Characterizing the structure of aerobic granular sludge using ultra-high field magnetic resonance (original) (raw)
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Specific methanogenic activity Structural changes of anaerobic granular sludge a b s t r a c t Due to unspecified operational problems, the specific acetoclastic activity (SAA) of the anaerobic granular sludge present in an industrial UASB reactor was considerably damaged (from 250 to less than 10 mL CH 4 @STP/gVSS.d), significantly reducing the biogas production of that industrial unit. The hydrogenotrophic methanogenic activity exhibited a value of 600 mL CH4@STP/gVSS.d, the settling velocity was 31.479.8 m/h, the average equivalent diameter was 0.9270.43 mm, and about 70% of the VSS were structured in aggregates larger than 1 mm.