Table 1.

Parameters of the SSM-MFCs under the three tested conditions.

Conditions	Displacement volume	Volumetric scaling ratio	Electrodes heights	Cathode wet surface area	Cathode wet surface area scaling ratio	Hydraulic retention time
A	47 ± 2 ml	1	1 cm	≈19.2 cm2	1	≈2323 min
B	69 ± 3 ml	1.5	2 cm	≈28.8 cm2	1.5	≈2324 min
C	89 ± 1 ml	1.9	3 cm	≈48.0 cm2	2.5	≈2346 min