The influent concentration fluctuated greatly, in the range of
247–449 mg/L for COD (Fig. 1). In general, there was no significant
decrease in the COD removal for IAFMBR when temperature
dropped from 35 C to 25 C. When temperature dropped further
to 15 C, the COD removal decreased obviously (Fig. 1). The performance
of IAFMBR at different temperatures was summarized in
Table 1. The respective COD removal was 74.0 ± 3.7%, 67.1 ± 2.9%
and 51.1 ± 2.6% when temperature decreasing from 35, 25 to
15 C. The volumetric COD removal rate was 0.95, 0.81 and
0.73 gCOD/L d at 35, 25 and 15 C, respectively. The COD removal
efficiency was the highest at 35 C, and then dropped with the
decreasing temperature. In contrast, one point should be noted,
The influent concentration fluctuated greatly, in the range of247–449 mg/L for COD (Fig. 1). In general, there was no significantdecrease in the COD removal for IAFMBR when temperaturedropped from 35 C to 25 C. When temperature dropped furtherto 15 C, the COD removal decreased obviously (Fig. 1). The performanceof IAFMBR at different temperatures was summarized inTable 1. The respective COD removal was 74.0 ± 3.7%, 67.1 ± 2.9%and 51.1 ± 2.6% when temperature decreasing from 35, 25 to15 C. The volumetric COD removal rate was 0.95, 0.81 and0.73 gCOD/L d at 35, 25 and 15 C, respectively. The COD removalefficiency was the highest at 35 C, and then dropped with thedecreasing temperature. In contrast, one point should be noted,
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