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Development of bioelectrochemical systems using various biogas fermenter effluents as inocula and municipal waste liquor as adapting substrate

Bakonyi, Péter and Koók, László and Keller, Enikő and Bélafi-Bakó, Katalin and Rózsenberszki, Tamás and Saratale, Ganesh Dattatraya and Nguyen, Dinh Duc and Banu, J. Rajesh and Nemestóthy, Nándor (2018) Development of bioelectrochemical systems using various biogas fermenter effluents as inocula and municipal waste liquor as adapting substrate. BIORESOURCE TECHNOLOGY, 259. pp. 75-82. ISSN 0960-8524 (Unpublished)

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Abstract

The purpose of this research was to improve microbial fuel cell (MFC) performance – treating landfill-derived waste liquor – by applying effluents of various biogas fermenters as inocula. It turned out that the differences of initial microbial community profiles notably influenced the efficiency of MFCs. In fact, the adaptation time (during 3 weeks of operation) has varied significantly, depending on the source of inoculum and accordingly, the obtainable cumulative energy yields were also greatly affected (65% enhancement in case of municipal wastewater sludge inoculum compared to sugar factory waste sludge inoculum). Hence, it could be concluded that the capacity of MFCs to utilize the complex feedstock was heavily dependent on biological factors such as the origin/history of inoculum, the microbial composition as well as proper acclimation period. Therefore, these parameters should be of primary concerns for adequate process design to efficiently generate electricity with microbial fuel cells.

Item Type: Article
Subjects: T Technology / alkalmazott, műszaki tudományok > TD Environmental technology. Sanitary engineering / környezetvédelem, hulladékkezelés, egészségügyi mérnöki technika (ivóvízellátási és szennyvízkezelési technika)
Depositing User: Péter Bakonyi
Date Deposited: 06 Feb 2020 11:03
Last Modified: 06 Feb 2020 11:03
URI: http://real.mtak.hu/id/eprint/106195

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