Photolysis of polycyclic aromatic hydrocarbons in water

The decomposition of benzo[a]pyrene (BAP), chrysene (CHR) and fluorene (FLU) in an aqueous solution by means of photolysis has been studied. The influence of initial polycyclic aromatic hydrocarbons’ (PAHs) concentration, pH of the reaction mixture, temperature, presence of oxygen and tert-butyl alc...

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Veröffentlicht in:	Water research (Oxford) 2001, Vol.35 (1), p.233-243
Hauptverfasser:	Miller, Jacek S, Olejnik, Dorota
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Benzo(a)pyrene Biological and physicochemical phenomena chrysene Chrysenes Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Exact sciences and technology fluorene Fluorenes Hydrogen-Ion Concentration Kinetics Models, Chemical Natural water pollution Oxygen Photochemistry - instrumentation Photochemistry - methods Photolysis photooxidation Pollution Pollution, environment geology polycyclic aromatic hydrocarbons (PAHs) Polycyclic Aromatic Hydrocarbons - chemistry Polycyclic Aromatic Hydrocarbons - isolation & purification tert-Butyl Alcohol Thermodynamics Water Pollutants, Chemical - isolation & purification Water Purification - methods Water treatment and pollution
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Beschreibung
Zusammenfassung:	The decomposition of benzo[a]pyrene (BAP), chrysene (CHR) and fluorene (FLU) in an aqueous solution by means of photolysis has been studied. The influence of initial polycyclic aromatic hydrocarbons’ (PAHs) concentration, pH of the reaction mixture, temperature, presence of oxygen and tert-butyl alcohol ( t-BuOH) on the degradation rate has been observed. BAP and CHR are decomposed by a mechanism different than FLU. Quantum yields of the photolytic decomposition of BAP, CHR and FLU were determined and equal 0.014, 0.0031 and 0.0038, respectively.
ISSN:	0043-1354 1879-2448
DOI:	10.1016/S0043-1354(00)00230-X