SOLAR ENERGY ASSISTS SEDIMENT MICROBIAL FUEL CELL TO GENERATE GREEN ENERGY FROM LIQUID ORGANIC WASTE

Year 2022, Volume: 23 Issue: 2, 173 - 183, 28.06.2022

Onur Can Türker

https://doi.org/10.18038/estubtda.1031449

Abstract

Simultaneous liquid organic waste disposal and electricity generation were achieved by a solar-assist sediment microbial fuel cell (S-SMFC) in terms of an ecological and economical perspective. In this respect, 840 mL house environment liquid organic waste which contains 10% juice and 10% sugary tea were disposed by electrogenic bacteria and converted electricity with solar energy. A 100 F capacitor was easily charged 29 times with generated electricity. S-SMFC was disposed 10 mL more waste than control due to more electrical bacteria density on the graphite electrode. In this case, Proteobacteria and Firmucutes were categorized dominate bacteria groups, and they were found in the S-SMFC as 54% and 28%, respectively. Importantly, solar energy increased population density of these groups in the S-SMFC and the density on the graphite electrode increased more than 19% according to control. Some bacteria which were associated with electricity production in the S-SMFC were to Azospirillum fermentarium, Clostridium sp., Pseudomonas guangdongensis, Bacteroides sp., Azovibrio restrictus, Clostridium pascui, Levilinea saccharolytica, Seleniivibrio woodruffii, Geovibrio ferrireducens. Consequently, S-SMFC presents innovative, crucial and simple methodology in order to convert liquid organic waste into the green energy.

Keywords

Green energy, sediment microbial fuel cell, electrogenic bacteria, organic waste

Supporting Institution

Scientific and Technological Research Council of Turkey

Project Number

2200012

Thanks

The author would like to thank to Prof. Dr. Cengiz TÜRE (The Head of Ecology Section, Eskişehir Technical University, department of Biology and Dr. Anıl YAKAR (ECOWATT, Inc).

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