Nitrogen removal from wastewater by coupling anammox and methane-dependent denitrification in a membrane biofilm reactor

Shi, Ying, Hu, Shihu, Lou, Juqing, Lu, Peili, Keller, Jurg and Yuan, Zhiguo (2013) Nitrogen removal from wastewater by coupling anammox and methane-dependent denitrification in a membrane biofilm reactor. Environmental Science and Technology, 47 20: 11577-11583. doi:10.1021/es402775z


Author Shi, Ying
Hu, Shihu
Lou, Juqing
Lu, Peili
Keller, Jurg
Yuan, Zhiguo
Title Nitrogen removal from wastewater by coupling anammox and methane-dependent denitrification in a membrane biofilm reactor
Journal name Environmental Science and Technology   Check publisher's open access policy
ISSN 0013-936X
1520-5851
Publication date 2013-01-01
Sub-type Article (original research)
DOI 10.1021/es402775z
Volume 47
Issue 20
Start page 11577
End page 11583
Total pages 7
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2014
Language eng
Abstract This work demonstrates, for the first time, the feasibility of nitrogen removal by using the synergy of anammox and denitrifying anaerobic methane oxidation (DAMO) microorganisms in a membrane biofilm reactor (MBfR). The reactor was fed with synthetic wastewater containing nitrate and ammonium. Methane was delivered from the interior of hollow fibres in the MBfR to the biofilm that grew on the fiber's outer wall. After 24 months of operation, the system achieved a nitrate and an ammonium removal rate of about 190 mgN L -1 d-1 (or 86 mgN m-2 d-1, with m2 referring to biofilm surface area) and 60 mgN L-1 d-1 (27 mgN m-2 d-1), respectively. No nitrite accumulation was observed. Fluorescence in situ hybridization (FISH) analysis indicated that DAMO bacteria (20-30%), DAMO archaea (20-30%) and anammox bacteria (20-30%) jointly dominated the microbial community. Based on the known metabolism of these microorganisms, mass balance, and isotope studies, we hypothesize that DAMO archaea converted nitrate, both externally fed and produced by anammox, to nitrite, with methane as the electron donor. Anammox and DAMO bacteria jointly removed the nitrite produced, with ammonium and methane as the electron donor, respectively. The process could potentially be used for anaerobic nitrogen removal from wastewater streams containing ammonium and nitrate/nitrite.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Advanced Water Management Centre Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 45 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 50 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 02 Feb 2014, 07:46:05 EST by Professor Zhiguo Yuan on behalf of Advanced Water Management Centre