PRJDB5140 Microbial community analysis of granules in upflow anaerobic sludge blanket reactor To elucidate the difference among granule microbial communities in UASB reactors, we attempted to analyze individual granule microbial communities using single-granule-level approach. Microbial community analysis of granules in upflow anaerobic sludge blanket reactor bioproject PRJDB5140 PRJDB5140 true To elucidate the difference among granule microbial communities in UASB reactors, we attempted to analyze individual granule microbial communities using single-granule-level approach.