Welcome to the website of the Water Treatment Lab in the Water & Environmental Engineering Program at Nagasaki University.
The Water Treatment Lab focuses on the development of membrane-based water treatment technologies and analytical techniques to produce high-quality and reliable recycled water for Non-Potable and Potable Water Reuse.

Update & News

16th November  2018 (New)
- Our new article "Effect of Ciprofloxacin dosages on the performance of sponge membrane bioreactor treating hospital wastewater" in Bioresource Technology has been accepted.

10th November  2018 (New)
- Our book has been published and it is available on the website below.
Chapter 9: Removal of N-nitrosodimethylamine for Potable Reuse: Reverse Osmosis Treatment and Monitoring Technologies

1st November  2018 (New)
- Prof. Ho Kyong Shon from University of Technology Sydney, Australia (President of Membrane Society of Australasia) gave a seminar entitled "Osmotically driven processes for water purification, resource recovery and energy production" at Nagasaki University. Many companies working on FO or PRO membranes joined his presentation.

24th September 2018
- Our new article "Biofouling Mitigation by Chloramination during Forward Osmosis Filtration of Wastewater" in International Journal of Environmental Research and Public Health is available online.

10th September 2018
- Our new article "Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis" in Environmental Science: Water Research & Technology is available online.

8th August 2018
- Our article titled "Emerging investigator series A steric pore-flow model to predict the transport of small and uncharged solutes through a reverse osmosis membrane" has been featured as one of the journal content highlights in the latest Environmental Science: Water Research & Technology promotional flyer.

3rd August 2018
- Our new article "Moringa oleifera coagulation as pretreatment prior to microfiltration for membrane fouling mitigation" in Environmental Science: Water Research & Technology is available online.


MAK: Mascot of the Water Treatment Lab


5th July 2018
- Taka gave an invited talk at the AMS 11 conference in Brisbane: https://www.ams11.com.au/

11th May 2018

11th May 2018
- Our research collaborator - Orange County Water District - has won a honor award "2018 Excellence in Environmental Engineering and Science™ Awards Competition" for their project "A Simple, Cost-Effective Method for NDMA Analysis in Drinking Water and Recycled Water to Improve Public Health Protection".
http://www.aaees.org/e3scompetition/2018honor-research.php

8th May 2018
- Taka will be presenting his research outcome titled "Online monitoring for N-nitrosodimethylamine and bacteria removal by reverse osmosis" at the 33rd Annual WateReuse Symposium in Austin, USA on 10th September 2018.

27th April 2018
- Our new article "Real-time Online Monitoring for Assessing Bacteria Removal by Reverse Osmosis" in Environmental Science & Technology Letters is available online.
https://pubs.acs.org/doi/10.1021/acs.estlett.8b00200 (Open access)

19th April 2018
- Our new article "Water reclamation using a ceramic nanofiltration membrane and surface flushing with ozonated water" in International Journal of Environmental Research and Public Health - Environmental Science and Engineering is available online.
http://www.mdpi.com/1660-4601/15/4/799 (Open access)

12th April 2018
- Our new article "An inline ion-exchange system in a chemiluminescence-based analyzer for direct analysis of N-nitrosamines in treated wastewater" in Journal of Chromatography A. is available online.
https://www.sciencedirect.com/science/article/pii/S0021967318304631
https://authors.elsevier.com/c/1WzSg4-ggD4Tt (free download until 19th June)

1st March 2018
- Our new article "Transport of small and neutral solutes through reverse osmosis membranes: Role of skin layer conformation of the polyamide film" in Journal of Membrane Science is available online.
https://www.sciencedirect.com/science/article/pii/S0376738817328508
https://authors.elsevier.com/a/1WltT1LgHNOKLy (free download until 11th May)

17th February 2018
- Our new article "Online monitoring of N‐nitrosodimethylamine rejection as a performance indicator of trace organic chemical removal by reverse osmosis" in Chemosphere is available online.
https://www.sciencedirect.com/science/article/pii/S0045653518303072

3rd February 2018
- Taka's interview in Emerging Investigators Series of Environmental Science: Water Research & Technology blog.
http://blogs.rsc.org/ew/2018/02/02/emerging-investigators-series-takahiro-fujioka

2nd February 2018
- International Journal of Environmental Research and Public Health - Special Issue "Membrane Technologies for Water and Wastewater Treatment" is now open for submission.
15th January 2018
- Our new article "A steric pore-flow model to predict the transport of small and uncharged solutes through a reverse osmosis membrane" in Environmental Science: Water Research & Technology has been accepted and is available online.

12th December 2017
- Our new article "High rejection reverse osmosis membrane for removal of N-nitrosamines and their precursors" in Water Research is available online.

September - October 2017
Taka stayed in the University of Arizona as a short-term scholar for 2 months in 2017 and 4 months in 2018.

14th September 2017
- Our new article "Near real-time N-nitrosodimethylamine monitoring in potable water reuse via online high-performance liquid chromatography-photochemical reaction-chemiluminescence" in Environmental Science: Water Research & Technology is available on line.

1st August 2017
- Our new article "Membrane fouling, chemical cleaning and separation performance assessment of a chlorine-resistant nanofiltration membrane for water recycling applications" in Separation and Purification Technology is available on line.
http://www.sciencedirect.com/science/article/pii/S1383586617313345

19th April 2017
- Our new article "Role of membrane fouling substances on the rejection of N-nitrosamines by reverse osmosis" in Water Research is available on line.
http://www.sciencedirect.com/science/article/pii/S0043135417302518

14th March 2017
- Our new article "Degradation of N-Nitrosodimethylamine by UV-Based Advanced Oxidation Processes for Potable Reuse: a Short Review" in Current Pollution Reports is available on line.
http://rdcu.be/p2sAhttp://rdcu.be/p2sA
http://link.springer.com/article/10.1007%2Fs40726-017-0052-x

13th March 2017
- Taka gave an invited presentation titled "Transport of trace organic chemicals through RO membranes for potable water reuse / 下水飲用再利用における微量物質の膜透過" at the Maku Salon organised by Kobe University. http://maftech-kobe.or.jp/home/salon/

20th December 2016
- Taka visited in Ho Chi Minh City University of Technology, Vietnam for future collaboration with A/Prof. Bui Xuan Thanh. www.buixuanthanh.com

5th December 2016
- Taka gave an invited presentation titled "Prediction of transport of trace organic chemicals through RO membranes  / 下水再生における微量物質の膜透過予測" in Kitakyushu. http://committees.jsce.or.jp/eec/

27th October 2016
- Taka gave an invited presentation at the 33th New Membrane Technology Symposium 2016 in Tokyo. https://school.jma.or.jp/membrane/index.html

20th September 2016
- Taka gave an invited presentation titled "Role of membrane technologies in potable water reuse and their R&D topics / 下水飲用再利用における膜処理の役割と今後の開発課題" at the Maku Salon organised by Kobe University. http://maftech-kobe.or.jp/home/salon/