Kinetics of the oxidation of methyl tert-butyl ether (MTBE) by potassium permanganate

J.H. Damm, C. Hardacre, R.M. Kalin, K.P. Walsh

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

The occurrence of the fuel oxygenate methyl tert-butyl ether (MTBE) in the environment has received considerable scientific attention. The pollutant is frequently found in the groundwater due to leaking of underground storage tanks or pipelines. Concentrations of more than several mg/L MTBE were detected in groundwater at several places in the US and Germany in the last few years. In situ chemical oxidation is a promising treatment method for MTBE-contaminated plumes. This research investigated the reaction kinetics for the oxidation of MTBE by permanganate. Batch tests demonstrated that the oxidation of MTBE by permanganate is second order overall and first order individually with respect to permanganate and MTBE. The second-order rate constant was 1.426 x 10(-6) L/mg/h. The influence of pH on the reaction rate was demonstrated to have no significant effect. However, the rate of MTBE oxidation by potassium permanganate is 2-3 orders of magnitude lower than of other advanced oxidation processes. The slower rates of MTBE oxidation by permanganate limit the applicability of this process for rapid MTBE cleanup strategies. However, permanganate oxidation of MTBE has potential for passive oxidation risk management strategies. (C) 2002 Elsevier Science Ltd. All rights reserved.
LanguageEnglish
Pages3638-3646
Number of pages9
JournalWater Research
Volume36
Issue number14
DOIs
Publication statusPublished - 1 Aug 2002

Fingerprint

MTBE
Potassium
Ethers
potassium
oxidation
kinetics
Oxidation
Kinetics
Groundwater
groundwater
underground storage
storage tank
reaction kinetics
cleanup
Risk management
Reaction kinetics
reaction rate
Reaction rates
Rate constants
Pipelines

Keywords

  • groundwater
  • MTBE
  • permanganate
  • chemical oxidation
  • kinetics
  • pH

Cite this

Damm, J.H. ; Hardacre, C. ; Kalin, R.M. ; Walsh, K.P. / Kinetics of the oxidation of methyl tert-butyl ether (MTBE) by potassium permanganate. In: Water Research. 2002 ; Vol. 36, No. 14. pp. 3638-3646.
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Kinetics of the oxidation of methyl tert-butyl ether (MTBE) by potassium permanganate. / Damm, J.H.; Hardacre, C.; Kalin, R.M.; Walsh, K.P.

In: Water Research, Vol. 36, No. 14, 01.08.2002, p. 3638-3646.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Kinetics of the oxidation of methyl tert-butyl ether (MTBE) by potassium permanganate

AU - Damm, J.H.

AU - Hardacre, C.

AU - Kalin, R.M.

AU - Walsh, K.P.

PY - 2002/8/1

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N2 - The occurrence of the fuel oxygenate methyl tert-butyl ether (MTBE) in the environment has received considerable scientific attention. The pollutant is frequently found in the groundwater due to leaking of underground storage tanks or pipelines. Concentrations of more than several mg/L MTBE were detected in groundwater at several places in the US and Germany in the last few years. In situ chemical oxidation is a promising treatment method for MTBE-contaminated plumes. This research investigated the reaction kinetics for the oxidation of MTBE by permanganate. Batch tests demonstrated that the oxidation of MTBE by permanganate is second order overall and first order individually with respect to permanganate and MTBE. The second-order rate constant was 1.426 x 10(-6) L/mg/h. The influence of pH on the reaction rate was demonstrated to have no significant effect. However, the rate of MTBE oxidation by potassium permanganate is 2-3 orders of magnitude lower than of other advanced oxidation processes. The slower rates of MTBE oxidation by permanganate limit the applicability of this process for rapid MTBE cleanup strategies. However, permanganate oxidation of MTBE has potential for passive oxidation risk management strategies. (C) 2002 Elsevier Science Ltd. All rights reserved.

AB - The occurrence of the fuel oxygenate methyl tert-butyl ether (MTBE) in the environment has received considerable scientific attention. The pollutant is frequently found in the groundwater due to leaking of underground storage tanks or pipelines. Concentrations of more than several mg/L MTBE were detected in groundwater at several places in the US and Germany in the last few years. In situ chemical oxidation is a promising treatment method for MTBE-contaminated plumes. This research investigated the reaction kinetics for the oxidation of MTBE by permanganate. Batch tests demonstrated that the oxidation of MTBE by permanganate is second order overall and first order individually with respect to permanganate and MTBE. The second-order rate constant was 1.426 x 10(-6) L/mg/h. The influence of pH on the reaction rate was demonstrated to have no significant effect. However, the rate of MTBE oxidation by potassium permanganate is 2-3 orders of magnitude lower than of other advanced oxidation processes. The slower rates of MTBE oxidation by permanganate limit the applicability of this process for rapid MTBE cleanup strategies. However, permanganate oxidation of MTBE has potential for passive oxidation risk management strategies. (C) 2002 Elsevier Science Ltd. All rights reserved.

KW - groundwater

KW - MTBE

KW - permanganate

KW - chemical oxidation

KW - kinetics

KW - pH

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