期刊
JOURNAL OF GENERAL AND APPLIED MICROBIOLOGY
卷 68, 期 5, 页码 242-247出版社
MICROBIOL RES FOUNDATION
DOI: 10.2323/jgam.2022.04.003
关键词
anaerobic granular sludge; decolorization; expanded granular sludge bed reactor; microbial community structure; textile dyes
This study evaluated the decolorization effect of granular sludge from an anaerobic expanded granular sludge bed (EGSB) reactor on 11 dyes, and observed for the first time a decolorization rate of over 94% for the dyes in model textile wastewater. Sequencing analysis revealed that the operational taxonomic unit related to Paludibacter propionicigenes showed the highest increase in abundance ratios in the presence of dyes.
The decolorization of 11 dyes by granular sludge from an anaerobic expanded granular sludge bed (EGSB) reactor was evaluated. Biological decolorization of Reactive Red 21, 23, and 180, and Reactive Yellow 15, 17, and 23 in model textile wastewater was observed for the first time after a 7-day incubation (over 94% decolorization). According to the sequencing analysis of 16S rRNA gene amplicons from EGSB granular sludge, the operational taxonomic unit related to Paludibacter propionicigenes showed the highest increase in relative abundance ratios in the presence of dyes (7.12 times on average over 11 dyes) compared to those without dyes.
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