Interference of inorganic ions on phenol degradation by the Fenton reaction
Document title: Interference of inorganic ions on phenol degradation by the Fenton reaction
Journal: Scientia agricola
Database: PERIÓDICA
System number: 000356910
ISSN: 0103-9016
Authors: 1
2
3
1
1
Institutions: 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
Year:
Season: Nov-Dic
Volumen: 69
Number: 6
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract 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
Disciplines: Ingeniería,
Agrociencias
Keyword: 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
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