A study investigating the sonoelectrochemical degradation of an organic compound employing Fenton's reagent
A study investigating the sonoelectrochemical degradation of an organic compound employing Fenton's reagent
The degradation of an organic dye molecule (specifically meldola blue, MDB) is reported under the influence of power ultrasound in combination with electrochemically-generated hydrogen peroxide. A novel flow system is employed to measure the degradation as a function of time while minimising the disturbance to the acoustics of the sonoelectrochemical reactor employed. The effect of adding Fe2+ to the rate of dye degradation is measured and demonstrated to be significant. Under optimum conditions the rate constant for dye degradation was found to reach a maximum value of (23.7 +/- 0.35) 10(-3) min(-1) assuming pseudo-first order kinetics. The rate constant for the complete destruction of MDB, determined by chemical oxygen demand, was found to be significantly slower at (10.2 +/- 2.6) 10(-3) min(-1).
waste-water treatment, sonochemical degradation, ultrasonic irradiation, aqueous-solution, oxidation, phenol, 4-chlorophenol, nitrophenol, media
5340-5345
Abdelsalam, Mamdouh E.
d1cbddcb-9f5c-46d5-b774-1bbaee26e115
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
2002
Abdelsalam, Mamdouh E.
d1cbddcb-9f5c-46d5-b774-1bbaee26e115
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Abdelsalam, Mamdouh E. and Birkin, Peter R.
(2002)
A study investigating the sonoelectrochemical degradation of an organic compound employing Fenton's reagent.
Physical Chemistry Chemical Physics, 4 (21), .
(doi:10.1039/b205987h).
Abstract
The degradation of an organic dye molecule (specifically meldola blue, MDB) is reported under the influence of power ultrasound in combination with electrochemically-generated hydrogen peroxide. A novel flow system is employed to measure the degradation as a function of time while minimising the disturbance to the acoustics of the sonoelectrochemical reactor employed. The effect of adding Fe2+ to the rate of dye degradation is measured and demonstrated to be significant. Under optimum conditions the rate constant for dye degradation was found to reach a maximum value of (23.7 +/- 0.35) 10(-3) min(-1) assuming pseudo-first order kinetics. The rate constant for the complete destruction of MDB, determined by chemical oxygen demand, was found to be significantly slower at (10.2 +/- 2.6) 10(-3) min(-1).
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Published date: 2002
Keywords:
waste-water treatment, sonochemical degradation, ultrasonic irradiation, aqueous-solution, oxidation, phenol, 4-chlorophenol, nitrophenol, media
Identifiers
Local EPrints ID: 19648
URI: http://eprints.soton.ac.uk/id/eprint/19648
ISSN: 1463-9076
PURE UUID: 7595fd39-b713-4211-b566-a48a14f60245
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Date deposited: 15 Feb 2006
Last modified: 16 Mar 2024 02:46
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Author:
Mamdouh E. Abdelsalam
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