Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7079263 | Bioresource Technology | 2013 | 7 Pages |
Abstract
This work studied the operating parameters (pH, electrolyte concentration, initial phenol concentration, MFCs connection numbers and mode), adsorption isotherms and kinetics of a novel electrosorption driven by microbial fuel cells (MFC-Sorption) to remove phenol without external electric grid energy supply. It proved that high electrolyte concentration and low solution pH promoted the performance of phenol removal. 3 MFCs connections in series achieved a adsorption capacity of 1.76Â mmol/g, which was much higher than that in parallel connection (1.46Â mmol/g). Well fitted with Langmuir isotherm, the maximum adsorption capacity by MFC-Sorption and electrosorption was observed 48% and 65% higher than that by conventional adsorption. The phenol removal by MFC-Sorption was supposed to be more suitable for a pseudo-second-order kinetics, and with the increase of initial phenol concentration from 20Â mg/L to 300Â mg/L, the initial adsorption rate increased 26.99-fold. It concluded that the MFC-Sorption system could cost-effectively remove pollutant of phenol.
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Physical Sciences and Engineering
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Authors
Jie Yang, Minghua Zhou, Yingying Zhao, Chao Zhang, Youshuang Hu,