期刊
BIORESOURCE TECHNOLOGY
卷 261, 期 -, 页码 394-402出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.04.048
关键词
Resuscitation-promoting factor; Activated sludge; Salt-tolerant phenol-degrading capability; Bacterial community; Viable but non-culturable state
资金
- Special Fund for the Zhejiang Research Academy of Environmental Science, China [2017F30030]
- National Natural Science Foundation of China, China [41701354]
- Natural Science Foundation of Zhejiang Province, China [LQ17D010002]
- Research Fund for the Doctoral Research of Key University, China [ZZ323205020516001108]
- Open Project of Zhejiang Province Key Laboratory of Environmental Pollution Control Technology
This study assumed that key degraders of functional bacterial community were prone to enter into the viable but non-culturable (VBNC) state under high saline phenolic conditions, and resuscitation-promoting factor (Rpf) could strengthen these degraders for better performances. Based on these assumptions, Rpf was used to enhance salt-tolerant phenol-degrading capability of functional populations in activated sludge. Results suggested that Rpf accelerated the start-up process during sludge domestication, and significantly enhanced salt-tolerant phenol-degrading capability. High-throughput sequencing showed that the resuscitation and stimulation functions of Rpf linked mainly to the genus Corynebacterium within the phylum Actinobacteria, and the genera Proteiniphilum and Petrimonas within the phylum Bacteroidete. These key functional populations contributed to better phenol-degrading capabilities under high salinity conditions. This study indicated that Rpf is a promising additive for improving biological treatment performance of saline phenolic wastewater.
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