thickness of the biofilm on the disc closest to the air inlet was
1.25 mm at the end of this phase, whereas the thickness of the biofilm
on the next four discs from the gas inlet were 1.0 mm, 0.7 mm,
0.45 mm and 0.42 mm, respectively. The pH of the liquid phase in
the reactor was maintained at 6.8 by changing the feed liquid daily.
No VOC concentration was observed in the liquid phase of the RBC
in the last 7 days of the start-up phase. No visible pressure drop
was observed across the reactor. The carbon, nitrogen, hydrogen
and sulfur content of the dried biomass was found to be 57%,
40%, 2.4% and 0.6%, respectively. The carbon and nitrogen percentages
were exactly identical to that of the dried biomass sample of
the circulating inoculum.
thickness of the biofilm on the disc closest to the air inlet was
1.25 mm at the end of this phase, whereas the thickness of the biofilm
on the next four discs from the gas inlet were 1.0 mm, 0.7 mm,
0.45 mm and 0.42 mm, respectively. The pH of the liquid phase in
the reactor was maintained at 6.8 by changing the feed liquid daily.
No VOC concentration was observed in the liquid phase of the RBC
in the last 7 days of the start-up phase. No visible pressure drop
was observed across the reactor. The carbon, nitrogen, hydrogen
and sulfur content of the dried biomass was found to be 57%,
40%, 2.4% and 0.6%, respectively. The carbon and nitrogen percentages
were exactly identical to that of the dried biomass sample of
the circulating inoculum.
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