Oxidation of chlorinated phenols using Fenton's reagent
- Berkau Associates, Nashville, TN (United States)
- Vanderbilt Univ., Nashville, TN (United States)
Oxidation of chlorinated phenols using Fenton's reagent (hydrogen peroxide and ferrous iron catalyst) both oxidize and dechlorinate phenol species. The kinetics of the Fenton's oxidation of the three monochlorophenol isomers and five of the six dichlorophenol isomers were examined under batch and semibatch conditions. Concentrations of the organic species, oxidant utilization and caustic demand required to maintain a pH of 3.5 were monitored. The in-situ chloride concentrations were monitored in selected tests as well. Ultimate oxidation to CO[sub 2], H[sub 2]O, and HCl was not obtained under the test conditions, but the extent of oxidation to final products can be estimated from the measured parameters. A mechanism is hypothesized to explain the observed behavior of the oxidation processes. Test results show that the monochlorinated phenols oxidize about as rapidly as phenol itself. The dechlorinated phenols demonstrate a wide range of oxidation rates under the same test conditions. Mineralization was slightly affected by the mode of oxidation, and usually lagged behind the oxidation rate of the substrate, suggesting that dechlorination occurs primarily to daughter species. 6 refs., 20 figs., 1 tab.
- OSTI ID:
- 6223496
- Journal Information:
- Hazardous Waste and Hazardous Materials; (United States), Journal Name: Hazardous Waste and Hazardous Materials; (United States) Vol. 10:2; ISSN 0882-5696; ISSN HWHME2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201 -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
AROMATICS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DECHLORINATION
DEHALOGENATION
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
HYDROXY COMPOUNDS
IRON COMPOUNDS
KINETICS
MANAGEMENT
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PEROXIDES
PHENOLS
PROCESSING
PRODUCTION
REACTION KINETICS
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WET OXIDATION PROCESSES