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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Electrochemical production and use of free chlorine for pollutant removal: an experimental design approach

Texto completo
Autor(es):
Antonelli, Raissa [1] ; de Araujo, Karla Santos [2] ; Pires, Ricardo Francisco [2] ; de Toledo Fornazari, Ana Luiza [2] ; Granato, Ana Claudia [2, 1] ; Pointer Malpass, Geoffroy Roger [2, 1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Fed Triangulo Mineiro, Dept Engn Quim, Ave Dr Randolfo Borges Jr 1250, BR-38064200 Uberaba - Brazil
[2] Univ Fed Triangulo Mineiro, Programa Mestrado Profiss Inovacao Tecnol, Ave Dr Randolfo Borges Jr 1250, BR-38064200 Uberaba - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: ENVIRONMENTAL TECHNOLOGY; v. 40, n. 3, p. 321-328, 2019.
Citações Web of Science: 0
Resumo

The present paper presents the study of (1) the optimization of electrochemical-free chlorine production using an experimental design approach, and (2) the application of the optimum conditions obtained for the application in photo-assisted electrochemical degradation of simulated textile effluent. In the experimental design the influence of inter-electrode gap, pH, NaCl concentration and current was considered. It was observed that the four variables studied are significant for the process, with NaCl concentration and current being the most significant variables for free chlorine production. The maximum free chlorine production was obtained at a current of 2.33A and NaCl concentrations in 0.96moldm(-3). The application of the optimized conditions with simultaneous UV irradiation resulted in up to 83.1% Total Organic Carbon removal and 100% of colour removal over 180min of electrolysis. The results indicate that a systematic (statistical) approach to the electrochemical treatment of pollutants can save time and reagents. (AU)

Processo FAPESP: 14/02739-6 - Reuso de água em irrigação e aquicultura: inativação de fármacos e interferentes endócrinos pelo processo foto-fenton solar
Beneficiário:Eduardo Bessa Azevedo
Linha de fomento: Auxílio à Pesquisa - Regular