کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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625339 | 1455427 | 2010 | 5 صفحه PDF | دانلود رایگان |
Electrochemical degradation of 4-chlorophenol was conducted using a reactor with granular graphite as the electrode material. The anode and cathode compartments of the reactor are separated with a Nafion 117 membrane. The reaction can be described with a pseudo-first-order reaction kinetics. The pseudo-first-order reaction rate constants, k, was approximately 0.19 h− 1 at a flow rate of 10 mL/min for all the applied currents. However, the degradation rate increased with flow rate, increasing from 0.13 h− 1 at a flow rate of 5 mL/min to 0.45 h− 1 at a flow rate of 30 mL/min. There was no significant correlation between reaction rate and applied current. The removal of 4-chlorophenol reached about 90% under all experimental conditions after 12 h, and reached 99% after 24 h at an applied current of 300 mA. Using the approach of this study, i.e., electrochemically degrading 4-chlorophenol without supporting electrolytes, could greatly reduce the amount of raw material needed and waste generated and hence, the total cost for treating wastewater containing 4-chlorophenol.
Journal: Desalination - Volume 264, Issues 1–2, 15 December 2010, Pages 92–96