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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1926
Title: Comparative study of electrocoagulation and electrochemical Fenton treatment of aqueous solution of benzoic acid (BA): Optimization of process and sludge analysis
Authors: Sandhwar V.K.
Prasad B.
Published in: Korean Journal of Chemical Engineering
Abstract: Benzoic acid containing synthetic solution was pretreated by acid precipitation at various pH (1-3) and temperature (15-60 °C). Pre-treated solution was further treated by electrocoagulation (EC) and electrochemical Fenton (EF) processes using iron anode and graphite cathode. Optimization of independent operating parameters, namely, initial pH: (3-11), current density (A/m2): (15.24-76.21), electrolyte concentration (mol/L): (0.03-0.07) and electrolysis time (min): (15-95) for EC process and pH: (1-5), current density (A/m2): (15.24-76.21), H2O2 concentration (mg/L): (100-500) and electrolysis time (min): (15-95) for EF process, was performed using central composite design (CCD) in response surface methodology (RSM). Maximum removal efficiencies of BA- 76.83%, 88.50%; chemical oxygen demand (COD) - 69.23%, 82.21% and energy consumption (kWh/kg COD removed) - 30.86, 21.15 were achieved by EC and EF processes, respectively, at optimum operating conditions. It was found that EF process is more efficient than EC process based on removal of BA and COD with lower energy consumption. The sludge obtained after EC and EF treatments was analyzed by XRD, FTIR, DTA/TGA and SEM/EDX techniques. © 2017, Korean Institute of Chemical Engineers, Seoul, Korea.
Citation: Korean Journal of Chemical Engineering (2017), 34(4): 1062-1072
URI: https://doi.org/10.1007/s11814-016-0343-8
http://repository.iitr.ac.in/handle/123456789/1926
Issue Date: 2017
Publisher: Springer New York LLC
Keywords: Benzoic Acid
Electrochemical Fenton
Electrocoagulation
Optimization
Sludge Analysis
ISSN: 2561115
Author Scopus IDs: 57193263981
15838004000
Author Affiliations: Sandhwar, V.K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Prasad, B., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Sandhwar, V.K.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: vksandhwar@gmail.com
Appears in Collections:Journal Publications [CH]

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