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Influence of process parameters on the effectiveness of photooxidative treatment of pharmaceuticals.
Markic, Marinko; Cvetnic, Matija; Ukic, Sime; Kusic, Hrvoje; Bolanca, Tomislav; Bozic, Ana Loncaric.
Afiliación
  • Markic M; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
  • Cvetnic M; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
  • Ukic S; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
  • Kusic H; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
  • Bolanca T; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
  • Bozic AL; a Faculty of Chemical Engineering and Technology , University of Zagreb , Zagreb , Croatia.
J Environ Sci Health A Tox Hazard Subst Environ Eng ; 53(4): 338-351, 2018 Mar 21.
Article en En | MEDLINE | ID: mdl-29173087
In this study, UV-C/H2O2 and UV-C/[Formula: see text] processes as photooxidative Advanced oxidation processes were applied for the treatment of seven pharmaceuticals, either already included in the Directive 2013/39/EU "watch list" (17α- ethynylestradiol, 17ß-estradiol) or with potential to be added in the near future due to environmental properties and increasing consumption (azithromycin, carbamazepine, dexamethasone, erythromycin and oxytetracycline). The influence of process parameters (pH, oxidant concentration and type) on the pharmaceuticals degradation was studied through employed response surface modelling approach. It was established that degradation obeys first-order kinetic regime regardless structural differences and over entire range of studied process parameters. The results revealed that the effectiveness of UV-C/H2O2 process is highly dependent on both initial pH and oxidant concentration. It was found that UV-C/[Formula: see text] process, exhibiting several times faster degradation of studied pharmaceuticals, is less sensitive to pH changes providing practical benefit to its utilization. The influence of water matrix on degradation kinetics of studied pharmaceuticals was studied through natural organic matter effects on single component and mixture systems.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Ultravioleta / Contaminantes Químicos del Agua / Preparaciones Farmacéuticas / Oxidantes / Purificación del Agua / Peróxido de Hidrógeno Tipo de estudio: Guideline Idioma: En Revista: J Environ Sci Health A Tox Hazard Subst Environ Eng Asunto de la revista: TOXICOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Croacia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Ultravioleta / Contaminantes Químicos del Agua / Preparaciones Farmacéuticas / Oxidantes / Purificación del Agua / Peróxido de Hidrógeno Tipo de estudio: Guideline Idioma: En Revista: J Environ Sci Health A Tox Hazard Subst Environ Eng Asunto de la revista: TOXICOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Croacia Pais de publicación: Reino Unido