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Comment PDF Separation Processes

New Membranes Support Sustainability Trends

By Joy LePree |

Advances in membrane technologies allow processors to delve into gas- and water-separation applications more effectively and efficiently Conventional membranes have a reputation for being “finicky” and “high maintenance” because they don’t operate well under high pressures or temperatures, are subject to fouling and consume significant amounts of energy. However, growth in gas- and water-separation applications has led to the development of more robust membranes with higher fouling resistance and enhanced selectivity, both solving problems and opening avenues for new applications driven by sustainability trends, including a green gas economy and water conservation. “Membrane systems get a bad reputation for being picky or needy with the water quality they are able to accept, as well as for fouling and scaling that leads to increased cleaning, frequent membrane replacement and, ultimately, unplanned downtime,” says Jared Galligan, director of engineering with Kurita America, Inc. (Minneapolis, Minn.; www.kuritaamerica.com). “But, as water conservation and reuse and other sustainability practices become standard operating procedure, membranes will be playing a bigger role, so current users are demanding more robust…
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