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Type: Artigo de periódico
Title: Abamectin Degradation By Advanced Oxidation Processes: Evaluation Of Toxicity Reduction Using Daphnia Similis
Author: Guimaraes J.R.
Barbosa I.M.
Maniero M.G.
Rath S.
Abstract: This work evaluated the toxicity reduction of abamectin in an aqueous solution (500 μg L-1) undergoing to photolysis (UV), peroxidation (H2O2), peroxidation with ultraviolet radiation (UV/H 2O2), Fenton (Fe(II)/H2O2), and photo-Fenton (Fe(II)/UV/H2O2) processes. Toxicity trials were carried out using the microcrustacean Daphnia similis. Results were based on effective concentration, EC50 48 h. Using 1.0 mmol L-1 Fe (II) and 5.0 mmol L-1 H2O2 and a reaction time of 60 s, the ranking of efficiency for the degradation of abamectin was as follows: Photo- Fenton > Fenton > UV = UV/ H2O2 > H2O2. However, after a reaction time of 300 s, similar degradation was obtained for photo-Fenton, UV, and UV/H2O2 (more than 97%), while the Fenton process degraded 80% of the drug. With the exception of peroxidation, all of the processes evaluated were able to eliminate toxicity in 600 s of reaction (1.0 mmol L-1 Fe(II) and 5.0 mmol L-1 H2O2). © 2014 Science & Technology Network, Inc.
Citation: Journal Of Advanced Oxidation Technologies. , v. 17, n. 1, p. 82 - 92, 2014.
Rights: fechado
Identifier DOI: 
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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