Oxidation of 2,4-dinitrotoluene using Fenton's reagent: Reaction mechanisms and their practical applications
- Dept. of Environmental Protection, Woburn, MA (United States)
- Northeastern Univ., Boston, MA (United States)
With the strict regulations of present times, chemical oxidation holds tremendous potential for destructive treatment of hazardous wastes which are resistant to biological oxidation. Fenton's reagent has proved to be an inexpensive and powerful oxidant which has been shown to oxidize a wide variety of organics. In this paper, 2,4-dinitrotoluene (2,4 DNT) was chosen as a model compound following previous work where 2,4 DNT was subjected to oxidation by hydrogen peroxide in the presence of medium power uv source. Various factors that are important to optimize the oxidation of organics were studied. The effect of aeration, step dosing and the role played by the ferric ions on oxidation of 2,4 DNT were verified in this experimental study. The results of the work show that 2,4 DNT can be effectively oxidized in aqueous solutions with Fenton's reagent. At a H[sub 2]O[sub 2]: DNT: Fe[sup 2+] ratio of 20:1:2.5 (molar), 2,4 DNT was completely removed in 5 hours. Finally, the results and the reaction intermediates of the oxidation of 2,4 DNT with Fenton's reagent vis-a-vis the H[sub 2]O[sub 2]/uv system are discussed. 18 refs., 6 figs., 2 tabs.
- OSTI ID:
- 6223461
- Journal Information:
- Hazardous Waste and Hazardous Materials; (United States), Vol. 10:2; ISSN 0882-5696
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKYLATED AROMATICS
OXIDATION
NITRO COMPOUNDS
WET OXIDATION PROCESSES
CHEMICAL REACTION KINETICS
COMPARATIVE EVALUATIONS
HYDROGEN PEROXIDE
TOLUENE
ULTRAVIOLET RADIATION
AROMATICS
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
EVALUATION
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
PROCESSING
RADIATIONS
REACTION KINETICS
WASTE MANAGEMENT
WASTE PROCESSING
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
400201 - Chemical & Physicochemical Properties