Effects of sediment pretreatment on the performance of sediment microbial fuel cells
2011
Song, Tian-Shun | Jiang, He-Long
In the present study, the effects of different pretreatment methods for sediments on the performance of sediment microbial fuel cells (SMFCs) were evaluated. Autoclaved (30 and 60min), and heated (150°C, 3h) sediments demonstrated high power density, compared with control and heated (60°C, 3h) sediments. An SMFC with heated (60°C, 3h) sediment was found to easily form a biocathode. The power density of an SMFC with heated (150°C, 3h) sediment was 214mWm⁻² on day 24. Furthermore, autoclaved (30 and 60min) and heated (3h, 60 and 150°C) sediments accelerated the production of dissolved organic matter (DOM). The DOM in heated (60°C, 3h) sediments had larger molecular sizes. The present study demonstrates that SMFCs can have high power density and high loss on ignition removal efficiencies when produced from sediments by suitable pretreatment methods.
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