018   [Refereed]
© The Royal Society of Chemistry. Coagulation using Moringa oleifera (MO), a natural coagulant, is an attractive approach in drinking water treatment to break away from conventional chemical coagulation using aluminium or iron salts. This study ai...
Takahiro Fujioka, Kha H. Nguyen, Anh Tram Hoang, Tetsuro Ueyama, Hidenari Yasui, Mitsuharu Terashima, Long D. Nghiem
International Journal of Environmental Research and Public Health   15    Sep 2018   [Refereed]
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Pre-concentration is essential for energy and resource recovery from municipal wastewater. The potential of forward osmosis (FO) membranes to pre-concentrate wastewater for subsequent bioga...
Takahiro Fujioka, Haruka Takeuchi, Hiroaki Tanaka, Hitoshi Kodamatani
Chemosphere   200 80-85   Jun 2018   [Refereed]
© 2018 Elsevier Ltd The security of recycled water quality in potable reuse can be enhanced by improving the credibility of reverse osmosis (RO) treatment for the removal of trace organic chemicals (TOrCs). This study evaluated the potential of on...
Hitoshi Kodamatani, Shannon L. Roback, Megan H. Plumlee, Kenneth P. Ishida, Hiroto Masunaga, Noboru Maruyama, Takahiro Fujioka
Journal of Chromatography A   1553 51-56   Jun 2018   [Refereed]
© 2018 Elsevier B.V. A newly developed, ion exchange-based inline pretreatment system was used to mitigate the effect of background constituents in natural water and treated wastewater to achieve rapid, reliable, and sensitive analysis of N-nitros...
Takahiro Fujioka, Anh T. Hoang, Hidenobu Aizawa, Hiroki Ashiba, Makoto Fujimaki, Menu Leddy
Environmental Science and Technology Letters   5 389-393   Jun 2018   [Refereed]
© 2018 American Chemical Society. Rigorous monitoring of microbial water quality is essential to ensure the safety of recycled water after advanced treatment for indirect and direct potable reuse. This study evaluated real-time bacterial monitorin...
Takahiro Fujioka, Brian E. O'Rourke, Koji Michishio, Yoshinori Kobayashi, Nagayasu Oshima, Hitoshi Kodamatani, Takuji Shintani, Long D. Nghiem
Journal of Membrane Science   554 301-308   May 2018   [Refereed]
© 2018 Elsevier B.V. The polyamide skin layer of reverse osmosis (RO) membranes was characterised using advanced and complementary analytical techniques to investigate the mechanisms underlying the permeation of contaminants of emerging concern in...
Haruka Takeuchi, Hiroaki Tanaka, Long D. Nghiem, Takahiro Fujioka
Environmental Science: Water Research and Technology   4 493-504   Apr 2018   [Refereed]
© 2018 The Royal Society of Chemistry. This study proposed a new approach to apply the steric pore-flow model to predict the rejection of eight N-nitrosamines and seven VOCs that are of great concern in potable water reuse through an RO membrane. ...
Takahiro Fujioka, Anh T. Hoang, Tetsuji Okuda, Haruka Takeuchi, Hiroaki Tanaka, Long D. Nghiem
International Journal of Environmental Research and Public Health   15    Apr 2018   [Refereed]
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. A new membrane fouling control technique using ozonated water flushing was evaluated for direct nanofiltration (NF) of secondary wastewater effluent using a ceramic NF membrane. Experiments...
Takahiro Fujioka, Kenneth P. Ishida, Takuji Shintani, Hitoshi Kodamatani
Water Research   131 45-51   Mar 2018   [Refereed]
© 2017 Elsevier Ltd Direct potable reuse is becoming a feasible option to cope with water shortages. It requires more stringent water quality assurance than indirect potable reuse. Thus, the development of a high-rejection reverse osmosis (RO) mem...
Takahiro Fujioka, Taketo Tanisue, Shannon L. Roback, Megan H. Plumlee, Kenneth P. Ishida, Hitoshi Kodamatani
Environmental Science: Water Research and Technology   3 1032-1036   Nov 2017   [Refereed]
Direct potable reuse requires stringent water quality assurance to protect public health. This study developed an online analytical technique - high-performance liquid chromatography followed by photochemical reaction and chemiluminescence detecti...
Takahiro Fujioka, Shunya Masaki, Hitoshi Kodamatani, Keisuke Ikehata
Current Pollution Reports   3 79-87   Jun 2017   [Refereed]
© 2017, Springer International Publishing AG. The ultraviolet (UV)-based advanced oxidation process (AOP) is a powerful technology commonly utilised in recent potable water reuse (PR) schemes. The AOP involves the generation of highly reactive fre...
Hitoshi Kodamatani, Yoshimi Iwaya, Makoto Saga, Keiitsu Saito, Takahiro Fujioka, Shigeo Yamazaki, Ryo Kanzaki, Takashi Tomiyasu
Analytica Chimica Acta   952 50-58   Feb 2017   [Refereed]
© 2016 Elsevier B.V. A novel method for the determination of secondary amines at the nanomolar level was developed. The method is based on the nitrosation reaction of secondary amines, with the generated N-nitrosamines being measured using an HPLC...
Moe Ma Ma Tin, George Anioke, Osamu Nakagoe, Shuji Tanabe, Hitoshi Kodamatani, Long D. Nghiem, Takahiro Fujioka
Separation and Purification Technology   189 170-175   Jan 2017   [Refereed]
© 2017 Elsevier B.V. The effectiveness of hypochlorite cleaning for fouling mitigation of a prototype chlorine-resistant nanofiltration (NF) membrane was assessed for direct filtration of a secondary treated effluent. The chlorine resistance and s...
Takahiro Fujioka, Hitoshi Kodamatani, Hidenobu Aizawa, Stephen Gray, Kenneth P. Ishida, Long D. Nghiem
Water Research   118 187-195   Jan 2017   [Refereed]
© 2017 Elsevier Ltd The impact of fouling substances on the rejection of four N-nitrosamines by a reverse osmosis (RO) membrane was evaluated by characterizing individual organic fractions in a secondary wastewater effluent and deploying a novel h...
Sultan K. Alharbi, Sultan K. Alharbi, William E. Price, Jinguo Kang, Takahiro Fujioka, Long D. Nghiem
Desalination and Water Treatment   57 29340-29351   Dec 2016   [Refereed]
© 2016 Balaban Desalination Publications. All rights reserved. The degradation of four pharmaceuticals, carbamazepine (CBZ), diclofenac (DCF), sulfamethoxazole (SMX) and trimethoprim (TMP) by ozonation was studied under a range of experimental con...
Takahiro Fujioka, Haruka Takeuchi, Hiroaki Tanaka, Long D. Nghiem, Kenneth P. Ishida, Hitoshi Kodamatani
Chemosphere   161 104-111   Oct 2016   [Refereed]
© 2016 Elsevier Ltd A fast and reliable analytical technique was evaluated and validated for determination of N-nitrosodimethylamine (NDMA) formation and rejection by reverse osmosis (RO) membranes in potable water reuse applications. The analytic...
Hop V. Phan, James A. McDonald, Faisal I. Hai, William E. Price, Stuart J. Khan, Takahiro Fujioka, Long D. Nghiem
International Biodeterioration and Biodegradation   113 49-56   Sep 2016   [Refereed]
© 2016 This study evaluated the performance of a side-stream ceramic nanofiltration membrane bioreactor (NF-MBR) system with respect to basic water quality parameters as well as trace organic contaminant (TrOC) removal efficiency. The results show...
Long D. Nghiem, Takahiro Fujioka
Emerging Membrane Technology for Sustainable Water Treatment   217-247   Mar 2016
© 2016 Elsevier B.V. All rights reserved. High-pressure membrane separation processes including reverse osmosis (RO) and nanofiltration (NF) have been widely used for drinking water purification and water recycling as well as for the removal of tr...
Takahiro Fujioka, Nagayasu Oshima, Ryoichi Suzuki, William E. Price, Long D. Nghiem
Journal of Membrane Science   486 106-118   Jul 2015   [Refereed]
© 2015 . Reverse osmosis (RO) has been employed as a key separation process in many industrial applications. In recent years, the use of positron annihilation spectroscopy (PAS) including positron annihilation lifetime spectroscopy (PALS) and Dopp...
Takahiro Fujioka, Long D. Nghiem
Separation and Purification Technology   142 268-273   Mar 2015   [Refereed]
© 2015 Elsevier B.V. All rights reserved. Backwashing using ozonated water was investigated to control fouling during direct sewer mining using a ceramic microfiltration (MF) membrane. Primarily treated municipal wastewater was filtered and backwa...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Long D. Nghiem
Desalination   358 18-26   Feb 2015   [Refereed]
© 2014 Elsevier B.V. A protocol to validate the rejection of organic chemicals of potential health risk by low pressure reverse osmosis (LPRO) membranes was developed for decision making support regarding the monitoring level required for potable ...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Long D. Nghiem
Environmental Science: Water Research and Technology   1 846-854   Jan 2015   [Refereed]
© 2016 The Royal Society of Chemistry. This study aims to provide further insights to the rejection mechanisms of trace organic chemicals (TrOCs) by nanofiltration (NF). The separation mechanisms of TrOCs by an NF membrane were elucidated by asses...
Takahiro Fujioka, Nagayasu Oshima, Ryoichi Suzuki, Michael Higgins, William E. Price, Rita K. Henderson, Long D. Nghiem
Water Science and Technology: Water Supply   15 510-516   Jan 2015   [Refereed]
© IWA Publishing 2015. The effects of heat treatment on membrane fouling resistance and the rejection of small and neutral solutes by reverse osmosis (RO) membranes were elucidated. RO membrane modification by heat treatment reduced fouling and im...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Long D. Nghiem
Desalination   368 69-75   Jan 2015   [Refereed]
© 2014 The rejection behaviours of 41 trace organic chemicals (TrOCs) by a hollow fibre cellulose triacetate (CTA) reverse osmosis (RO) membrane for potable water reuse were evaluated. Results reported here suggest that the rejection behaviours of...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Long D. Nghiem
Separation and Purification Technology   136 258-264   Nov 2014   [Refereed]
© 2014 Elsevier B.V. All rights reserved. The rejection of 41 trace organic chemicals (TrOCs) by a ceramic nanofiltration (NF) membrane was examined and compared with that by two polyamide-based NF membranes - namely NF90 and NF270. Rejection beha...
Takahiro Fujioka, Kha L. Tu, Stuart J. Khan, James A. McDonald, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Desalination   350 28-34   Oct 2014   [Refereed]
N-nitrosamines and boron are small solutes of particular concern during water recycling applications. Here, we evaluated the rejection of seven N-nitrosamines and boron under a range of operating conditions and feed solution characteristics. The e...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Desalination   343 60-66   Jun 2014   [Refereed]
The impact of chemical cleaning on the removal of N-nitrosamines by low pressure reverse osmosis (RO) membranes was investigated. The results show that caustic chemical cleaning resulted in an increase in membrane permeability but caused a notable...
Alexander Simon, Takahiro Fujioka, William E. Price, Long D. Nghiem
Separation and Purification Technology   127 70-76   Apr 2014   [Refereed]
This study demonstrates the feasibility of producing NaOH from coal seam gas (CSG) brine by membrane electrolysis. Membrane electrolysis of NaHCO3, Na2CO3, and NaCl, which are the three dominating sources of sodium in CSG brine, were evaluated and...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Journal of Membrane Science   454 212-219   Mar 2014   [Refereed]
A mathematical model was developed based on the irreversible thermodynamic principle and hydrodynamic calculation to predict the rejection of N-nitrosamines by spiral-wound reverse osmosis (RO) membrane systems. The developed model is able to accu...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Long D. Nghiem
Ozone: Science and Engineering   36 174-180   Jan 2014   [Refereed]
This study aims to evaluate the performance of ozone treatment for removing N-nitrosamines from reverse osmosis (RO) concentrate in water recycling applications. In the absence of any N-nitrosamine precursors, the destruction efficiency of N-nitro...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Water Research   47 6141-6148   Oct 2013   [Refereed]
This study aims to provide longitudinal and spatial insights to the rejection of N-nitrosamines by reverse osmosis (RO) membranes during sampling campaigns at three full-scale water recycling plants. Samples were collected at all individual filtra...
Takahiro Fujioka, Nagayasu Oshima, Ryoichi Suzuki, Stuart J. Khan, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Separation and Purification Technology   116 426-432   Jul 2013   [Refereed]
Free-volume hole-radii of the active skin layer of one seawater and two low pressure reverse osmosis (RO) membranes - namely SWC5, ESPAB, and ESPA2 respectively - were evaluated using positron annihilation lifetime spectroscopy (PALS) with a slow ...
Kha L. Tu, Takahiro Fujioka, Stuart J. Khan, Yvan Poussade, Annalie Roux, Jörg E. Drewes, Jörg E. Drewes, Allan R. Chivas, Long D. Nghiem
Environmental Science and Technology   47 6425-6430   Jun 2013   [Refereed]
The results of this study reveal a strong linear correlation (R2 = 0.95) between the rejections of boron and N-nitrosodimethylamine (NDMA) by six different reverse osmosis (RO) membranes, suggesting that boron can be used as a surrogate for NDMA r...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Annalie Roux, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Desalination   316 67-75   May 2013   [Refereed]
The influence of membrane characteristics on the rejection of eight N-nitrosamines was investigated using one nanofiltration (NF), one seawater reverse osmosis (SWRO) and six low pressure reverse osmosis (LPRO) membranes. The rejection of the two ...
Kaushalya C. Wijekoon, Takahiro Fujioka, James A. McDonald, Stuart J. Khan, Faisal I. Hai, William E. Price, Long D. Nghiem
Bioresource Technology   141 41-45   Jan 2013   [Refereed]
This study investigated the fate of eight N-nitrosamines during membrane bioreactor (MBR) treatment. The results suggest that biodegradation is mainly responsible for the removal of N-nitrosamines during MBR treatment. Other removal mechanisms wer...
Takahiro Fujioka, Long D. Nghiem
Water Science and Technology: Water Supply   13 1553-1559   Jan 2013   [Refereed]
The use of heat treatment to improve solute rejection and fouling resistance of a polyamide reverse osmosis (RO) membrane was investigated in this study. Heat treatment was carried out by immersing the membrane samples in Milli-Q water at 70 °C fo...
Takahiro Fujioka, Stuart J. Khan, James A. McDonald, Rita K. Henderson, Yvan Poussade, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Journal of Membrane Science   427 311-319   Jan 2013   [Refereed]
The impact of fouling on N-nitrosamine rejection by nanofiltration (NF) and reverse osmosis (RO) membranes was investigated in this study. Membrane fouling was simulated using tertiary treated effluent and several model fouling solutions (that con...
Takahiro Fujioka, Stuart J. Khan, Yvan Poussade, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes, Long D. Nghiem
Separation and Purification Technology   98 503-515   Sep 2012   [Refereed]
N-nitrosodimethylamine (NDMA) and several other N-nitrosamines have been identified as probable human carcinogens. Here, we review key aspects related to the occurrence and removal of N-nitrosamines by reverse osmosis (RO) membranes in the context...
Takahiro Fujioka, Long D. Nghiem, Stuart J. Khan, James A. McDonald, Yvan Poussade, Jörg E. Drewes, Jörg E. Drewes
Journal of Membrane Science   409-410 66-74   Aug 2012   [Refereed]
The rejection of eight N-nitrosamines was investigated in this laboratory-scale study, focusing on the influence of feed solution characteristics on their separation by low pressure reverse osmosis membranes. The rejection mechanisms of N-nitrosam...
Victor Yangali-Quintanilla, Victor Yangali-Quintanilla, Sung Kyu Maeng, Sung Kyu Maeng, Takahiro Fujioka, Maria Kennedy, Zhenyu Li, Gary Amya, Gary Amya
Desalination and Water Treatment   34 50-56   Jan 2011   [Refereed]
Reverse osmosis (RO) in existing water reuse facilities is a water industry standard. However, that approach may be questioned taking into consideration that "tight" NF can be equal or "better" than RO. NF can achieve the same removals of RO membr...
Victor Yangali-Quintanilla, Victor Yangali-Quintanilla, Victor Yangali-Quintanilla, Sung Kyu Maeng, Sung Kyu Maeng, Sung Kyu Maeng, Takahiro Fujioka, Maria Kennedy, Gary Amy, Gary Amy, Gary Amy
Journal of Membrane Science   362 334-345   Oct 2010   [Refereed]
For water reuse applications, " tight" nanofiltration (NF) membranes (of polyamide) as an alternative to reverse osmosis (RO) can be an effective barrier against pharmaceuticals, pesticides, endocrine disruptors and other organic contaminants. The...

Conference Activities & Talks

 
Two Innovative Water Quality Monitoring Technologies
Takahiro Fujioka
33rd Annual WateReuse Symposium   Sep 2018   
Removal of trace organic chemicals by reverse osmosis membrane: An online monitoring technique for potable water reuse [Invited]
Takahiro Fujioka
11th conference of the Aseanian Membrane Society   Jul 2018   
Modification of Reverse Osmosis Membranes for Improved Removal of N-nitrosodimethylamine
Takahiro Fujioka
2018 Water Research Foundation Conference   May 2018   
Effects of membrane fouling on the rejection of N-nitrosodimethylamine by reverse osmosis
Takahiro Fujioka
5th International Symposium on Environmental Analytical Chemistry   May 2017   
Effects of fouling and chemical cleaning on N-nitrosodimethylamine (NDMA) rejection by RO membranes
Takahiro Fujioka
The 10th Conference of Aseanian Membrane Society   Jul 2016