We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Temperature-induced difference in microbial characterizations accounts for the fluctuation of sequencing batch biofilm reactor performance.
- Authors
Zhang, Shiyang; Zhong, Qingbo; Jiang, Yinghe; Li, Meng; Xia, Shibin
- Abstract
Generally, the purification performance of bioreactors could be influenced by temperature variation via shaping different microbial communities. However, the underlying mechanisms remain largely unknown. Here, the variation trends of microbial communities in three sequencing batch biofilm reactors (SBBRs) under four different temperatures (15, 20, 25, 30 °C) were compared. It was found that temperature increment led to an obvious enhancement in nutrient removal which was mainly occurred in the aerobic section. Meanwhile, distinct differences in dominant microbial communities or autotrophic nitrifiers were also observed. The performance of the SBBR reactors was closely associated with nitrifier communities since the treated wastewater was characterized by a severe lack of carbon sources (mean effluent COD ≤ 14.4 mg/L). Spearman correlation unraveled that: most of the differentiated microbes as well as the dominant potential functions were strongly associated with nutrient removal, indicating the temperature-induced difference in microbial community well explained the distinction in purification performance.
- Subjects
BATCH reactors; MICROBIAL communities; POTENTIAL functions; RANK correlation (Statistics); BIOREACTORS; UPFLOW anaerobic sludge blanket reactors; SEQUENCING batch reactor process
- Publication
Biodegradation, 2021, Vol 32, Issue 5, p595
- ISSN
0923-9820
- Publication type
Article
- DOI
10.1007/s10532-021-09955-w