Figure 2
From: Effects of NaCl concentration on anode microbes in microbial fuel cells
Changes in R ext (a, d), E (b, e) and I (c, f) during the 100-day operation of the MFCs containing different NaCl concentrations. Data for the 0M-, 0.05M- and 0.1M-MFCs (red, blue and green symbols, respectively) are presented in a, b and c, while those for the 0.3M-, 0.6M- and 1.8M-MFCs (red, blue and green symbols, respectively) are presented in d, e and f.