PMID- 29289920
OWN - NLM
STAT- MEDLINE
DCOM- 20181015
LR  - 20181015
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 131
DP  - 2018 Mar 15
TI  - Achieving high-level nitrogen removal in mainstream by coupling anammox with 
      denitrifying anaerobic methane oxidation in a membrane biofilm reactor.
PG  - 196-204
LID - S0043-1354(17)31032-1 [pii]
LID - 10.1016/j.watres.2017.12.037 [doi]
AB  - To achieve energy neutral wastewater treatment, mainstream anaerobic ammonium 
      oxidation (anammox) has attracted extensive attention in the past decade. 
      However, the relatively high effluent nitrogen concentration (>10 mg N L(-1)) 
      remains a significant barrier hindering its practical implementation. A novel 
      technology integrating the anammox and denitrifying anaerobic methane oxidation 
      (DAMO) reactions in a membrane biofilm reactor (MBfR) was developed in this study 
      to enhance the mainstream anammox process. With the hydraulic retention time 
      (HRT) progressively decreased from 12 to 4 h, the total nitrogen (TN) removal 
      rate increased stepwise from 0.09 to 0.28 kg N m(-3) d(-1), with an effluent TN 
      concentration below 3.0 mg N L(-1) achieved. Mass balance analysis showed that 
      30-60% of the nitrate produced by the anammox reaction was reduced back to 
      nitrite by DAMO archaea, and the anammox and DAMO bacteria were jointly 
      responsible for nitrite removal with contributions of >90% and <10%, 
      respectively. Additionally, the established MBfR was robust and achieved 
      consistently high effluent quality with >90% TN removal when the influent nitrite 
      to ammonium molar ratio varied in the range of 1.17-1.55. Fluorescence in situ 
      hybridization (FISH) and 16S rRNA gene sequencing indicated that anammox 
      bacteria, DAMO bacteria and DAMO archaea jointly dominated the biofilm, and were 
      likely the key contributors to nitrogen removal. This is the first study that a 
      high nitrogen removal rate (>0.2 kg N m(-3) d(-1)) and satisfactory effluent 
      quality ( approximately 3 mg TN L(-1)) were achieved simultaneously by integrating anammox and 
      DAMO reactions in mainstream wastewater treatment.
CI  - Copyright (c) 2017 Elsevier Ltd. All rights reserved.
FAU - Xie, Guo-Jun
AU  - Xie GJ
AD  - Advanced Water Management Centre, The University of Queensland, St. Lucia, 
      Queensland 4072, Australia; State Key Laboratory of Urban Water Resource and 
      Environment, Harbin Institute of Technology, Harbin 150090, China.
FAU - Liu, Tao
AU  - Liu T
AD  - Advanced Water Management Centre, The University of Queensland, St. Lucia, 
      Queensland 4072, Australia.
FAU - Cai, Chen
AU  - Cai C
AD  - Advanced Water Management Centre, The University of Queensland, St. Lucia, 
      Queensland 4072, Australia.
FAU - Hu, Shihu
AU  - Hu S
AD  - Advanced Water Management Centre, The University of Queensland, St. Lucia, 
      Queensland 4072, Australia.
FAU - Yuan, Zhiguo
AU  - Yuan Z
AD  - Advanced Water Management Centre, The University of Queensland, St. Lucia, 
      Queensland 4072, Australia. Electronic address: zhiguo@awmc.uq.edu.au.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20171220
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Ammonium Compounds)
RN  - 0 (Membranes, Artificial)
RN  - 0 (Nitrates)
RN  - 0 (Nitrites)
RN  - 0 (RNA, Ribosomal, 16S)
RN  - 0 (Water Pollutants, Chemical)
RN  - N762921K75 (Nitrogen)
RN  - OP0UW79H66 (Methane)
SB  - IM
MH  - Ammonium Compounds/metabolism
MH  - Anaerobiosis
MH  - Archaea/genetics/metabolism
MH  - Bacteria/genetics/metabolism
MH  - Biofilms
MH  - *Bioreactors/microbiology
MH  - Denitrification
MH  - In Situ Hybridization, Fluorescence
MH  - Membranes, Artificial
MH  - Methane/*metabolism
MH  - Nitrates/metabolism
MH  - Nitrites/metabolism
MH  - Nitrogen/*metabolism
MH  - Oxidation-Reduction
MH  - RNA, Ribosomal, 16S/genetics
MH  - Waste Disposal, Fluid/*methods
MH  - Water Pollutants, Chemical/*metabolism
OTO - NOTNLM
OT  - Anammox
OT  - Denitrifying anaerobic methane oxidation
OT  - Mainstream
OT  - Membrane biofilm reactor
OT  - Nitrogen removal
EDAT- 2018/01/01 06:00
MHDA- 2018/10/16 06:00
CRDT- 2018/01/01 06:00
PHST- 2017/08/23 00:00 [received]
PHST- 2017/11/20 00:00 [revised]
PHST- 2017/12/17 00:00 [accepted]
PHST- 2018/01/01 06:00 [pubmed]
PHST- 2018/10/16 06:00 [medline]
PHST- 2018/01/01 06:00 [entrez]
AID - S0043-1354(17)31032-1 [pii]
AID - 10.1016/j.watres.2017.12.037 [doi]
PST - ppublish
SO  - Water Res. 2018 Mar 15;131:196-204. doi: 10.1016/j.watres.2017.12.037. Epub 2017 
      Dec 20.