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Kinetics and optimization on discoloration of dyeing wastewater by schorl-catalyzed fenton-like reaction
- Source :
- Journal of the Serbian Chemical Society, Vol 79, Iss 3, Pp 361-377 (2014)
- Publication Year :
- 2014
- Publisher :
- Serbian Chemical Society, 2014.
-
Abstract
- Kinetics and optimization on the discoloration of an active commercial dye, Argazol Blue BFBR (ABB) by heterogeneous Fenton-like reaction catalyzed by natural schorl were investigated in this study. Kinetic investigations revealed that the first-order kinetic model was more favorable to describe the discoloration of ABB at different reaction conditions than the second-order and Behnajady-Modirshahla-Ghanbery models. The relationship between the reaction rate constant k and reaction temperature T followed the Arrhenius equation, with the apparent activation energy Ea of 51.31kJ•mol-1. The central composite design under the response surface methodology was employed for the experimental design and optimization of the ABB discoloration process. The significance of a second order polynomial model for predicting the optimal values of ABB discoloration was evaluated by the analysis of variance and 3D response surface plots for the interactions between two variables were constructed. Then, the optimum conditions were determined.
Details
- Language :
- English
- ISSN :
- 03525139 and 18207421
- Volume :
- 79
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of the Serbian Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.4d4b2e7f3694628a0f2fdc6f362dfd8
- Document Type :
- article
- Full Text :
- https://doi.org/10.2298/JSC130225075X