The effect of very high hydraulic pressure on the permeability and salt rejection of reverse osmosis membranes
Name
920922088-MIT.pdf
Description
Full printable version
Size
4.53 MB
Format
Adobe PDF
Checksum (MD5)
e971090b64c3510666461e8ff34adbbd
Author(s)
McConnon, Dillon James
Advisor(s)
Lallit Anand.
Date Issued
2015
Publisher
Massachusetts Institute of Technology
Abstract
A stirred-cell reverse osmosis setup was used to demonstrate that a seawater reverse osmosis membrane can maintain excellent rejection at pressures as high as 172 bar. However, it was also demonstrated that there was a significant drop in permeability at high pressures - likely due to membrane compaction. A simple visco-elastic model was shown to be able to model the overall shape of the permeability curve in time. However, this model does not match the data well when pressure is removed and then reapplied. From the perspective of membrane performance, RO is feasible at high pressures but distinct challenges are presented by reduced permeability and increased variability in flux.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 59-60).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
Persistent DSpace Link
