Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Author(s):
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]
Total Authors: 6
Affiliation:
[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
Total Affiliations: 2
Document type: Journal article
Source: ENVIRONMENTAL TECHNOLOGY; v. 40, n. 3, p. 321-328, 2019.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 14/02739-6 - Water reuse in irrigation and aquaculture: inactivation of pharmaceuticals and endocrine disruptors by solar photo-fenton
Grantee:Eduardo Bessa Azevedo
Support type: Regular Research Grants