Dépôt numérique
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Sonoelectrochemical oxidation of carbamazepine in waters: optimization using response surface methodology.

Tran, Nam; Drogui, Patrick; Brar, Satinder Kaur (2015). Sonoelectrochemical oxidation of carbamazepine in waters: optimization using response surface methodology. Journal of Chemical Technology & Biotechnology , vol. 90 , nº 5. p. 921-929. DOI: 10.1002/jctb.4399.

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Résumé

BACKGROUND

The decomposition of carbamazepine (CBZ) in synthetic solution and in municipal effluent was investigated using a sono-electrochemical reactor. Sono-electrolysis was conducted using two concentrical electrodes installed in a cylindrical reactor containing a ceramic transducer.

RESULTS

CBZ concentration (Cₒ=10 mg L⁻¹) optimally diminished up to 90% by applying a current intensity of 4.86 A for 177 min and by imposing an ultrasound power of 38.29 W. The optimal conditions were subsequently applied for tertiary treatment of municipal wastewater effluent contaminated with 10 µg CBZ L⁻¹. The reported removal efficiencies of CBZ, TOC, COD and colour were 93%, 60%, 93% and 86%, respectively. Likewise, the toxicity was completely removed (bacterium Vibrio fisheri) from the municipal wastewater effluent (>96%).

CONCLUSIONS

The advantages of coupling ultrasonication and electrooxidation (US-EO) treatment for CBZ removal were demonstrated. An experimental design methodology based on response surface methodology was applied to determine the optimal experimental conditions in terms of cost/effectiveness of removal.

Type de document: Article
Mots-clés libres: cabarmazepine;sonoelectrochemical;ultrasonication;electrooxidation
Centre: Centre Eau Terre Environnement
Date de dépôt: 23 avr. 2018 20:25
Dernière modification: 23 avr. 2018 20:25
URI: http://espace.inrs.ca/id/eprint/3945

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