NDLI: Augmentation of air cathode microbial fuel cell performance using wild type Klebsiella variicola

Content Provider	Royal Society of Chemistry (RSC)
Author	Karim, Ahasanul Yousuf, Abu Islam, M. Amirul Cheng, Chin Kui Woon, Chee Wai Khan, Maksudur Rahman Ethiraj, Baranitharan
Copyright Year	2017
Abstract	In the present work, simultaneous power generation and wastewater treatment in the single chamber air cathode microbial fuel cell (MFC) have been enhanced by introducing wild-type Klebsiella variicola (K. variicola) as an efficient inoculum for the anode operated with palm oil mill effluent (POME). K. variicola was isolated from municipal wastewater (MWW) and identified using BIOLOG gene III analysis, PCR and sequencing. The performance of K. variicola in MFC was evaluated by polarization curve measurement, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) analysis. The MFC with K. variicola achieved a maximum power density of about 1.7 W m−3 which is comparatively higher than most widely used anaerobic sludge (215 mW m−3) as an inoculum whereas COD removal efficiency is (43%) lower than anaerobic sludge (74%). Moreover, K. variicola has the ability to produce electron shuttles and to form biofilms on the electrode surface which helps to significantly reduce the anode charge transfer (Rct) resistance compared to the anaerobic sludge. These results revealed the potential of K. variicola to be used in MFC.
Starting Page	4798
Ending Page	4805
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	8
Journal	RSC Advances
DOI	10.1039/c6ra24835g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Electrode Anode Cathode Watermill MWWPR Wastewater Anaerobic organism Polymerase chain reaction Cyclic voltammetry Palm oil Gene Electrochemistry Microbial fuel cell Klebsiella pneumoniae Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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