Membrane Separation Technologies

Membrane separation technologies use semi-permeable barriers to remove contaminants, salts, and pathogens from water, enabling purification at scales ranging from household filters to large desalination plants. As freshwater scarcity intensifies globally, researchers are developing thinner and more selective materials—including graphene-based and advanced polymer membranes—that can filter out smaller molecules while consuming less energy than conventional thermal or chemical treatment. A persistent challenge is membrane fouling, the gradual buildup of biological matter and mineral deposits that degrades performance over time, and much current work focuses on antifouling surface chemistries and novel configurations like forward osmosis that exploit natural osmotic pressure rather than external force. Open questions center on how to manufacture next-generation nanomaterials at industrial scale without sacrificing selectivity, and how to design full treatment systems that remain cost-effective and environmentally sustainable across diverse water sources.

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100,356

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2,496,846

Keywords

Membrane TechnologyDesalinationNanofiltrationForward OsmosisGraphene-based MembranesMembrane Fouling