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Titolo:
Comparison among Fenton-related processes to remove 2,4-dinitrophenol
Autore:
Wang, TH; Kang, SF; Lin, YH;
Indirizzi:
Tamkang Univ, Dept Water Resources & Environm Engn, Taipei, Taiwan TamkangUniv Taipei Taiwan er Resources & Environm Engn, Taipei, Taiwan Univ Saskatchewan, Saskatoon, SK S7N 5C9, Canada Univ Saskatchewan Saskatoon SK Canada S7N 5C9 skatoon, SK S7N 5C9, Canada
Titolo Testata:
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
fascicolo: 6, volume: 34, anno: 1999,
pagine: 1267 - 1281
SICI:
1093-4529(1999)34:6<1267:CAFPTR>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER-TREATMENT; PHOTOCHEMICAL DECOMPOSITION; ORGANIC POLLUTANTS; HYDROGEN-PEROXIDE; OH RADICALS; DEGRADATION; PHOTOLYSIS; OXIDATION; PHOTODEGRADATION; NITROBENZENE;
Keywords:
advanced oxidation process; UV/H2O2; Fenton's reaction; photo-Fenton-type; photo-Fenton; 2,4-dinitrophenol; color;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, TH Tamkang Univ, Dept Water Resources & Environm Engn, Taipei, Taiwan Tamkang Univ Taipei Taiwan ces & Environm Engn, Taipei, Taiwan
Citazione:
T.H. Wang et al., "Comparison among Fenton-related processes to remove 2,4-dinitrophenol", J ENVIR S A, 34(6), 1999, pp. 1267-1281

Abstract

Several Fenton-related oxidative processes, UV/H2O2, Fenton reaction, Photo-Fenton-type, and Photo-Fenton have been compared to isolate the one that can effectively remove 2,4-dinitrophenol (DNP). The following criteria wereadopted to screen the best oxidative process in terms of removal of DNP: residual percentage of DNP, residual percentage of ADMI color value and residual percentage of dissolved organic carbon (DOC). Results show that the Photo-Fenton process outranks among others based on above-mentioned criteria. Initially, the Photo-Fenton process gives the same oxidative capability asthe Fenton reaction. As reaction progresses, the Photo-Fenton process outperforms others because the irradiation energy from UV light stimulates the regeneration of ferrous ion, resulting in more hydroxyl radicals released from H2O2, and further enhances the removal of DNP. In addition, The analysis of pseudo first-order rate constants indicates that the removal rate of DOC is the limiting step in the Photo-Fenton process.

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Documento generato il 29/09/20 alle ore 05:44:38