Evaluation of the photo-fenton reaction in the decomposition of tick residues

Química Nova

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