Comparative analysis of UV-C/H2O2 and UV-A/TiO2 processes for the degradation of diclofenac in water

被引：13

作者：

Perisic, Daria Juretic ^{[1
]}

Kovacic, Marin ^{[1
]}

Kusic, Hrvoje ^{[1
]}

Stangar, Urska Lavrencic ^{[2
]}

Marin, Vedrana ^{[3
]}

Bozic, Ana Loncaric ^{[1
]}

机构：

[1] Univ Zagreb, Fac Chem Engn & Technol, Marulicev Trg 19, Zagreb 10000, Croatia

[2] Univ Nova Gorica, Environm Res Lab, Vipavska 13, Nova Gorica 5000, Slovenia

[3] EnCor Biotechnol, 4949 SW 41st Blvd S40, Gainesville, FL 32608 USA

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2016年 / 118卷 / 02期

关键词：

Diclofenac; Photooxidation; Photocatalysis; Biodegradability; Toxicity; WASTE-WATER; PHOTOOXIDATIVE DEGRADATION; PHARMACEUTICAL COMPOUNDS; PHOTOCATALYSIS; REMOVAL;

D O I：

10.1007/s11144-016-1027-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：451 / 462

页数：12

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