Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7068240 | Bioresource Technology | 2018 | 23 Pages |
Abstract
Electrochemically active anodic biofilm that has adapted under mild applied potentials in the range 100-500â¯mV was evaluated for its improved bioelectrogenesis and bioelectrochemical treatment of petroleum refinery wastewater (PRW) in a single chamber air cathode microbial fuel cell (MFC). MFC operation with 500â¯mV as supplemental voltage has exhibited a maximum power density of 132â¯mW/m2, which was three times higher than control MFC (45 mW/m2). Similarly, highest substrate removal efficiency (48%) was also obtained with the MFC of 500â¯mV, followed by 300â¯mV (37%), 100â¯mV (32%) and control (27%). Adaptation under applied potential conditions also exhibited enhanced degradation efficiency of diesel range organics (DROs)/straight chain-alkanes. The strategy efficiently reduced DROs with the maximum efficiency of 89% (500â¯mV), which is almost 50% higher than that of the control system (59%), demonstrating the effectiveness of using supplemented voltage in treating PRW.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Gunda Mohanakrishna, Ibrahim M. Abu-Reesh, Sanath Kondaveeti, Riyadh I. Al-Raoush, Zhen He,