A novel heterotrophic nitrifying and aerobic denitrifying bacterium, Zobellella taiwanensis DN-7, can remove high-strength ammonium
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- 作者：Yu Lei ; Yangqing Wang ; Hongjie Liu ; Chuanwu Xi…
- 关键词：Zobellella taiwanensis DN ; 7 ; Heterotrophic nitrification ; Aerobic denitrification ; High ; strength ammonium removal
- 刊名：Applied Microbiology and Biotechnology
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：100
- 期：9
- 页码：4219-4229
- 全文大小：612 KB
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Yangqing Wang (1)
Hongjie Liu (1)
Chuanwu Xi (2)
Liyan Song (1)
1. Environmental Microbiology and Ecology Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Science, Chongqing, 400714, China
2. Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, 48109, USA - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Biotechnology
Microbiology
Microbial Genetics and Genomics - 出版者：Springer Berlin / Heidelberg
- ISSN：1432-0614
文摘
A novel heterotrophic bacterium capable of heterotrophic nitrification and aerobic denitrification was isolated from ammonium contaminated landfill leachate and physiochemical and phylogenetically identified as Zobellella taiwanensis DN-7. DN-7 converted nitrate, nitrate, and ammonium to N2 as the primary end product. Single factor experiments suggested that the optimal conditions for ammonium removal were trisodium citrate as carbon source, C/N ratio 8, pH 8.0–10.0, salinity less than 3 %, temperature 30 °C, and rotation speed more than 150 rpm. Specifically, DN-7 could remove 1000.0 and 2000.0 mg/L NH4 +-N completely within 96 and 216 h, with maximum removal rates of 19.6 and 17.3 mg L−1 h−1, respectively. These results demonstrated that DN-7 is a promising candidate for application of high-strength ammonium wastewater treatments.