PMID: 11922072Apr 2, 2002Paper

Hydrogen peroxide photolysis, fenton reagent and photo-fenton for the degradation of nitrophenols: a comparative study

Chemosphere
Anna Goi, Marina Trapido

Abstract

The kinetics of the degradation of seven nitrophenols (2-nitrophenol, 4-nitrophenol, 2,5-dinitrophenol, 2,6-dinitrophenol, 2,4-dinitrophenol, 2-methyl-4,6-dinitrophenol, 4-methyl-2,6-dinitrophenol) with the Fenton reagent, photo-Fenton, and hydrogen peroxide photolysis was investigated. The efficiency and operating costs for the studied treatments were evaluated and compared. The Fenton reagent was found to be the most efficient and the cheapest way for the nitrophenols (NPs) degradation. The formation of nitrate as a result of mineralisation of organically bounded nitrogen was observed during the treatment of NPs with studied treatment processes. The degrees of organically bounded nitrogen conversion to nitrate after 90% degradation of NPs with the Fenton, photo-Fenton and hydrogen peroxide photolysis were 51-67%, 85-90%, and 50-60%, respectively. According to Daphnia magna acute toxicity test, the Fenton treatment led to complete detoxification of NPs.

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Citations

Feb 1, 2012·Environmental Science & Technology·Tingting Wu, James D Englehardt
Jul 8, 2009·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Fernando S García EinschlagJuan M Triszcz
Mar 8, 2013·Ultrasonics Sonochemistry·Manisha V BagalParag R Gogate
Jul 25, 2008·Journal of Hazardous Materials·A Zgajnar GotvajnJ Zagorc-Koncan
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Oct 13, 2004·Journal of Applied Toxicology : JAT·M Shani SeklerR S Marks
Nov 30, 2006·Journal of Hazardous Materials·Yao-Hui HuangChuh-Yung Chen
Nov 23, 2006·Chemosphere·F Follut, N Karpel Vel Leitner
Jul 28, 2006·Journal of Hazardous Materials·Yingxun DuLecheng Lei
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Mar 31, 2009·Journal of Agricultural and Food Chemistry·Xia Zeng, Ann T Lemley

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