Photocatalytic Destruction of Chlorinated Solvents in Water With Solar Energy

[+] Author and Article Information
J. E. Pacheco, M. R. Prairie, L. Yellowhorse

Solar Thermal Technology, Department 6216, Sandia National Laboratories, Albuquerque, NM 87185

J. Sol. Energy Eng 115(3), 123-129 (Aug 01, 1993) (7 pages) doi:10.1115/1.2930038 History: Received May 01, 1991; Revised January 01, 1993; Online June 06, 2008


Sandia National Laboratories and the National Renewable Energy Laboratory are developing a photocatalytic process to destroy organic contaminants in water. Tests with common water pollutants have been conducted at Sandia’s Solar Thermal Facility using a near commercial scale, single-axis tracking parabolic trough system with a glass pipe reactor mounted at its focus. Experiments at this scale provide verification of laboratory studies and allow examination of design and operation issues at a real-life scale. The catalyst, titanium dioxide (TiO2 ), is a harmless material found in paint, cosmetics, and toothpaste. Experiments were conducted to determine the effects of key process parameters on destruction rates of chlorinated organic compounds that are common water pollutants. In this paper, we summarize the engineering-scale results of these experiments and analyses.

Copyright © 1993 by The American Society of Mechanical Engineers
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