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July 25, 2014

Mtg: A Perspective on Desalination

by @ 2:08 pm. Filed under ALL, Electrical/Power, Electronics Design
 

WEDNESDAY September 17, 2014
OEB Life Members Chapter
– basics, infrastructure, drawbacks, new methods …
Speaker: Dr. Michael Stadermann, Lawrence Livermore National Laboratory
Time: 6:00 PM – 8:00 PM
Cost: $15.00 includes buffet dinner
Place: Willow Tree Restaurant, 6513 Regional St, Dublin
RSVP: from website
Web: www.ieee4life.org

Availability of potable water is frequently regarded as one of the worldâ??s most urgent issues.  Over a sixth of the worldâ??s population does not have access to fresh water on a daily basis, and many regions are water strained.  One method to increase the potable water supply is desalination.  However, current desalination technologies were designed with Western needs in mind, and the cost and infrastructure requirements of these technologies makes them a preferred solution only in few parts of the world.   In this talk, water and desalination needs around the globe will be described.  An overview of the basics of desalination and the most important desalination methods in use today, along with their advantages and drawbacks, will be presented.  Finally, a promising new desalination method developed recently at Lawrence Livermore National Laboratory (LLNL), flow-through electrode capacitive desalination, will be introduced.  This method utilizes a novel porous material as an electrode to remove salt from water electrostatically.  The change in electrode geometry has increased throughput of this method by a factor of ten compared to existing capacitive deionization methods, and makes this new method competitive with other commercial desalination methods. The new technology has the promise of reducing energy cost, especially for low salinities, and its scalability may alleviate infrastructure requirements, making it especially useful for developing countries.

20140917oeb

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