Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water

Lei Li, Nai Yun Gao, Yang Deng, Juan Juan Yao, Ke Jia Zhang, Hai Jun Li, Di Di Yin, Hua Se Ou, Jian Wei Guo

Research output: Contribution to journalArticleResearchpeer-review

16 Citations (Scopus)

Abstract

The degradation of Microcystin-LR (MC-LR) in water by hydrogen peroxide assisted ultraviolet (UV/H2O2) process was investigated in this paper. The UV/H2O2 process appeared to be effective in removal of the MC-LR. MC-LR decomposition was primarily ascribed to production of strong and nonselective oxidant-hydroxyl radicals within the system. The intensity of UV radiation, initial concentration of MC-LR, MC-LR purity, dosages of H2O2, the initial solution pH, and anions present in water, to some extent, influenced the degradation rate of MC-LR. A modified pseudo-first-order kinetic model was developed to predict the removal efficiency under different experimental conditions.

Original languageEnglish
Pages (from-to)1660-1669
Number of pages10
JournalJournal of Zhejiang University: Science A
Volume10
Issue number11
DOIs
StatePublished - 1 Dec 2009

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Photodegradation
Potable water
Degradation
Oxidants
Hydrogen peroxide
Ultraviolet radiation
Water
Negative ions
Decomposition
Kinetics

Keywords

  • Hydrogen peroxide assisted ultraviolet (UV/H O) process
  • Hydroxyl radical
  • Microcystin-LR (MC-LR)
  • Photochemical degradation
  • Reaction kinetics

Cite this

Li, Lei ; Gao, Nai Yun ; Deng, Yang ; Yao, Juan Juan ; Zhang, Ke Jia ; Li, Hai Jun ; Yin, Di Di ; Ou, Hua Se ; Guo, Jian Wei. / Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water. In: Journal of Zhejiang University: Science A. 2009 ; Vol. 10, No. 11. pp. 1660-1669.
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abstract = "The degradation of Microcystin-LR (MC-LR) in water by hydrogen peroxide assisted ultraviolet (UV/H2O2) process was investigated in this paper. The UV/H2O2 process appeared to be effective in removal of the MC-LR. MC-LR decomposition was primarily ascribed to production of strong and nonselective oxidant-hydroxyl radicals within the system. The intensity of UV radiation, initial concentration of MC-LR, MC-LR purity, dosages of H2O2, the initial solution pH, and anions present in water, to some extent, influenced the degradation rate of MC-LR. A modified pseudo-first-order kinetic model was developed to predict the removal efficiency under different experimental conditions.",
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Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water. / Li, Lei; Gao, Nai Yun; Deng, Yang; Yao, Juan Juan; Zhang, Ke Jia; Li, Hai Jun; Yin, Di Di; Ou, Hua Se; Guo, Jian Wei.

In: Journal of Zhejiang University: Science A, Vol. 10, No. 11, 01.12.2009, p. 1660-1669.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water

AU - Li, Lei

AU - Gao, Nai Yun

AU - Deng, Yang

AU - Yao, Juan Juan

AU - Zhang, Ke Jia

AU - Li, Hai Jun

AU - Yin, Di Di

AU - Ou, Hua Se

AU - Guo, Jian Wei

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