Degradation of Ivermectin by Fenton and Photo-Fenton and Toxicity Test Using Daphnia similis

Author(s)

Dal Bosco, Sandra M. ^[1] ; Barbosa, Izabela M. ^[1] ; Candello, Fernando P. ^[1] ; Maniero, Milena G. ^[1] ; Rath, Susanne ^[2] ; Guimaraes, Jose R. ^[1]

Affiliation

^[1] Univ Campinas UNICAMP, Civil Engn Architecture & Urban Design Sch, BR-13083852 Campinas, SP - Brazil

^[2] Univ Campinas Unicamp, Inst Chem, BR-13084971 Campinas, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES; v. 14, n. 2, p. 292-301, JUL 2011.
• Web of Science Citations: 5

Abstract

This work evaluated the degradation of ivermectin, a veterinary drug widely used in the treatment of ectoparasites and endoparasites, and the removal of acute toxicity (using Daphnia similis) by Fenton (Fe(2+)/H(2)O(2)) and photo-Fenton (Fe(2+)/H(2)O(2)/UV) processes. Fe(2+) and hydrogen peroxide concentrations ranged from 0.25 to 1.0 mmol L(-1) and from 0.5 to 10.0 mmol L(-1), respectively. With Fenton's reagent, it was possible to reach 90% degradation efficiency in 600 s, while the photo-Fenton resulted in 99% for the same reaction time. Both processes achieved higher degradation rates in the first 60 seconds and the toxicity decreased along the reaction time. The photo-Fenton process was more efficient in reducing the drug concentration and the solution toxicity. (AU)

• FAPESP's process: 08/06470-0 - DEGRADATION OF VETERINARY DRUGS
• Grantee: José Roberto Guimarães
• Support Opportunities: Regular Research Grants