Please wait a minute...
ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (11): 1660-1669    DOI: 10.1631/jzus.A0820642
Chemical and Energy Engineering     
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
State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; Department of Civil Engineering and Surveying, University of Puerto Rico, Mayaguez 00681, USA; Faculty of Material Science and Chemistry Engineering, China University of Geosciences, Wuhan 430074, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

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.

Key words： Microcystin-LR (MC-LR)      Hydrogen peroxide assisted ultraviolet (UV/H2O2) process      Hydroxyl radical      Reaction kinetics      Photochemical degradation     
Received: 04 September 2008     
CLC:  X524  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Hua-se OU
Jian-wei GUO
Lei LI
Nai-yun GAO
Yang DENG
Juan-juan YAO
Ke-jia ZHANG
Hai-jun LI
Di-di YIN
Cite this article:

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. Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(11): 1660-1669.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820642     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I11/1660

[1] Yong Nie, Xiao-jiang Liang, Mei-zhen Lu, Feng-wen Yu, Da-yong Gu, Min Min, Jian-bing Ji. Mass transfer and reaction kinetics of sulfuryl fluoride absorption with aqueous sodium hydroxide solutions[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2014, 15(7): 540-546.
[2] JIANG Cheng-chun, ZHANG Jia-fa. Progress and prospect in electro-Fenton process for wastewater treatment[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(7): 1118-1125.
[3] HAN Tong-chun. Gel time of calcium acrylate grouting material[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2004, 5(8): 928-931.