Química Nova | |
Evaluation of the photo-fenton reaction in the decomposition of tick residues | |
Ferreira, Antônio Gilberto1  Nogueira, Ana Rita de Araujo1  Gromboni, Caio Fernando1  Kamogawa, Marcos Yassuo1  Embrapa Pecuária Sudeste, São Carlos, Brasil1  Universidade Federal de São Carlos, São Carlos, Brasil1  Universidade de São Paulo, Piracicaba, Brasil1  | |
关键词: photo-Fenton; pesticide residue; UV radiation.; | |
DOI : 10.1590/S0100-40422007000200004 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
Experimental procedures based on factorial design and surface response methodology were applied to establishe experimental conditions for the decomposition of a 1:400 (v/v) Supocade® (chlorfenvinphos 13.8% and cypermethrin 2.6%) solution, used to control cattle ticks. Experiments exploring photo-oxidative reactions were performed with and without UV radiation, fixing exposition time and pesticide volume, and varying the oxidant mixture. The use of 3.6 mmol L-1 Fe2+ plus 1.9 mol L-1 H2O2 plus UV radiation provided destruction of 94% of the original carbon content and reduction of aromatic, aliphatic and carbinolic compounds, evaluated by determination of residual carbon content by ICP OES and NMR analysis.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050593712ZK.pdf | 516KB | download |