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

Tomohiro Inaba; Mami Yamaguchi; Akira Taniguchi; Yuya Sato; Tomo Aoyagi; Tomoyuki Hori; Hiroyuki Inoue; Masahiko Fujita; Masanori Iwata; Yoshihiro Iwata; Hiroshi Habe

doi:10.2323/jgam.2022.04.003

This article has now been updated. Please use the final version.

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

Tomohiro Inaba, Mami Yamaguchi, Akira Taniguchi, Yuya Sato, Tomo Aoyagi, Tomoyuki Hori, Hiroyuki Inoue, Masahiko Fujita, Masanori Iwata, Yoshihiro Iwata, Hiroshi Habe

Author information

Tomohiro Inaba
Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
Mami Yamaguchi
Textile Technology Center, Ehime Institute of Industrial Technology
Akira Taniguchi
Aiken Kakoki K. K
Yuya Sato
Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
Tomo Aoyagi
Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
Tomoyuki Hori
Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
Hiroyuki Inoue
Textile Technology Center, Ehime Institute of Industrial Technology
Masahiko Fujita
Textile Technology Center, Ehime Institute of Industrial Technology
Masanori Iwata
Aiken Kakoki K. K
Yoshihiro Iwata
Aiken Kakoki K. K
Hiroshi Habe
Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)

Keywords: anaerobic granular sludge, decolorization, expanded granular sludge bed reactor, microbial community structure, textile dyes

JOURNAL FREE ACCESS Advance online publication
Supplementary material

Article ID: 2022.04.003

DOI https://doi.org/10.2323/jgam.2022.04.003

The final version of this article is now available: Vol. 68 (2022), No. 5 pp. 242-247

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Abstract

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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