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Supplementary Information
Application of maximum power point tracking to increase the power
production and treatment efficiency of a continuously operated
flat-plate microbial fuel cell
Young Eun Song[a], Hitesh C. Boghani[b], Hong Suck Kim[c], Byung Goon Kim[c],
Taeho Lee[d], Byong-Hun Jeon[e], Giuliano C. Premier[b], Jung Rae Kim[a]*
[a]School of Chemical and Biomolecular Engineering, Pusan National University, Jangjeon-Dong, Geumjeong-gu, Busan, 46241, Korea
[b]Sustainable Environment Research Centre (SERC), Faculty of Computing, Engineering and Science, University of South Wales, Pontypridd, RCT, CF37 1DL, UK
[c]The MFC Research and Business Development (R&BD) Center, K-water Institute, Jeonmin-Dong, Yuseong-Gu, Daejeon, 34045, Korea
[d]Department of Civil and Environmental Engineering, Pusan National University, Busan, 46241, Korea[e]Department of Natural Resources and Environmental Engineering, Hanyang University, Seoul, 04763,
Korea
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Fig. S1. Configuration of MPPT control system, (a) Equipment for continuously fed flat-plate microbial fuel cell (FPM) with MPPT, (b) schematic diagram of flat-plate microbial fuel cell (FPM); C: Cathode, S: separator, A: Anode, (c) Internal circuit board and DAQ system box for MPPT control
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Fig. S2. Effect of organic loading rate on cyclic voltammetry while under MPPT operation (with OLR of 0.13, 0.25, 0.63, 1.25 and 2.38 gL-1h-1, respectively). (a) MPPT, (b) FLR (100 Ω)
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Fig. S3. Comparison of the acetate consumption and removal efficiency according to the different HRTs on the MPPT and FLR operations.
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Fig. S4. Effect of progressively lowered influent acetate concentration under MPPT operation (30℃, pH7, 10mM acetate (initial), 20 min HRT, 5 min sampling interval), (a) voltage and power change with MPPT, (b) acetate concentration and external load change under MPPT control.