NDLI: Nitrogen source effects on the denitrifying anaerobic methane oxidation culture and anaerobic ammonium oxidation bacteria enrichment process

Content Provider	Springer Nature Link
Author	Fu, Liang Ding, Jing Lu, Yong Ze Ding, Zhao Wei Zeng, Raymond J.
Copyright Year	2017
Abstract	The co-culture system of denitrifying anaerobic methane oxidation (DAMO) and anaerobic ammonium oxidation (Anammox) has a potential application in wastewater treatment plant. This study explored the effects of permutation and combination of nitrate, nitrite, and ammonium on the culture enrichment from freshwater sediments. The co-existence of NO3 −, NO2 −, and NH4 + shortened the enrichment time from 75 to 30 days and achieved a total nitrogen removal rate of 106.5 mg/L/day on day 132. Even though ammonium addition led to Anammox bacteria increase and a higher nitrogen removal rate, DAMO bacteria still dominated in different reactors with the highest proportion of 64.7% and the maximum abundance was 3.07 ± 0.25 × 108 copies/L (increased by five orders of magnitude) in the nitrite reactor. DAMO bacteria showed greater diversity in the nitrate reactor, and one was similar to M. oxyfera; DAMO bacteria in the nitrite reactor were relatively unified and similar to M. sinica. Interestingly, no DAMO archaea were found in the nitrate reactor. This study will improve the understanding of the impact of nitrogen source on DAMO and Anammox co-culture enrichment.
Starting Page	3895
Ending Page	3906
Page Count	12
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	101
Issue Number	9
e-ISSN	14320614
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-02-06
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Denitrifying anaerobic methane oxidation Enrichment process Nitrogen source impact Microbial community Anammox Co-culture Microbiology Microbial Genetics and Genomics Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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