EPA 540/F-93/509
Removal of Phenol from Aqueous Solutions
Using High Energy Electron Beam Irradiation
Florida International University and the
University of Miami
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Removal of Phenol from Aqueous Solutions Using High
Energy Electron Beam Irradiation Florida International University and the
University of Miami (17K)
ABSTRACT
Removal of Phenol from Aqueous Solutions
Using High Energy Electron Beam Irradiation
Florida International University and the
University of Miami
Emerging Technology Bulletin
EPA 540/F-93/509
August 1993
Irradiation of aqueous solutions with high-energy electrons results in the formation
of the aqueous electron, e-aq ; hydrogen radical, H-; and the hydroxyl radical,
OH-. These reactive transient species initiate chemical reactions capable of
destroying organic compounds in aqueous solution, in most cases oxidizing them
to carbon dioxide, water and salt. No sludge is formed and no pretreatment is
necessary. The reaction by-products are non-toxic, and the process represents
a new technology for the restoration of contaminated water, soils and sediments.
Current studies using high energy electron beam irradiation have demonstrated
that the process can destroy several classes of hazardous organic compounds.
These studies have been extended to the destruction of phenol in aqueous solution
in a large-scale, flow-through system. High energy electron beam irradiation
effectively removes phenol from aqueous solutions at large scale. Removal is
affected by solute concentration, absorbed dose and total alkalinity. At high
phenol concentrations, recirculation of the waste stream is necessary to destroy
all of the phenol and its reaction by-products. It is shown that high energy
electron beam irradiation leads to the formation of oxidized reaction by-products.
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Posted February 26, 1999
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