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Forward Osmosis Desalination Using Thermoresponsive Hydrogels as Draw Agents; An Experimental Study


Abstract Hydrogel polymers have been the subject of many studies, due to their fascinating ability to alternate between being hydrophilic and hydrophobic, upon the application of appropriate stimuli. In particular, thermo-responsive hydrogels such as N-Isopropylacrylamide (NIPAM), which possess a unique lower critical solution temperature (LCST) of 32°C, have been leveraged for membrane-based processes such as using NIPAM as a draw agent for forward osmosis (FO) desalination. The low LCST temperature of NIPAM ensures that fresh water can be recovered, at a modest energy cost as compared to other thermally based desalination processes which require water recovery at higher temperatures. This work studies by experimentation, key process parameters inv... (more)
Created Date 2019
Contributor Abdullahi, Adnan None (Author) / Phelan, Patrick (Advisor) / Wang, Robert (Committee member) / Dai, Lenore (Committee member) / Arizona State University (Publisher)
Subject Mechanical engineering / Chemical engineering / Materials Science / Bi layer / Desalination / Forward Osmosis / Hydrogels / LCST / NIPAM
Type Masters Thesis
Extent 52 pages
Language English
Copyright
Note Masters Thesis Mechanical Engineering 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis