PMID- 29478660
OWN - NLM
STAT- MEDLINE
DCOM- 20180301
LR  - 20180301
IS  - 1001-0742 (Print)
IS  - 1001-0742 (Linking)
VI  - 64
DP  - 2018 Feb
TI  - Simultaneous Fe(III) reduction and ammonia oxidation process in Anammox sludge.
PG  - 42-50
LID - S1001-0742(17)30151-1 [pii]
LID - 10.1016/j.jes.2017.01.002 [doi]
AB  - In recent years, there have been a number of reports on the phenomenon in which 
      ferric iron (Fe(III)) is reduced to ferrous iron [Fe(II)] in anaerobic 
      environments, accompanied by simultaneous oxidation of ammonia to NO(2)(-), 
      NO(3)(-), or N(2.) However, studies on the relevant reaction characteristics and 
      mechanisms are rare. Recently, in research on the effect of Fe(III) on the 
      activity of Anammox sludge, excess ammonia oxidization has also been found. 
      Hence, in the present study, Fe(III) was used to serve as the electron acceptor 
      instead of NO(2)(-), and the feasibility and characteristics of Anammox coupled 
      to Fe(III) reduction (termed Feammox) were investigated. After 160days of 
      cultivation, the conversion rate of ammonia in the reactor was above 80%, 
      accompanied by the production of a large amount of NO(3)(-) and a small amount of 
      NO(2)(-). The total nitrogen removal rate was up to 71.8%. Furthermore, 
      quantities of Fe(II) were detected in the sludge fluorescence in situ 
      hybridization (FISH) and denaturated gradient gel electrophoresis (DGGE) analyses 
      further revealed that in the sludge, some Anammox bacteria were retained, and 
      some microbes were enriched during the acclimatization process. We thus deduced 
      that in Anammox sludge, Fe(III) reduction takes place together with ammonia 
      oxidation to NO(2)(-) and NO(3)(-) along with the Anammox process.
CI  - Copyright (c) 2017. Published by Elsevier B.V.
FAU - Li, Xiang
AU  - Li X
AD  - School of Environmental Science and Engineering, Suzhou University of Science and 
      Technology, Suzhou 215009, China.
FAU - Huang, Yong
AU  - Huang Y
AD  - School of Environmental Science and Engineering, Suzhou University of Science and 
      Technology, Suzhou 215009, China. Electronic address: yhuang@mail.usts.edu.cn.
FAU - Liu, Heng-Wei
AU  - Liu HW
AD  - School of Chemistry Biology and Material Engineering, Suzhou University of 
      Science and Technology, Suzhou 215009, China.
FAU - Wu, Chuan
AU  - Wu C
AD  - School of Environmental Science and Engineering, Suzhou University of Science and 
      Technology, Suzhou 215009, China.
FAU - Bi, Wei
AU  - Bi W
AD  - School of Chemistry Biology and Material Engineering, Suzhou University of 
      Science and Technology, Suzhou 215009, China.
FAU - Yuan, Yi
AU  - Yuan Y
AD  - School of Environmental Science and Engineering, Suzhou University of Science and 
      Technology, Suzhou 215009, China.
FAU - Liu, Xin
AU  - Liu X
AD  - School of Environmental Science and Engineering, Suzhou University of Science and 
      Technology, Suzhou 215009, China.
LA  - eng
PT  - Journal Article
DEP - 20170120
PL  - Netherlands
TA  - J Environ Sci (China)
JT  - Journal of environmental sciences (China)
JID - 100967627
RN  - 0 (Ferric Compounds)
RN  - 0 (Oxidants)
RN  - 0 (Sewage)
RN  - 7664-41-7 (Ammonia)
RN  - E1UOL152H7 (Iron)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Acclimatization
MH  - Ammonia/*chemistry/metabolism
MH  - Cell Respiration
MH  - Chemoautotrophic Growth
MH  - Denaturing Gradient Gel Electrophoresis
MH  - Environment
MH  - Ferric Compounds
MH  - In Situ Hybridization, Fluorescence
MH  - Iron/*chemistry/metabolism
MH  - Nitrogen
MH  - Oxidants
MH  - Oxidation-Reduction
MH  - Sewage/*microbiology
OTO - NOTNLM
OT  - Anammox coupled to Fe(III) reduction
OT  - Anammox sludge
OT  - Biological community analysis
OT  - Reaction characteristics
EDAT- 2018/02/27 06:00
MHDA- 2018/03/02 06:00
CRDT- 2018/02/27 06:00
PHST- 2016/08/12 00:00 [received]
PHST- 2016/12/20 00:00 [revised]
PHST- 2017/01/05 00:00 [accepted]
PHST- 2018/02/27 06:00 [entrez]
PHST- 2018/02/27 06:00 [pubmed]
PHST- 2018/03/02 06:00 [medline]
AID - S1001-0742(17)30151-1 [pii]
AID - 10.1016/j.jes.2017.01.002 [doi]
PST - ppublish
SO  - J Environ Sci (China). 2018 Feb;64:42-50. doi: 10.1016/j.jes.2017.01.002. Epub 
      2017 Jan 20.