Characteristics of permanganate oxidation of TCE at low reagent concentrations

Nam Chil Woo, S. G. Hyun, W. W. Park, E. S. Lee, F. W. Schwartz

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A controlled-release technique using potassium permanganate (KMnO4) has been recently developed as a long-term and semi-passive remediation scheme for dilute groundwater plumes of chlorinated solvents such as trichloroethylene (TCE) and perchloroethylene. Batch experiments were performed to evaluate TCE removal efficiencies of a low concentration of permanganate (MnO4-) solution and to estimate the optimum dose of permanganate required to remove low levels of TCE from groundwater plumes without leaving intermediate organic forms. Experimental results indicated that when the molar ratio of [MnO4-]0/[TCE]0 was about 10, 95% of the TCE in the plume was removed within less than 90 min, and about 90% of the chloride in the organic forms was converted into inorganic ions, while the TCE removal rates and the chloride conversion rates were considerably lower when the [TCE]0/[MnO4-]0 values were lower. These data suggested that the [MnO4-]0 and the [MnO4-]0/[TCE]0 values would have strong effects on the efficiency and completeness of TCE oxidation. Further detailed investigations of the effect of [MnO4-]0 and [MnO4-]0/[TCE]0 values on the removal efficiencies and completeness of the TCE oxidation are warranted for successful application of the controlled-release KMnO4 technique in practice.

Original languageEnglish
Pages (from-to)1337-1342
Number of pages6
JournalEnvironmental Technology
Volume30
Issue number13
DOIs
Publication statusPublished - 2009 Dec 1

Fingerprint

Trichloroethylene
trichloroethylene
oxidation
Oxidation
plume
Chlorides
Groundwater
permanganic acid
chloride
Potassium Permanganate
Tetrachloroethylene
groundwater
tetrachloroethylene
Remediation
remediation
potassium

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal

Cite this

Woo, Nam Chil ; Hyun, S. G. ; Park, W. W. ; Lee, E. S. ; Schwartz, F. W. / Characteristics of permanganate oxidation of TCE at low reagent concentrations. In: Environmental Technology. 2009 ; Vol. 30, No. 13. pp. 1337-1342.
@article{27a5adbc6df948489d428d073fc78fde,
title = "Characteristics of permanganate oxidation of TCE at low reagent concentrations",
abstract = "A controlled-release technique using potassium permanganate (KMnO4) has been recently developed as a long-term and semi-passive remediation scheme for dilute groundwater plumes of chlorinated solvents such as trichloroethylene (TCE) and perchloroethylene. Batch experiments were performed to evaluate TCE removal efficiencies of a low concentration of permanganate (MnO4-) solution and to estimate the optimum dose of permanganate required to remove low levels of TCE from groundwater plumes without leaving intermediate organic forms. Experimental results indicated that when the molar ratio of [MnO4-]0/[TCE]0 was about 10, 95{\%} of the TCE in the plume was removed within less than 90 min, and about 90{\%} of the chloride in the organic forms was converted into inorganic ions, while the TCE removal rates and the chloride conversion rates were considerably lower when the [TCE]0/[MnO4-]0 values were lower. These data suggested that the [MnO4-]0 and the [MnO4-]0/[TCE]0 values would have strong effects on the efficiency and completeness of TCE oxidation. Further detailed investigations of the effect of [MnO4-]0 and [MnO4-]0/[TCE]0 values on the removal efficiencies and completeness of the TCE oxidation are warranted for successful application of the controlled-release KMnO4 technique in practice.",
author = "Woo, {Nam Chil} and Hyun, {S. G.} and Park, {W. W.} and Lee, {E. S.} and Schwartz, {F. W.}",
year = "2009",
month = "12",
day = "1",
doi = "10.1080/09593330902840342",
language = "English",
volume = "30",
pages = "1337--1342",
journal = "Environmental Technology (United Kingdom)",
issn = "0959-3330",
publisher = "Taylor and Francis Ltd.",
number = "13",

}

Characteristics of permanganate oxidation of TCE at low reagent concentrations. / Woo, Nam Chil; Hyun, S. G.; Park, W. W.; Lee, E. S.; Schwartz, F. W.

In: Environmental Technology, Vol. 30, No. 13, 01.12.2009, p. 1337-1342.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Characteristics of permanganate oxidation of TCE at low reagent concentrations

AU - Woo, Nam Chil

AU - Hyun, S. G.

AU - Park, W. W.

AU - Lee, E. S.

AU - Schwartz, F. W.

PY - 2009/12/1

Y1 - 2009/12/1

N2 - A controlled-release technique using potassium permanganate (KMnO4) has been recently developed as a long-term and semi-passive remediation scheme for dilute groundwater plumes of chlorinated solvents such as trichloroethylene (TCE) and perchloroethylene. Batch experiments were performed to evaluate TCE removal efficiencies of a low concentration of permanganate (MnO4-) solution and to estimate the optimum dose of permanganate required to remove low levels of TCE from groundwater plumes without leaving intermediate organic forms. Experimental results indicated that when the molar ratio of [MnO4-]0/[TCE]0 was about 10, 95% of the TCE in the plume was removed within less than 90 min, and about 90% of the chloride in the organic forms was converted into inorganic ions, while the TCE removal rates and the chloride conversion rates were considerably lower when the [TCE]0/[MnO4-]0 values were lower. These data suggested that the [MnO4-]0 and the [MnO4-]0/[TCE]0 values would have strong effects on the efficiency and completeness of TCE oxidation. Further detailed investigations of the effect of [MnO4-]0 and [MnO4-]0/[TCE]0 values on the removal efficiencies and completeness of the TCE oxidation are warranted for successful application of the controlled-release KMnO4 technique in practice.

AB - A controlled-release technique using potassium permanganate (KMnO4) has been recently developed as a long-term and semi-passive remediation scheme for dilute groundwater plumes of chlorinated solvents such as trichloroethylene (TCE) and perchloroethylene. Batch experiments were performed to evaluate TCE removal efficiencies of a low concentration of permanganate (MnO4-) solution and to estimate the optimum dose of permanganate required to remove low levels of TCE from groundwater plumes without leaving intermediate organic forms. Experimental results indicated that when the molar ratio of [MnO4-]0/[TCE]0 was about 10, 95% of the TCE in the plume was removed within less than 90 min, and about 90% of the chloride in the organic forms was converted into inorganic ions, while the TCE removal rates and the chloride conversion rates were considerably lower when the [TCE]0/[MnO4-]0 values were lower. These data suggested that the [MnO4-]0 and the [MnO4-]0/[TCE]0 values would have strong effects on the efficiency and completeness of TCE oxidation. Further detailed investigations of the effect of [MnO4-]0 and [MnO4-]0/[TCE]0 values on the removal efficiencies and completeness of the TCE oxidation are warranted for successful application of the controlled-release KMnO4 technique in practice.

UR - http://www.scopus.com/inward/record.url?scp=70450233766&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70450233766&partnerID=8YFLogxK

U2 - 10.1080/09593330902840342

DO - 10.1080/09593330902840342

M3 - Article

C2 - 20088197

AN - SCOPUS:70450233766

VL - 30

SP - 1337

EP - 1342

JO - Environmental Technology (United Kingdom)

JF - Environmental Technology (United Kingdom)

SN - 0959-3330

IS - 13

ER -