Oxidation of geosmin and 2-methylisoborneol by the photo-Fenton process

Kinetics, degradation intermediates, and the removal of microcystin-LR and trihalomethane from Nak-Dong River water, South Korea

Jeong Ann Park, Hye Lim Nam, Jae Woo Choi, Junsoo Ha, Sang-Hyup Lee

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Due to the increased intensity and frequency of cyanobacterial blooms, taste and odor (T&O) causing compounds, geosmin (GSM) and 2-methylisoborneol (MIB), have become a cause for great concern in drinking water treatment plants (DWTPs). Advanced oxidation processes (AOPs) have been studied for the removal of GSM and MIB. However, in this work, a photo-Fenton treatment was investigated for the first time for the degradation of GSM and MIB in both synthetic and Nak-Dong River water from DWTPs. Synthetic water-based experiments were performed to investigate the optimal operation conditions for the removal of GSM and MIB, and the effects of water quality parameters of the photo-Fenton process, including the Fe(II)/H2O2 concentration, reaction time, pH, organic matter, and initial concentration of GSM and MIB. Degradation intermediates of dehydration and ring-opening were observed during the photo-Fenton process. The optimal conditions were determined to be 2 mg/L Fe(II) and 20 mg/L H2O2 at pH 5 considering both efficiency and cost. The degradation efficiency was lower than that of DI water, mainly because of the pH (7.2–7.6). Nevertheless, the photo-Fenton process meets the guideline levels (20 ng/L) in South Korea when the initial concentration in the river water is below 50 ng/L. In addition, trihalomethanes (THMs) and microcystin-LR (MC-LR), derived from cyanobacterial blooms and another cause for concern, were degraded effectively using the photo-Fenton process on the river water.

Original languageEnglish
Pages (from-to)345-354
Number of pages10
JournalChemical Engineering Journal
Volume313
DOIs
Publication statusPublished - 2017 Apr 1

Fingerprint

Trihalomethanes
river water
Rivers
oxidation
Degradation
kinetics
Oxidation
degradation
Kinetics
Water
algal bloom
Water treatment plants
Potable water
Drinking Water
dehydration
odor
water quality
Odors
organic matter
water

Keywords

  • Degradation intermediates
  • Drinking water source
  • Microcystin-LR
  • Photo-Fenton process
  • Taste and odor compounds
  • Trihalomethanes

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Oxidation of geosmin and 2-methylisoborneol by the photo-Fenton process : Kinetics, degradation intermediates, and the removal of microcystin-LR and trihalomethane from Nak-Dong River water, South Korea. / Park, Jeong Ann; Nam, Hye Lim; Choi, Jae Woo; Ha, Junsoo; Lee, Sang-Hyup.

In: Chemical Engineering Journal, Vol. 313, 01.04.2017, p. 345-354.

Research output: Contribution to journalArticle

@article{755988d35c6e4f44ab47d66e22a6855e,
title = "Oxidation of geosmin and 2-methylisoborneol by the photo-Fenton process: Kinetics, degradation intermediates, and the removal of microcystin-LR and trihalomethane from Nak-Dong River water, South Korea",
abstract = "Due to the increased intensity and frequency of cyanobacterial blooms, taste and odor (T&O) causing compounds, geosmin (GSM) and 2-methylisoborneol (MIB), have become a cause for great concern in drinking water treatment plants (DWTPs). Advanced oxidation processes (AOPs) have been studied for the removal of GSM and MIB. However, in this work, a photo-Fenton treatment was investigated for the first time for the degradation of GSM and MIB in both synthetic and Nak-Dong River water from DWTPs. Synthetic water-based experiments were performed to investigate the optimal operation conditions for the removal of GSM and MIB, and the effects of water quality parameters of the photo-Fenton process, including the Fe(II)/H2O2 concentration, reaction time, pH, organic matter, and initial concentration of GSM and MIB. Degradation intermediates of dehydration and ring-opening were observed during the photo-Fenton process. The optimal conditions were determined to be 2 mg/L Fe(II) and 20 mg/L H2O2 at pH 5 considering both efficiency and cost. The degradation efficiency was lower than that of DI water, mainly because of the pH (7.2–7.6). Nevertheless, the photo-Fenton process meets the guideline levels (20 ng/L) in South Korea when the initial concentration in the river water is below 50 ng/L. In addition, trihalomethanes (THMs) and microcystin-LR (MC-LR), derived from cyanobacterial blooms and another cause for concern, were degraded effectively using the photo-Fenton process on the river water.",
keywords = "Degradation intermediates, Drinking water source, Microcystin-LR, Photo-Fenton process, Taste and odor compounds, Trihalomethanes",
author = "Park, {Jeong Ann} and Nam, {Hye Lim} and Choi, {Jae Woo} and Junsoo Ha and Sang-Hyup Lee",
year = "2017",
month = "4",
day = "1",
doi = "10.1016/j.cej.2016.12.086",
language = "English",
volume = "313",
pages = "345--354",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",

}

TY - JOUR

T1 - Oxidation of geosmin and 2-methylisoborneol by the photo-Fenton process

T2 - Kinetics, degradation intermediates, and the removal of microcystin-LR and trihalomethane from Nak-Dong River water, South Korea

AU - Park, Jeong Ann

AU - Nam, Hye Lim

AU - Choi, Jae Woo

AU - Ha, Junsoo

AU - Lee, Sang-Hyup

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Due to the increased intensity and frequency of cyanobacterial blooms, taste and odor (T&O) causing compounds, geosmin (GSM) and 2-methylisoborneol (MIB), have become a cause for great concern in drinking water treatment plants (DWTPs). Advanced oxidation processes (AOPs) have been studied for the removal of GSM and MIB. However, in this work, a photo-Fenton treatment was investigated for the first time for the degradation of GSM and MIB in both synthetic and Nak-Dong River water from DWTPs. Synthetic water-based experiments were performed to investigate the optimal operation conditions for the removal of GSM and MIB, and the effects of water quality parameters of the photo-Fenton process, including the Fe(II)/H2O2 concentration, reaction time, pH, organic matter, and initial concentration of GSM and MIB. Degradation intermediates of dehydration and ring-opening were observed during the photo-Fenton process. The optimal conditions were determined to be 2 mg/L Fe(II) and 20 mg/L H2O2 at pH 5 considering both efficiency and cost. The degradation efficiency was lower than that of DI water, mainly because of the pH (7.2–7.6). Nevertheless, the photo-Fenton process meets the guideline levels (20 ng/L) in South Korea when the initial concentration in the river water is below 50 ng/L. In addition, trihalomethanes (THMs) and microcystin-LR (MC-LR), derived from cyanobacterial blooms and another cause for concern, were degraded effectively using the photo-Fenton process on the river water.

AB - Due to the increased intensity and frequency of cyanobacterial blooms, taste and odor (T&O) causing compounds, geosmin (GSM) and 2-methylisoborneol (MIB), have become a cause for great concern in drinking water treatment plants (DWTPs). Advanced oxidation processes (AOPs) have been studied for the removal of GSM and MIB. However, in this work, a photo-Fenton treatment was investigated for the first time for the degradation of GSM and MIB in both synthetic and Nak-Dong River water from DWTPs. Synthetic water-based experiments were performed to investigate the optimal operation conditions for the removal of GSM and MIB, and the effects of water quality parameters of the photo-Fenton process, including the Fe(II)/H2O2 concentration, reaction time, pH, organic matter, and initial concentration of GSM and MIB. Degradation intermediates of dehydration and ring-opening were observed during the photo-Fenton process. The optimal conditions were determined to be 2 mg/L Fe(II) and 20 mg/L H2O2 at pH 5 considering both efficiency and cost. The degradation efficiency was lower than that of DI water, mainly because of the pH (7.2–7.6). Nevertheless, the photo-Fenton process meets the guideline levels (20 ng/L) in South Korea when the initial concentration in the river water is below 50 ng/L. In addition, trihalomethanes (THMs) and microcystin-LR (MC-LR), derived from cyanobacterial blooms and another cause for concern, were degraded effectively using the photo-Fenton process on the river water.

KW - Degradation intermediates

KW - Drinking water source

KW - Microcystin-LR

KW - Photo-Fenton process

KW - Taste and odor compounds

KW - Trihalomethanes

UR - http://www.scopus.com/inward/record.url?scp=85007496722&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85007496722&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2016.12.086

DO - 10.1016/j.cej.2016.12.086

M3 - Article

VL - 313

SP - 345

EP - 354

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -