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Dynamic Changes of Microbiome with the Utilization of Volatile Fatty Acids as Electron Donors for Denitrification

1
Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Korea
2
Department of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Korea
*
Author to whom correspondence should be addressed.
The first two authors listed share first authorship.
Academic Editor: Hongyu Ren
Water 2021, 13(11), 1556; https://doi.org/10.3390/w13111556
Received: 7 April 2021 / Revised: 21 May 2021 / Accepted: 27 May 2021 / Published: 31 May 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
Volatile fatty acids can be used as carbon sources for denitrification and are easily supplied as by-products from the anaerobic digestion of waste materials. Nitrification and denitrification processes were carried out in a single reactor feeding volatile fatty acids as electron donors and the changes in microbial communities in the reactor were investigated. The microbial communities in the alternating aerobic and anoxic systems were different, and their structure flexibly changed within one reactor. Bacteroidetes and Firmicutes were highly distributed during denitrification, whereas Proteobacteria was a major phylum during nitrification. In addition, in the denitrification system, the microbial community was substrate dependent. It showed the sequential nitrogen removal in one reactor and the microbial community also followed the change of environmental condition, cyclic nitrification, and denitrification. View Full-Text
Keywords: denitrification; fatty acids; high-strength nitrogen wastewater; cyclic nitrification and denitrification; microbial community structure denitrification; fatty acids; high-strength nitrogen wastewater; cyclic nitrification and denitrification; microbial community structure
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MDPI and ACS Style

Choi, O.; Cha, S.-j.; Kim, H.; Kim, H.; Sang, B.-I. Dynamic Changes of Microbiome with the Utilization of Volatile Fatty Acids as Electron Donors for Denitrification. Water 2021, 13, 1556. https://doi.org/10.3390/w13111556

AMA Style

Choi O, Cha S-j, Kim H, Kim H, Sang B-I. Dynamic Changes of Microbiome with the Utilization of Volatile Fatty Acids as Electron Donors for Denitrification. Water. 2021; 13(11):1556. https://doi.org/10.3390/w13111556

Chicago/Turabian Style

Choi, Okkyoung, Se-jin Cha, Hyunjin Kim, Hyunook Kim, and Byoung-In Sang. 2021. "Dynamic Changes of Microbiome with the Utilization of Volatile Fatty Acids as Electron Donors for Denitrification" Water 13, no. 11: 1556. https://doi.org/10.3390/w13111556

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