Fig. 13. Representation of the inhibition termof hydrogen sulphide (SH2S) on all bacteria groups at a) 50, b) 240 and c) 580 days after starting operation. Unitless. This is a representation
of the term KSH2S_X/(KSH2S_X + SH2S) which multiplies themaximum growth rate of each bacteria group. Values close to 1 indicate that sulphide is not inhibiting the growth of bacteria
group X, while values close to zero indicate 100% inhibition. Note that the images are longitudinal cross sections of the wetland (as in Fig. 1) which have been deformed to fit a reasonable
size. The x-axis of each image represents the longitudinal direction of thewetland (from0 to 10.3 m) and the y-axis the depth of the wetland (from0 to 0.7 m). Also note that the
coloured areas of each image correspond to wetted areas, while the white areas correspond to areas without water. Note that water level decreases from inlet to outlet.