Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
Volume 71 , Issue 3
Showing 1-10 articles out of 10 articles from the selected issue
Report on the 8th Student Meeting
Preprint of The 68th Annual Meeting
Original Paper
  • Shohei GODA, Masaaki SEKINO
    2017 Volume 71 Issue 3 Pages 183-188
    Published: 2017
    Released: September 29, 2018
    We explain the experiments and analysis results for a dialyzer-type forward osmosis(FO)module composed of hollow fiber membranes. In an FO system, low concentration solutions(FS: Feed Solution)flow in a lumen of hollow fiber membrane, while high concentration solutions(DS: Draw Solution)are supplied outside of it in with a counter current mode. FO test conditions, a 3.5 wt% NaCl soln. in the FS and 5, 7 and 10 wt% NaCl solns.in the DS were selected, and quasi-PRO test conditions, pure water in the FS and a 3.5 wt% NaCl soln.in the DS, were adopted. Effects on the flow rates of the FS and the DS by changing their values were also studied. Membrane transport equations were derived, consisting of two external concentration polarizations and an internal concentration polarization. The previous hemodiafiltration module model, involving the above membrane transport equations as a basic membrane transport model, was introduced to the numerical analysis for this FO system. It was demonstrated that the presented module model provides a reasonable explanation for FO test data of permeated water flow rates and outlet solute concentrations of the DS and the FS.
    Download PDF (1296K)
Short Paper
Relay Essay (25)
Introduction of Research Committees