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

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....

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Veröffentlicht in:Environmental technology. - 1993. - 40(2019), 3 vom: 08. Jan., Seite 321-328
1. Verfasser: Antonelli, Raissa (VerfasserIn)
Weitere Verfasser: de Araújo, Karla Santos, Pires, Ricardo Francisco, Fornazari, Ana Luiza de Toledo, Granato, Ana Claudia, Malpass, Geoffroy Roger Pointer
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Chlorine photolysis electrochemical advanced oxidation processes experimental design photo-assisted electrochemical degradation simulated textile effluent Environmental Pollutants Water Pollutants, Chemical Chlorine 4R7X1O2820
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520 |a 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 2.33 A and NaCl concentrations in 0.96 mol dm-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 180 min of electrolysis. The results indicate that a systematic (statistical) approach to the electrochemical treatment of pollutants can save time and reagents 
650 4 |a Journal Article 
650 4 |a Chlorine photolysis 
650 4 |a electrochemical advanced oxidation processes 
650 4 |a experimental design 
650 4 |a photo-assisted electrochemical degradation 
650 4 |a simulated textile effluent 
650 7 |a Environmental Pollutants  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Chlorine  |2 NLM 
650 7 |a 4R7X1O2820  |2 NLM 
700 1 |a de Araújo, Karla Santos  |e verfasserin  |4 aut 
700 1 |a Pires, Ricardo Francisco  |e verfasserin  |4 aut 
700 1 |a Fornazari, Ana Luiza de Toledo  |e verfasserin  |4 aut 
700 1 |a Granato, Ana Claudia  |e verfasserin  |4 aut 
700 1 |a Malpass, Geoffroy Roger Pointer  |e verfasserin  |4 aut 
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