Final LDRD report :ultraviolet water purification systems for rural environments and mobile applications.
Author(s) -
Michael A. Banas,
Mary H. Crawford,
D.S. Ruby,
Michael R. Ross,
Jeffrey Nelson,
Andrew A. Allerman,
Ray Boucher
Publication year - 2005
Language(s) - English
Resource type - Reports
DOI - 10.2172/876370
Subject(s) - ultraviolet , portable water purification , environmental science , light emitting diode , ultraviolet light , computer science , process engineering , materials science , environmental engineering , engineering , optoelectronics
We present the results of a one year LDRD program that has focused on evaluating the use of newly developed deep ultraviolet LEDs in water purification. We describe our development efforts that have produced an LED-based water exposure set-up and enumerate the advances that have been made in deep UV LED performance throughout the project. The results of E. coli inactivation with 270-295 nm LEDs are presented along with an assessment of the potential for applying deep ultraviolet LED-based water purification to mobile point-of-use applications as well as to rural and international environments where the benefits of photovoltaic-powered systems can be realized
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