Comparative evaluation of ibuprofen removal by UV/H2O2 and UV/S2O82- processes for wastewater treatment

Minhwan Kwon, Seonbaek Kim, Yeojoon Yoon, Youmi Jung, Tae Mun Hwang, Junghyang Lee, Joonwun Kang

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

This study evaluates the UV/H2O2 and UV/S2O82- (UV/PS) processes as alternative methods for the removal of ibuprofen (IBF) from wastewater destined for treatment and reuse. The second-order rate constants of IBF with HO and SO4- were determined as kHO/IBF=5.57×109M-1s-1 and kSO4-/IBF=1.32×109M-1s-1. The IBF removal rate was higher in the UV/PS process than in the UV/H2O2 process for deionized water, while a higher IBF removal rate was seen with the UV/H2O2 process than with the UV/PS process for wastewater effluent. The suppression of IBF removal in wastewater effluent was verified by investigating the effects of background water quality using synthetic solutions (HCO3-, Cl-, NO3-, SO42-, humic acid, and fulvic acid); HCO3- and organic compounds showed stronger inhibitory effects on the UV/PS process than on the UV/H2O2 process. A mineralization test on the effluent organic matter (EfOM) revealed a higher efficiency for the UV/PS process than the UV/H2O2 process. A toxic by-product test showed a notably higher production yield of 4-isobutylacetophenone (4-IBAP) with the UV/PS process ηUV/PSIBF→IBAP=0.23 than with the UV/H2O2 process ηUV/H2O2IBF→IBAP=0.019, even though 4-IBAP was removed by both processes.

Original languageEnglish
Pages (from-to)379-390
Number of pages12
JournalChemical Engineering Journal
Volume269
DOIs
Publication statusPublished - 2015 Jun 1

Fingerprint

Ibuprofen
Wastewater treatment
Effluents
Wastewater
effluent
wastewater
Deionized water
fulvic acid
Organic compounds
Biological materials
humic acid
Water quality
Byproducts
organic compound
Rate constants
Humic Substances
mineralization
water quality
Poisons
organic matter

All Science Journal Classification (ASJC) codes

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

Cite this

Kwon, Minhwan ; Kim, Seonbaek ; Yoon, Yeojoon ; Jung, Youmi ; Hwang, Tae Mun ; Lee, Junghyang ; Kang, Joonwun. / Comparative evaluation of ibuprofen removal by UV/H2O2 and UV/S2O82- processes for wastewater treatment. In: Chemical Engineering Journal. 2015 ; Vol. 269. pp. 379-390.
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Comparative evaluation of ibuprofen removal by UV/H2O2 and UV/S2O82- processes for wastewater treatment. / Kwon, Minhwan; Kim, Seonbaek; Yoon, Yeojoon; Jung, Youmi; Hwang, Tae Mun; Lee, Junghyang; Kang, Joonwun.

In: Chemical Engineering Journal, Vol. 269, 01.06.2015, p. 379-390.

Research output: Contribution to journalArticle

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