Omniphobic membrane using layer-by-layer technique to treat RO brine from CSG produced water by AGMD
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- Conference Proceeding
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The worldwide problem on water scarcity has led to innovations in desalination technologies. The main desalination technologies used nowadays are multi-stage flash distillation and reverse osmosis; however both require large amounts of energy for pure water production. Scarcities in energy and water are considered as two of the top challenges in the world, thus there is a necessity to provide desalination technologies that can address both of these issues. Membrane distillation (MD) is gaining momentum as a potential alternative for water purification and desalination because it can possibly utilize low grade/waste heat, and solar energy with very high recovery (100% theoretical). MD is a thermally-driven membrane separation process utilizing low operating temperature (below 90oC) that allows only water vapor to pass through a hydrophobic, porous membrane, and is operated at ambient pressure or at vacuum pressure. MD is driven by the difference in partial vapor pressure between the hot feed and cold permeate streams.
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