Ultrasonic power improvement of flumequine degradation effectiveness in aqueous solution via direct and indirect action of mechanical acoustic wave

Malek Harrabi; Hafedh Belhadj Ammar; Khadija Mbarki; Ikram Naifar; Chiraz Yaiche; Fatma Aloulou; Boubaker Elleuch

doi:10.1016/j.ultsonch.2018.06.004

Ultrasonic power improvement of flumequine degradation effectiveness in aqueous solution via direct and indirect action of mechanical acoustic wave

Ultrason Sonochem. 2018 Nov:48:517-522. doi: 10.1016/j.ultsonch.2018.06.004. Epub 2018 Jul 20.

Authors

Malek Harrabi¹, Hafedh Belhadj Ammar², Khadija Mbarki¹, Ikram Naifar¹, Chiraz Yaiche¹, Fatma Aloulou¹, Boubaker Elleuch¹

Affiliations

¹ National School of Engineering Sfax, GEET, Tunisia.
² Department of Chemistry, Faculty of Sciences of Sfax, University of Sfax, Tunisia. Electronic address: hbelhadammar@yahoo.fr.

PMID: 30080580
DOI: 10.1016/j.ultsonch.2018.06.004

Abstract

The current research work aimed to describe the roles of ultrasonic power under sono-Fenton process in the degradation of flumequine (FLU) in water. For this purpose, the effects of some parameters including temperature, ferrous ion concentration, chemical oxidant concentration (S₂O₈^2- and Cl^-) and the initial pH value of the reaction kinetics were investigated. Results showed that the degradation of FLU antibiotic was accelerated by ultrasonic irradiation and the presence of an inorganic oxidant. The sono-generation of active species such as hydroxyl radicals (HO and HOO) and sulfate radicals (SO₄^-) as strong oxidizing agents improved the FLU degradation. In fact, the peroxydisulfate anion (S₂O₈^2-) has been identified as among parameters that enhanced the degradation process. Under optimal conditions, 98% of the flumequine removal was carried out within 80 min at 60 °C.

Keywords: Active chlorine; Cavitations; Clean energy; Flumequine; Sulfate radicals.