Image analysis, methanogenic activity and molecular biological techniques to monitor granular sludge from an egsb reactor fed with oleic acid

摘要

Morphological changes in anaerobic granular sludge fed with increasing loads of oleic acid were quantified byimage analysis. The combination of this technique with data on the accumulation of adsorbed long chain fatty acid give insightinto the mechanisms of sludge disintegration, flotation and washout The molecular characterization of microbial communityindicated that the bacterial domain was affected during sludge disintegration, flotation and washout. The archaeal domain wasless affected although no acetoclastic and only a residual hydrogenotrophic activity were detected at the end of the operation.