Performance of Klebsiella oxytoca to Generate Electricity from POME in Microbial Fuel Cell

Islam, M. Amirul and Khan, Maksudur R. and Yousuf, Abu and Cheng, C. K. and Woon, Chee Wai (2016) Performance of Klebsiella oxytoca to Generate Electricity from POME in Microbial Fuel Cell. In: MATEC Web of Conferences: UTP-UMP Symposium on Energy Systems 2015 (SES 2015) , 7 October 2015 , Universiti Teknologi Petronas (UTP), Bandar Seri Iskandar, Perak. pp. 1-6., 38 (03004). ISSN 2261-236X

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This study is aimed to evaluate the electricity generation from microbial fuel cell (MFC) and to analyze the microbial community structure of city wastewater and anaerobic sludge to enhance the MFC performance. MFCs, enriched with palm oil mill effluent (POME) were employed to harvest electricity by innoculating of Klebsiella oxytoca, collected from city wastewater and other microbes from anaerobic sludge (AS). The MFC showed maximum power density of 207.28 mW/m3 with continuous feeding of POME using microbes from AS. Subsequent replacement with Klebsiella oxytoca resulted maximum power density of 1236 mW/m3 by utilizing complex substrate POME which was six times higher as compared to MFC operated with AS. Based on Biolog gene III analysis, relatively higher abundance of Klebsiella oxytoca was detected in the city wastewater. Predominant microorganisms such as Gammaproteobacteria, Azospiraoryzae, Acetobacterperoxydans and Solimonasvariicoloris were isolated from palm oil anaerobic sludge as well as from biofilm of MFC. Enriched electrochemically active bacteria Klebsiella oxytoca showed better performance to generate electricity from complex POME substrates compare to AS. These results demonstrate that the power output of MFCs can be increased significantly using Klebsiella oxytoca.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Generate electricity; Effluents; Electrochemically active bacteria; Microorganisms; Microbial fuel cells
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Faculty of Engineering Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 12 Jan 2018 04:05
Last Modified: 12 Jan 2018 04:05
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