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. 2008 Oct 3;74(23):7348–7355. doi: 10.1128/AEM.01639-08

FIG. 2.

FIG. 2.

(A) Limiting current density of the strain PCA (open diamond) and the enriched consortium (solid square) generated with 10 Ω of external resistor correlated with projected anode surface areas (on day 216 of the strain PCA and day 28 of the consortium). The curved lines show that there are inverse relationships between current density and anode surface area under ohmic loss-defined conditions when maximum currents are constant (3.7 mA of the G. sulfurreducens strain PCA and 5.0 mA of the consortium). The dashed lines show that limiting current densities reach 1,530 mA/m2 of the G. sulfurreducens strain PCA or 1,250 mA/m2 of the consortium when the anode surface area is less than 14 cm2 (PCA) or less than 36 cm2 (consortium). (B) Maximum power density of the G. sulfurreducens strain PCA and the consortium generated correlated with projected anode surface areas (on day 216 of the strain PCA and day 28 of the consortium).