Oxidative Removal and Kinetics of Fipronil in Various Oxidation Systems for Drinking Water Treatment

Evelyn F. Chamberlain; Chuan Wang; Honglan Shi; Craig D. Adams; Yinfa Ma

doi:10.1021/jf100872f

Oxidative Removal and Kinetics of Fipronil in Various Oxidation Systems for Drinking Water Treatment

Evelyn F. Chamberlain
, Chuan Wang
, Honglan Shi
, Craig D. Adams
, Yinfa Ma

Missouri University of Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Fipronil, a pesticide gaining wide usage, was oxidized with common drinking water treatment disinfectants and oxidants; with a degradate identified using liquid chromatography-mass spectrometry. Oxidants investigated were free chlorine (HOCl/OCl ^- ), monochloramine (ClNH ₂ ), chlorine dioxide (ClO ₂ ), and permanganate (MnO ₄ ^- ) at pH 6.6 and 8.6. Free chlorine, chlorine dioxide, and permanganate were reactive with fipronil to various degrees, whereas monochloramine was only marginally reactive. No oxidation products were observed for free chlorine, monochloramine, or chlorine dioxide. Oxidation by permanganate produced an identifiable degradate, fipronil sulfone, which was recalcitrant to further oxidation by permanganate. Fipronil sulfone could, however, be further degraded by free chlorine. Under typical conditions of water treatment, free chlorine was an effective oxidant for fipronil and fipronil sulfone, achieving partial removal at typical conditions. pH effects were observed for free chlorine, chlorine dioxide, and permanganate with more rapid oxidation occurring at pH 8.6 than at pH 6.6.

Original language	American English
Pages (from-to)	6895-6899
Number of pages	5
Journal	Journal of Agricultural and Food Chemistry
Volume	58
Issue number	11
DOIs	https://doi.org/10.1021/jf100872f
State	Published - Jun 1 2010

Keywords

Fipronil
Pesticide
Pyrazole Derivative
Chemistry
Evaluation
Kinetics
Methodology
Oxidation Reduction Reaction
PH
Water Management
Water Pollutant
Water Supply
Hydrogen-Ion Concentration
Oxidation-Reduction
Pesticides
Pyrazoles
Water Pollutants, Chemical
Water Purification
Degradation Products
Kinetic Rate
Oxidation Removal

Disciplines

Chemistry
Civil Engineering

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10.1021/jf100872fLicense: CC BY

https://doi.org/10.1021/jf100872f

Cite this

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title = "Oxidative Removal and Kinetics of Fipronil in Various Oxidation Systems for Drinking Water Treatment",

abstract = " Fipronil, a pesticide gaining wide usage, was oxidized with common drinking water treatment disinfectants and oxidants; with a degradate identified using liquid chromatography-mass spectrometry. Oxidants investigated were free chlorine (HOCl/OCl - ), monochloramine (ClNH 2 ), chlorine dioxide (ClO 2 ), and permanganate (MnO 4 - ) at pH 6.6 and 8.6. Free chlorine, chlorine dioxide, and permanganate were reactive with fipronil to various degrees, whereas monochloramine was only marginally reactive. No oxidation products were observed for free chlorine, monochloramine, or chlorine dioxide. Oxidation by permanganate produced an identifiable degradate, fipronil sulfone, which was recalcitrant to further oxidation by permanganate. Fipronil sulfone could, however, be further degraded by free chlorine. Under typical conditions of water treatment, free chlorine was an effective oxidant for fipronil and fipronil sulfone, achieving partial removal at typical conditions. pH effects were observed for free chlorine, chlorine dioxide, and permanganate with more rapid oxidation occurring at pH 8.6 than at pH 6.6.",

keywords = "Fipronil, Pesticide, Pyrazole Derivative, Chemistry, Evaluation, Kinetics, Methodology, Oxidation Reduction Reaction, PH, Water Management, Water Pollutant, Water Supply, Hydrogen-Ion Concentration, Oxidation-Reduction, Pesticides, Pyrazoles, Water Pollutants, Chemical, Water Purification, Degradation Products, Kinetic Rate, Oxidation Removal",

author = "Chamberlain, \{Evelyn F.\} and Chuan Wang and Honglan Shi and Adams, \{Craig D.\} and Yinfa Ma",

year = "2010",

month = jun,

day = "1",

doi = "10.1021/jf100872f",

language = "American English",

volume = "58",

pages = "6895--6899",

journal = "Journal of Agricultural and Food Chemistry",

issn = "1520-5118",

number = "11",

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TY - JOUR

T1 - Oxidative Removal and Kinetics of Fipronil in Various Oxidation Systems for Drinking Water Treatment

AU - Chamberlain, Evelyn F.

AU - Wang, Chuan

AU - Shi, Honglan

AU - Adams, Craig D.

AU - Ma, Yinfa

PY - 2010/6/1

Y1 - 2010/6/1

N2 - Fipronil, a pesticide gaining wide usage, was oxidized with common drinking water treatment disinfectants and oxidants; with a degradate identified using liquid chromatography-mass spectrometry. Oxidants investigated were free chlorine (HOCl/OCl - ), monochloramine (ClNH 2 ), chlorine dioxide (ClO 2 ), and permanganate (MnO 4 - ) at pH 6.6 and 8.6. Free chlorine, chlorine dioxide, and permanganate were reactive with fipronil to various degrees, whereas monochloramine was only marginally reactive. No oxidation products were observed for free chlorine, monochloramine, or chlorine dioxide. Oxidation by permanganate produced an identifiable degradate, fipronil sulfone, which was recalcitrant to further oxidation by permanganate. Fipronil sulfone could, however, be further degraded by free chlorine. Under typical conditions of water treatment, free chlorine was an effective oxidant for fipronil and fipronil sulfone, achieving partial removal at typical conditions. pH effects were observed for free chlorine, chlorine dioxide, and permanganate with more rapid oxidation occurring at pH 8.6 than at pH 6.6.

AB - Fipronil, a pesticide gaining wide usage, was oxidized with common drinking water treatment disinfectants and oxidants; with a degradate identified using liquid chromatography-mass spectrometry. Oxidants investigated were free chlorine (HOCl/OCl - ), monochloramine (ClNH 2 ), chlorine dioxide (ClO 2 ), and permanganate (MnO 4 - ) at pH 6.6 and 8.6. Free chlorine, chlorine dioxide, and permanganate were reactive with fipronil to various degrees, whereas monochloramine was only marginally reactive. No oxidation products were observed for free chlorine, monochloramine, or chlorine dioxide. Oxidation by permanganate produced an identifiable degradate, fipronil sulfone, which was recalcitrant to further oxidation by permanganate. Fipronil sulfone could, however, be further degraded by free chlorine. Under typical conditions of water treatment, free chlorine was an effective oxidant for fipronil and fipronil sulfone, achieving partial removal at typical conditions. pH effects were observed for free chlorine, chlorine dioxide, and permanganate with more rapid oxidation occurring at pH 8.6 than at pH 6.6.

KW - Fipronil

KW - Pesticide

KW - Pyrazole Derivative

KW - Chemistry

KW - Evaluation

KW - Kinetics

KW - Methodology

KW - Oxidation Reduction Reaction

KW - PH

KW - Water Management

KW - Water Pollutant

KW - Water Supply

KW - Hydrogen-Ion Concentration

KW - Oxidation-Reduction

KW - Pesticides

KW - Pyrazoles

KW - Water Pollutants, Chemical

KW - Water Purification

KW - Degradation Products

KW - Kinetic Rate

KW - Oxidation Removal

UR - https://scholarsmine.mst.edu/chem_facwork/324

UR - https://doi.org/10.1021/jf100872f

U2 - 10.1021/jf100872f

DO - 10.1021/jf100872f

M3 - Article

C2 - 20455564

SN - 1520-5118

VL - 58

SP - 6895

EP - 6899

JO - Journal of Agricultural and Food Chemistry

JF - Journal of Agricultural and Food Chemistry

IS - 11

ER -

Oxidative Removal and Kinetics of Fipronil in Various Oxidation Systems for Drinking Water Treatment

Abstract

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