Welcome to the website of the Water Treatment (Prof. Takahiro Fujioka's) Lab in the Water & Environmental Science Program, Graduate School of Integrated Science and Technology, Nagasaki University, Japan. The Water Treatment Lab focuses on the development of membrane-based water treatment technologies and analytical techniques to produce low-cost but high-quality drinking water and reliable recycled water for potable water reuse.
Laboratory brochure - here, Japanese language website - here
Establishing Sustainable Water Supply System Resilient to the Contamination of Drinking Water Sources: Clean Water Project (2023-2028)
21 December 2025
Our new article "Surface-tuning of polyamide nanofiltration membranes via controlled solvent activation and graphene oxide coating" has been accepted in Desalination.
2 December 2025
Our new article "Direct nanofiltration treatment using flat-sheet membrane modules reconfigured from spiral-wound elements" has been accepted in Environmental Technology & Innovation.
27 November 2025
Our new article "Thin polyimide film with high porosity as an alternative substrate for forward osmosis membranes" has been accepted in Desalination and Water Treatment.
30 September 2025
Our new article "Nanofiltration of contaminated water and wastewater using membrane modules reconfigured from commercial spiral-wound elements" has been accepted in Case Studies in Chemical and Environmental Engineering Journal.
17 September 2025
Our new article "Submerged nanofiltration for the removal of perfluoroalkyl substances, N-nitrosamines, and pharmaceuticals and personal care products " has been accepted in Separation and Purification Technology Journal.
12 August 2025
Our new article "Reverse osmosis membrane surface modification with hydrophilic amines for enhanced N-nitrosamine separation and antifouling performance" has been accepted in Separation and Purification Technology Journal.
10 July 2025
Our new article "Introducing a pioneering model designed to optimize the configuration of full-scale submerged nanofiltration membrane modules" has been accepted in Desalination and Water Treatment Journal.
8 July 2025
Our new article "Micro-nanobubbles for removing membrane foulants from the surface of nanofiltration membranes in drinking water applications" has been accepted in Separation and Purification Journal.
1 July 2025
New funded research "Revolutionizing water quality management through real-time measurement of biological particle concentration" started!
2025.7 - 2028.3 PI, Grant in Aid for Challenging Research (Pioneering), Kaken, JPN