Photocatalytic Destruction of Chlorinated Solvents in Water With Solar Energy

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 pa...

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Bibliographic Details
Published in:Journal of solar energy engineering 1993-08, Vol.115 (3), p.123-129
Main Authors: Pacheco, J. E, Prairie, M. R, Yellowhorse, L
Format: Article
Language:English
Subjects:
140505 - Solar Energy Conversion- Photochemical, Photobiological, & Thermochemical Conversion- (1980-)
140909 - Solar Thermal Utilization- Miscellaneous Solar Applications- (1980-)
540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-)
Applied sciences
Biological and physicochemical phenomena
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMMERCIALIZATION
COMPOUND PARABOLIC CONCENTRATORS
CONTROL
DECOMPOSITION
DESIGN
ENVIRONMENTAL SCIENCES
Exact sciences and technology
MANAGEMENT
NATIONAL ORGANIZATIONS
Natural water pollution
NONRADIOACTIVE WASTE MANAGEMENT
OPERATION
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
POLLUTION
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PYROLYSIS
SANDIA LABORATORIES
SOLAR CONCENTRATORS
SOLAR ENERGY
SOLAR ENERGY RESEARCH INSTITUTE
SOLAR EQUIPMENT
SOLVENTS
THERMOCHEMICAL PROCESSES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WATER POLLUTION
WATER POLLUTION CONTROL
Water treatment and pollution
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Description
Summary: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.
ISSN:0199-6231
1528-8986
DOI:10.1115/1.2930038