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Comparative analysis of UV-C/H2O2 and UV-A/TiO2 processes for the degradation of diclofenac in waterDaria Juretic Perisic,
Marin Kovacic,
Hrvoje Kušić,
Urška Lavrenčič Štangar,
Vedrana Marin,
Ana Lončarić Božić, 2016, izvirni znanstveni članek
Opis: The study investigates the treatment of diclofenac (DCF), a pharmaceutical
included in the first watch list of the European Water Framework Directive
as a new potential priority substance in water. Since the conventional wastewater
treatment technologies do not efficiently remove DCF, advanced treatment technologies
capable of its complete removal or destruction of its biological activity,
need to be evaluated and eventually employed. For that purpose, typical representatives
of photooxidative and photocatalytic advanced oxidation processes were
applied. The effectiveness of UV-C/H2O2 and UV-A/TiO2 were compared regarding
DCF conversion and mineralization kinetics, water quality parameters for
assessing biodegradability and toxicity. In spite of similar biodegradability profiles,
the obtained results indicate different DCF degradation pathways, which are
reflected in different profiles of toxicity towards Vibrio fischeri. The observed DCF
conversion and mineralization kinetics revealed the benefits of UV-C/H2O2 process.
However, lower toxicity favored the application of photocatalytic over photooxidative
treatment for DCF removal.
Ključne besede: Diclofenac, Photooxidation, Photocatalysis, Biodegradability, Toxicity
Objavljeno v RUNG: 21.07.2016; Ogledov: 5789; Prenosov: 0
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