| Full text | |
| Author(s): |
Graca, Catia A. L.
[1]
;
Dalle Lucca, Beatriz Arnaut
[2]
;
Cola, Priscila
[3]
;
Basso, Thiago O.
[3]
;
Teixeira, Antonio Carlos S. C.
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Porto, Lab Separat & React Engn Lab Catalysis & Mat, Fac Engn, Rua Dr Roberto Frias, P-4200465 Porto - Portugal
[2] Univ Sao Paulo, Res Grp Adv Oxidat Proc, Dept Chem Engn, Escola Politecn, Av Prof Lineu Prestes 580, Bloco 18 Conjunto Quim, BR-05434070 Sao Paulo - Brazil
[3] Univ Sao Paulo, Escola Politecn, Dept Chem Engn, Av Prof Lineu Prestes 580, Bloco 18 Conjunto Quim, BR-05434070 Sao Paulo - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | JOURNAL OF ENVIRONMENTAL ENGINEERING; v. 146, n. 12 DEC 1 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
The consumption of veterinary drugs has grown over the past decades as a consequence of the increasing global demand for food. However, the nonmetabolized fraction of these drugs ends up in the environment through animal excretion, with substantial adverse effects on the environment. Therefore, novel and effective water and wastewater treatment techniques capable of eliminating these pollutants are urgently needed. To this end, advanced oxidation processes (AOPs) are promising alternatives for this purpose. Fenton reactions are among the most studied AOPs, although they present some practical restrictions due to iron low solubility at environmental pH. Thus, the use of irradiated Fe(III)-carboxylates emerges as a possible solution to overcome this drawback. The aim of this study is to investigate the possibility of using UVA-irradiated Fe(III)-tartrate complex as a source of Fe(II) in a photo-Fenton-like reaction, for degrading the veterinary drug enrofloxacin (ENR). ENR removal was studied for different Fe(III) to tartrate proportions and pH, which were varied according to a Doehlert experimental design. Results indicate that higher tartrate concentrations enable the pH extension up to neutral, which potentiates the application of the studied process in real water matrices. Moreover, antimicrobial assays with Vibrio fischeri and Lacto bacillus, performed with untreated and treated ENR solutions, showed that antibiotic removal does not necessarily lead to toxicity removal. Further investigation is thus required to correlate the toxicity results to ENR degradation products. (AU) | |
| FAPESP's process: | 18/17172-2 - How do fuel ethanol yeasts and contaminating lactic acid bacteria respond toward lignocellulosic-derived inhibitors? |
| Grantee: | Thiago Olitta Basso |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/50218-2 - CEPEMA - Cooperative Center of Environmental Engineering |
| Grantee: | Claudio Augusto Oller do Nascimento |
| Support Opportunities: | Research Projects - Thematic Grants |