Pilot-scale study of the solar detoxification of VOC-contaminated groundwater

Conference · Sat Aug 01 00:00:00 EDT 1992

OSTI ID:10174487

Mehos, M; Turchi, C ^[1]; Pacheco, J ^[2]; Boegel, A J; Merrill, T; Stanley, R ^[3]

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1. National Renewable Energy Lab., Golden, CO (United States)
2. Sandia National Labs., Albuquerque, NM (United States)
3. Lawrence Livermore National Lab., CA (United States)

The Solar Detoxification Field Experiment was designed to investigate the photocatalytic decomposition of organic contaminants in groundwater at a Superfund site at Lawrence Livermore National Laboratory (LLNL). The process uses ultraviolet (UV) energy, available in sunlight, in conjunction with the photocatalyst, titanium dioxide, to decompose organic chemicals into nontoxic compounds. The field experiment was developed by three federal laboratories: the National Renewable Energy Laboratory (NREL), Sandia National Laboratory (SNLA), and LLNL. The US Department of Energy funded the experiment. The objectives of the pilot-scale study included the advancement of the solar technology into a nonlaboratory waste-remediation environment the compilation of test data to help guide laboratory research and future demonstrations and the development of safe operational procedures. Results of the pilot study are discussed, emphasizing the effect of several process variables on the system performance. These variables include alkalinity, catalyst loading, flow velocity through the reactor, and incident solar UV radiation. The performance of the solar detoxification process are discussed as it relates to concentrating and nonconcentrating collectors.

• Research Organization: National Renewable Energy Lab., Golden, CO (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 10174487
• Report Number(s): NREL/TP-432-4981; CONF-920808-6; ON: DE92016405
• Resource Relation: Conference: American Institute of Chemical Engineers (AIChE) summer national meeting,Minneapolis, MN (United States),9-12 Aug 1992; Other Information: PBD: Aug 1992
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
54 ENVIRONMENTAL SCIENCES
GROUND WATER
DETOXIFICATION
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
SOLAR RADIATION
TITANIUM OXIDES
CATALYSTS
VOLATILE MATTER
ULTRAVIOLET RADIATION
CHLORINATED ALIPHATIC HYDROCARBONS
SOLAR
SOLAR DETOXIFICATION
ULTRAVIOLET
140505
540220
PHOTOCHEMICAL, PHOTOBIOLOGICAL, AND THERMOCHEMICAL CONVERSION
CHEMICALS MONITORING AND TRANSPORT