Application of Low-cost NMR to in-situ monitor Membrane Operation in real-time

Ying Li Chien

Research output: ThesisDoctoral Thesis

55 Downloads (Pure)


This study utilized low-cost Earth's field nuclear magnetic resonance (NMR) as a real-time monitoring
tool for non-invasive fouling assessment in commercial reverse osmosis (RO) membrane modules.
Three fouling incidents were studied under industrial conditions: pure organic fouling, pure inorganic
scaling, and combined organic-inorganic fouling. The portable NMR was positioned at two axial
positions to investigate fouling development and compared with timely industrial fouling assessment
tools, i.e. pressure and flux. The study demonstrated the potential of low-cost NMR technology to
improve RO fouling sensitivity. Future work should focus on hardware and engineering development
and real-time RO investigation associated with cleaning practices
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
  • Fridjonsson, Einar, Supervisor
  • Johns, Michael, Supervisor
Thesis sponsors
Award date20 Sept 2023
Publication statusUnpublished - 2023

Cite this