PMID- 23416586
OWN - NLM
STAT- MEDLINE
DCOM- 20130401
LR  - 20131121
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 67
IP  - 5
DP  - 2013
TI  - High nitrogen removal rate using ANAMMOX process at short hydraulic retention 
      time.
PG  - 968-75
LID - 10.2166/wst.2013.641 [doi]
AB  - The anaerobic ammonium oxidation (ANAMMOX) is a chemolithoautotrophic process, 
      which converts NH(4)(+) to N(2) using nitrite (NO(2)(-)) as the electron 
      acceptor. This process has very high nitrogen removal rates (NRRs) and is an 
      alternative to classical nitrification/denitrification wastewater treatment. In 
      the present work, a strategy for nitrogen removal using ANAMMOX process was 
      tested evaluating their performance when submitted to high loading rates and very 
      short hydraulic retention times (HRTs). An up-flow ANAMMOX column reactor was 
      inoculated with 30% biomass (v v(-1)) fed from 100 to 200 mg L(-1) of total N 
      (NO(2)(-)-N + NH(4)(+)-N) at 35  degrees C. After start-up and process stability the 
      maximum NRR in the up-flow anaerobic sludge blanket (UASB) reactor was 18.3 g-N 
      L(-1) d(-1) operated at 0.2 h of HRT. FISH (fluorescence in situ hybridization) 
      analysis and process stoichiometry confirmed that ANAMMOX was the prevalent 
      process for nitrogen removal during the experiments. The results point out that 
      high NRRs can be obtained at very short HRTs using up-flow ANAMMOX column reactor 
      configuration.
FAU - Casagrande, C G
AU  - Casagrande CG
AD  - Department of Chemical Engineering, Universidade Federal de Santa Catarina, 
      Florianopolis, SC, Brazil.
FAU - Kunz, A
AU  - Kunz A
FAU - De Pra, M C
AU  - De Pra MC
FAU - Bressan, C R
AU  - Bressan CR
FAU - Soares, H M
AU  - Soares HM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Anaerobiosis
MH  - Bacteria/*metabolism
MH  - In Situ Hybridization, Fluorescence
MH  - Nitrogen/*isolation & purification/metabolism
MH  - Oxidation-Reduction
EDAT- 2013/02/19 06:00
MHDA- 2013/04/02 06:00
CRDT- 2013/02/19 06:00
PHST- 2013/02/19 06:00 [entrez]
PHST- 2013/02/19 06:00 [pubmed]
PHST- 2013/04/02 06:00 [medline]
AID - 10.2166/wst.2013.641 [doi]
PST - ppublish
SO  - Water Sci Technol. 2013;67(5):968-75. doi: 10.2166/wst.2013.641.