Detailed comparison of bacterial communities during seasonal sludge bulking in a municipal wastewater treatment plant
文献类型：期刊论文
| 作者 | Wang, Ping; Yu, Zhisheng; Qi, Rong; Zhang, Hongxun |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2016-11-15 |
| 卷号 | 105页码:157-166 |
| 关键词 | Wastewater Treatment Plant Sludge Bulking Bacterial Community Filamentous Bacteria |
| DOI | 10.1016/j.watres.2016.08.050 |
| 英文摘要 | In this study, pyrosequencing combined with clone library analysis, qPCR, and fluorescent in situ hybridization (FISH) were performed to identify detailed changes of bacterial and filamentous bacterial communities in activated sludge (AS) in 3 types of typical AS samples: sludge bulking (B-AS), excessive bulking (EB-AS), and non-bulking (N-AS). Sludge bulking resulted in a decrease in total bacterial numbers from (6.4 +/- 0.18) x 10(8) gene copies/mL in N-AS to (2.4 +/- 0.22) x 10(8) in EB-AS and a decrease in bacterial diversity from 2757 OTUs in N-AS to 2217 OTUs in EB-AS. With the occurrence of sludge bulking, Actinobacteria and Firmicutes increased sharply, whereas Proteobacteria, which was the predominant phylum in N-AS, decreased markedly. In addition, Nitrospirae, a major lineage of the nitrite-oxidizing bacteria, had quite a low abundance in EB-AS (0.15%), while it was relatively high in N-AS (1.17%). On the other hand, filamentous bacteria accounted for 28.77% and 5.72% of total sequences in EB-AS and N-AS, respectively. More interestingly, 11 types of filamentous bacteria were always present in 3 types of typical AS samples from different stages of sludge bulking, and most of them enriched in EB-AS compared to N-AS. It is noteworthy that, in addition to the frequently reported filamentous bacteria such as Candidates M. parvicella and Tetrasphaera, novel filamentous species of Trichococcus might exist in this bulking WWTP. Our results reveal that sludge bulking are derived from diverse taxa, which expands previous understanding and provides new insight into the underlying complications of the bulking phenomenon in AS. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36114]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Ping,Yu, Zhisheng,Qi, Rong,et al. Detailed comparison of bacterial communities during seasonal sludge bulking in a municipal wastewater treatment plant[J]. WATER RESEARCH,2016,105:157-166. |
| APA | Wang, Ping,Yu, Zhisheng,Qi, Rong,&Zhang, Hongxun.(2016).Detailed comparison of bacterial communities during seasonal sludge bulking in a municipal wastewater treatment plant.WATER RESEARCH,105,157-166. |
| MLA | Wang, Ping,et al."Detailed comparison of bacterial communities during seasonal sludge bulking in a municipal wastewater treatment plant".WATER RESEARCH 105(2016):157-166. |
入库方式： OAI收割
来源：生态环境研究中心
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