Table 3.

Diversity analysis of microbial community for clustering at 97% identity

Sample	Bacterial community					Archaeal community
	Chao	Shannon	Simpson	ACE	OTUs	Chao	Shannon	Simpson	ACE	OTUs
PBRM1	510	4.29	0.0447	503	486	21	1.16	0.5469	21	21
PBRM2	458	4.02	0.0384	449	408	24	0.37	0.8702	24	21
UASBM1	459	4.34	0.0297	459	446	21	1.65	0.3057	21	21
UASBM2	459	3.88	0.0832	453	416	33	0.96	0.5534	34	31
PBRH	253	2.45	0.1584	341	172	–	–	–	–	–
UASBH	70	1.38	0.3518	68	61	–	–	–	–	–