期刊
BIORESOURCE TECHNOLOGY
卷 174, 期 -, 页码 294-301出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.09.082
关键词
NH3-N removal; Ammonia-oxidizing bacterial activity (AOA); Ammonia-oxidizing bacteria (AOB)
资金
- Major Science and Technology Program for Water Pollution Control and Management [2013ZX07201007]
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2014DX03]
- Specialized Research Fund for the Doctoral Program of Higher Education [20112302110060]
- Funds for Creative Research Groups of China [51121062]
- National Science Funds of China [50978071]
The Static Sequencing Batch Worm Reactor (SSBWR) followed by the MBR (S-MBR) is one of the advanced excess sludge treatments. In this paper, the control MBR (C-MBR) and the SSBWR-MBR were operated in parallel to study the changes of NH3-N removal and ammonia oxidizing bacteria (AOB). The results showed that the capacity of NH3-N removal of the S-MBR was improved by the worm reactors along with the operation. The S-MBR was favorable because it selected for the higher activity of the ammonia oxidization and better cells appearance of the sludge. The five species (Nitrosomonas, Betaproteobacteria, Clostridium, Dechloromonas and Bacteria) were found to be significantly correlate with the ammonia oxidization functions and performance of NH3-N removal in the C-MBR and S-MBR. The Nitrosomonas, Betaproteobacteria and Dechloromonas remained and eventually enriched in the S-MBR played a primary role in the NH3-N removal of the S-MBR. (C) 2014 Elsevier Ltd. All rights reserved.
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