A novel air backwashing method for reversing wetting in membrane distillation
Name
MD Air backwashing LEP MTC16 conference v26.pdf
Size
3.6 MB
Format
Adobe PDF
Checksum (MD5)
dec6fe8dfe5f8fae3b3bba4bc93db9a0
Author(s)
Arafat, Hassan A.
Date Issued
February 2016
Journal
AMTA/AWWA Membrane Technology Conference
Publisher
American Membrane Technology Association (AMTA)
Citation
Warsinger, David M. et al. "A novel air backwashing method for reversing wetting in membrane distillation." AMTA/AWWA Membrane Technology Conference, February 13-17, 2017, Long Beach, California, USA, American Membrane Technology Association (AMTA), February 2016
Version
Author's final manuscript
Abstract
This paper describes a new method to reverse wetting of the hydrophobic membrane in membrane distillation. Pressurized air is pushed through the wetted membrane from the distillate side, thus forcing out wetted feed water, instead of merely allowing it to evaporate. To test its effectiveness, the liquid entry pressure (LEP) of the membranes was tested before and after the pressurized-air process. The results reveal that the air backwashing method was very effective, restoring LEP to nearly 85% of the original value, without requiring the long delay times associated with dryout.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://www.amtaorg.com/a-novel-air-backwashing-method-for-reversing-wetting-in-membrane-distillation
