Revista: | Scientia agricola |
Base de datos: | PERIÓDICA |
Número de sistema: | 000356910 |
ISSN: | 0103-9016 |
Autores: | Friedrich, Leidi Cecilia1 Zanta, Carmem Lucia de Paiva e Silva2 Machulek-Junior, Amilcar3 Silva, Volnir de Oliveira1 Quina, Frank Herbert1 |
Instituciones: | 1Universidade de Sao Paulo, Instituto de Quimica, Sao Paulo. Brasil 2Universidade Federal de Alagoas, Instituto de Quimica e Biotecnologia, Maceio, Alagoas. Brasil 3Universidade Federal de Mato Grosso, Centro de Ciencias Exatas e Tecnologia, Campo Grande, Mato Grosso do Sul. Brasil |
Año: | 2012 |
Periodo: | Nov-Dic |
Volumen: | 69 |
Número: | 6 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Experimental, analítico |
Resumen en inglés | The addition of Cu2+ ions to the classical Fenton reaction (Fe2+ plus H2O2 at pH 3) is found to accelerate the degradation of organic compounds. This synergic effect causes an approximately 15 % additional reduction of the total organic carbon (TOC), representing an overall improvement of the efficiency of the mineralization of phenol. Although Fe2+ exhibits a high initial rate of degradation, the degradation is not complete due to the formation of compounds refractory to the hydroxyl radical. The interference of copper ions on the degradation of phenol by the Fenton reaction was investigated. In the presence of Cu2+, the degradation is slower, but results in a greater reduction of TOC at the end of the reaction (t = 120 min). In the final stages of the reaction, when the Fe3+ in the solution is complexed in the form of ferrioxalate, the copper ions assume the role of the main catalyst of the degradation |
Disciplinas: | Ingeniería, Agrociencias |
Palabras clave: | Ingeniería química, Ingeniería agronómica, Fenoles, Iones inorgánicos, Degradación, Reacción de Fenton |
Keyword: | Engineering, Agricultural sciences, Chemical engineering, Agricultural engineering, Phenols, Inorganic ions, Degradation, Fenton reaction |
Texto completo: | Texto completo (Ver HTML) |