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624012.fig.004a
(a)
624012.fig.004b
(b)
Figure 4: Flux during ultrafiltration of wastewater with and without pretreatment with activated carbon. Flux of (a) the UC005 membrane, and (b) the ETNA10 membrane. The curve “without carbon” in (b) originates from the “concentration of hemicelluloses” study. The hemicellulose concentration in the beginning and in the end of the experiments is shown in the figure.