p-Nitrophenol degradation by electro-Fenton process: Pathway, kinetic model and optimization using central composite design

Chemosphere ◽  
2017 ◽  
Vol 185 ◽  
pp. 726-736 ◽  
Author(s):  
J. Meijide ◽  
E. Rosales ◽  
M. Pazos ◽  
M.A. Sanromán
Author(s):  
R. Deepa ◽  
G. Madhu ◽  
Roy M Thomas ◽  
V. Sivanandan Achari

In the present study, the three main process parameters in the Fenton process for the removal of pharmaceutical compound Mefenamic acid from an aqueous solution were optimized using response surface methodology (RSM). Central composite design (CCD) was used for process optimization. The primary and secondary interaction effects of the selected parameters such as H2O2, Fe2+ and pH on the removal of mefenamic acid were examined. A mathematical model for the removal process based on the selected variables was developed. The interaction effect between the chosen parameters shows that the removal of mefenamic acid was enhanced in the acidic pH range at a high concentration of H2O2 and in a medium concentration level of the catalyst Fe2+. The removal efficiency of 81.24% was obtained for mefenamic acid at the optimized condition of variables such as 9.36 mM H2O2, 0.058 mM Fe2+and at a pH value of 2.1.


2009 ◽  
Vol 00 (00) ◽  
pp. 090721051030036-8
Author(s):  
Jaleh Varshosaz ◽  
Solmaz Ghaffari ◽  
Mohammad Reza Khoshayand ◽  
Fatemeh Atyabi ◽  
Shirzad Azarmi ◽  
...  

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