Correlations between bacterial populations and process parameters in full-scale anaerobic digesters treating sewage sludge
SCIE
SCOPUS
- Title
- Correlations between bacterial populations and process parameters in full-scale anaerobic digesters treating sewage sludge
- Authors
- Shin, SG; Koo, T; Lee, J; Han, G; Cho, K; Kim, W; Hwang, S
- Date Issued
- 2016-08
- Publisher
- ELSEVIER
- Abstract
- Process parameters and bacterial populations were investigated in four full-scale anaerobic digesters treating sewage sludge. Although the four digesters were operated under similar conditions, digesters A and B had higher pH (7.2-7.4) and lipid removal efficiencies (> 50%) than C and D (pH 6.1-6.4; average lipid removal < 16%). Bacterial richness, diversity, and evenness were higher in digesters C and D. Among the top-populated genera, ten (group I) were more abundant in digesters A and/or B; they were putative syntrophic fatty acid or protein/amino acid-utilizers. In contrast, fifteen others (group II) were less abundant in A and/or B and included potentially dormant/dead cells originated from activated sludge. Despite the overall richness trend, the presence of the 25 genera in groups I/II was greater in digesters A and B (24) than in C and D (17); this observation suggests that group I bacteria might be essential in AD of sewage sludge. (C) 2016 Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37955
- DOI
- 10.1016/J.BIORTECH.2016.05.021
- ISSN
- 0960-8524
- Article Type
- Article
- Citation
- Bioresource Technology, vol. 214, page. 711 - 721, 2016-08
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- There are no files associated with this item.
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