The Water Treatment Lab led by A/Prof. Fujioka focuses on the development of membrane-based water treatment and analytical technologies to produce high-quality recycled water for Potable Water Reuse. We are the only Japanese laboratory specifically working on Potable Reuse.

Ongoing Funded Projects

2018.4 - 2021.3        PI, Grant-in-Aid for Scientific Research (B), Kaken, JPN (New)
2017.4 - 2020.3        CI, Grant-in-Aid for Scientific Research (A), Kaken, JPN

2017.2 - 2019.3        PI, Fostering Joint International Research, Kaken, JPN

2017.1 - 2019.2        CI, Gesuido Academic Incubation to Advanced Project (GAIA), JPN

Previous Funded Projects

2017.2 - 2018.5        CI, Water Environment & Reuse Foundation, USA
2016.4 - 2018.3        PI, Grant-in-Aid for Encouragement of Young Scientists (A), Kaken, JPN

2017.1 - 2017.12      PI, Fuso Innovative Technology Foundation, JPN
2016.11 - 2017.10    PI, The Sumitomo Foundation, JPN

2016.10 - 2017.9      PI, Kurita Water and Environment Foundation, JPN

2015.8 - 2016.3        PI, Grant-in-Aid for Research Activity start-up,
Kaken, JPN

Our goal

Membrane: .Development of high rejection reverse osmosis (RO) membranes that can achieve high removal of (1) micropollutants and (2) pathogens, which ultimately helps to reduce reliance on the following advanced oxidation process (AOP).

Analysis.: Development of online analytical methods for continuously determining (3) micropollutant concentrations and (4) microbial counts that can ensure membrane integrity for their removal.

RO membranes for NDMA removal

NDMA Analysis & Surrogate Indicator

Microbial Analysis and High Removal

Validation of NDMA Analyser at Water Utility .
(R&D Project Poster by Orange County Water District)

Other Research Topics

  • Portable epi-fluorescence microscope for on-site testing
  • Ceramic Nanofiltration combined with ozone cleaning
  • Forward osmosis for wastewater pre-concentration
  • Natural coagulant for fouling mitigation of microfiltration
  • Chlorine-resistant RO membrane for drinking water applications
  • High efficiency UV-LED treatment
Lab-scale Water Treatment System housed in the Lab

Low-pressure RO systems
High-pressure RO system

 FO system
 Sequential RO cell system
 All-in one Fluorescence microscope (Keyence)

Magnetic cell RO systems
Pilot-scale ceramic NF system
Ceramic NF system
Real-time bacterial counter(Azbil)
Jar tester
Ozone system

 Molecular dynamics simulations
(BIOVIA: Material Studio)

 RO pilot system (outdoor)

 MBR pilot system (outdoor)