TY - JOUR T1 - Electricity generation and wastewater treatment of oil refinery in microbial fuel cells using Pseudomonas putida. AU - Majumder,Dip, AU - Maity,Jyoti Prakash, AU - Tseng,Min-Jen, AU - Nimje,Vanita Roshan, AU - Chen,Hau-Ren, AU - Chen,Chien-Cheng, AU - Chang,Young-Fo, AU - Yang,Tsui-Chu, AU - Chen,Chen-Yen, Y1 - 2014/09/22/ PY - 2014/06/12/received PY - 2014/09/08/revised PY - 2014/09/10/accepted PY - 2014/9/24/entrez PY - 2014/9/24/pubmed PY - 2015/6/24/medline SP - 16772 EP - 86 JF - International journal of molecular sciences JO - Int J Mol Sci VL - 15 IS - 9 N2 - Microbial fuel cells (MFCs) represent a novel platform for treating wastewater and at the same time generating electricity. Using Pseudomonas putida (BCRC 1059), a wild-type bacterium, we demonstrated that the refinery wastewater could be treated and also generate electric current in an air-cathode chamber over four-batch cycles for 63 cumulative days. Our study indicated that the oil refinery wastewater containing 2213 mg/L (ppm) chemical oxygen demand (COD) could be used as a substrate for electricity generation in the reactor of the MFC. A maximum voltage of 355 mV was obtained with the highest power density of 0.005 mW/cm² in the third cycle with a maximum current density of 0.015 mA/cm² in regard to the external resistor of 1000 Ω. A maximum coulombic efficiency of 6 × 10⁻²% was obtained in the fourth cycle. The removal efficiency of the COD reached 30% as a function of time. Electron transfer mechanism was studied using cyclic voltammetry, which indicated the presence of a soluble electron shuttle in the reactor. Our study demonstrated that oil refinery wastewater could be used as a substrate for electricity generation. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/25247576/Electricity_generation_and_wastewater_treatment_of_oil_refinery_in_microbial_fuel_cells_using_Pseudomonas_putida_ L2 - https://www.mdpi.com/resolver?pii=ijms150916772 DB - PRIME DP - Unbound Medicine ER -