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Modeling electrodialysis and a photochemical process for their integration in saline wastewater treatment

Borges, Fulvia Jung and Roux-de Balmann, Hélène and Guardani, Roberto Modeling electrodialysis and a photochemical process for their integration in saline wastewater treatment. (2010) Brazilian Journal of Chemical Engineering, vol. 27 (n° 3). pp. 473-482. ISSN 0104-6632

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Abstract

Oxidation processes can be used to treat industrial wastewater containing non-biodegradable organic compounds. However, the presence of dissolved salts may inhibit or retard the treatment process. In this study, wastewater desalination by electrodialysis (ED) associated with an advanced oxidation process (photo-Fenton) was applied to an aqueous NaCl solution containing phenol. The influence of process variables on the demineralization factor was investigated for ED in pilot scale and a correlation was obtained between the phenol, salt and water fluxes with the driving force. The oxidation process was investigated in a laboratory batch reactor and a model based on artificial neural networks was developed by fitting the experimental data describing the reaction rate as a function of the input variables. With the experimental parameters of both processes, a dynamic model was developed for ED and a continuous model, using a plug flow reactor approach, for the oxidation process. Finally, the hybrid model simulation could validate different scenarios of the integrated system and can be used for process optimization.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Universidade de São Paulo - USP (BRAZIL)
Laboratory name:
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Deposited By: Audrey LEFEVRE
Deposited On:12 Jun 2012 14:17

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