New RO desalination pretreatment membrane traps TEP

Hideki Kashihara, Shuji Hahakura, Satoshi Yahagi, Ryusuke Nakai, Sumitomo Electric Industries Ltd, Hideto Matsuyama, Yoshikage Ohmukai, Kobe University, Kouichi Matsui, Hideaki Yamagata, Toshiba Corporation, and Shinichi Motoda, Tokyo University of Marine Science & Technology

When www.desalination.biz announced in August 2011 that Sumitomo Electric Industries Ltd of Japan had developed a membrane to trap transparent exopolymer particles (TEP) in pretreatment prior to reverse-osmosis desalination, the item attracted a lot of visitors.

D&WR, therefore asked Sumitomo for more information about the research and development of this membrane, which is capable of pretreating seawater at a high flux of 10 m/d, enabling low-cost membrane treatment.

This article first appeared in the November/December 2011 issue of Desalination & Water Reuse magazine.

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