Evaluation of dye decolorization using anaerobic granular sludge from an expanded granular sludge bed based on spectrometric and microbiome analyses

[摘要] The decolorization of 11 dyes by granular sludgefrom an anaerobic expanded granular sludge bed(EGSB) reactor was evaluated. Biological decolor-ization of Reactive Red 21, 23, and 180, and ReactiveYellow 15，17,and 23 in model textile wastewaterwas observed for the first time after a 7-day incu-bation (over 94% decolorization).According to thesequencing analysis of 16S rRNA gene ampliconsfrom EGSB granular sludge, the operational taxo-nomic unit related to Paludibacter propionicigenesshowed the highest increase in relative abundanceratios in the presence of dyes (7.12 times on averageover 11 dyes) compared to those without dyes.

[学科分类] 微生物学和免疫学

[关键词] Azithromycin;gut microbiota;Mycoplasma pneumoniae pneumonia;16S rRNA