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Degradation of acetonitrile through a sequence of microbial reactors

Håkansson, Kristina LU ; Welander, Ulrika LU and Mattiasson, Bo LU (2005) In Water Research 39(4). p.648-654
Abstract
Degradation of nitrogen containing organic compounds often leads to formation of ammonium and some low molecular weight organic compounds. The study is focused on degradation of acetonitrile in a sequence of stirred biofilm reactors, where the degradation of acetonitrile into acetic acid and ammonia takes place in the first two reactors. A large fraction of the acetic acid is also degraded in these reactors. The subsequent two reactors were introduced in order to take care of the ammonia, while a fifth reactor was a polishing step before the water was released to the recipient. From earlier studies it is known that the rate of acetonitrile degradation is approximately 80 g acetonitrile/(m(3) reactor h). In the present study nitrification... (More)
Degradation of nitrogen containing organic compounds often leads to formation of ammonium and some low molecular weight organic compounds. The study is focused on degradation of acetonitrile in a sequence of stirred biofilm reactors, where the degradation of acetonitrile into acetic acid and ammonia takes place in the first two reactors. A large fraction of the acetic acid is also degraded in these reactors. The subsequent two reactors were introduced in order to take care of the ammonia, while a fifth reactor was a polishing step before the water was released to the recipient. From earlier studies it is known that the rate of acetonitrile degradation is approximately 80 g acetonitrile/(m(3) reactor h). In the present study nitrification proceeded with 10g NH4+-N/(m(3) reactor h) and the denitrification by 35g NOx--N/ (m(3) reactor h). This means that the reactors involved in removal of the nitrogen component needs to be far larger than those dealing with degradation of the more complex molecules. (C) 2004 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Water Research
volume
39
issue
4
pages
648 - 654
publisher
Elsevier
external identifiers
  • wos:000227273000016
  • scopus:13544261613
ISSN
1879-2448
DOI
10.1016/j.watres.2004.10.016
language
English
LU publication?
yes
id
92365f14-400e-4575-ae74-aa3d6cef93a1 (old id 155200)
date added to LUP
2007-07-02 11:15:32
date last changed
2017-06-25 04:30:26
@article{92365f14-400e-4575-ae74-aa3d6cef93a1,
  abstract     = {Degradation of nitrogen containing organic compounds often leads to formation of ammonium and some low molecular weight organic compounds. The study is focused on degradation of acetonitrile in a sequence of stirred biofilm reactors, where the degradation of acetonitrile into acetic acid and ammonia takes place in the first two reactors. A large fraction of the acetic acid is also degraded in these reactors. The subsequent two reactors were introduced in order to take care of the ammonia, while a fifth reactor was a polishing step before the water was released to the recipient. From earlier studies it is known that the rate of acetonitrile degradation is approximately 80 g acetonitrile/(m(3) reactor h). In the present study nitrification proceeded with 10g NH4+-N/(m(3) reactor h) and the denitrification by 35g NOx--N/ (m(3) reactor h). This means that the reactors involved in removal of the nitrogen component needs to be far larger than those dealing with degradation of the more complex molecules. (C) 2004 Elsevier Ltd. All rights reserved.},
  author       = {Håkansson, Kristina and Welander, Ulrika and Mattiasson, Bo},
  issn         = {1879-2448},
  language     = {eng},
  number       = {4},
  pages        = {648--654},
  publisher    = {Elsevier},
  series       = {Water Research},
  title        = {Degradation of acetonitrile through a sequence of microbial reactors},
  url          = {http://dx.doi.org/10.1016/j.watres.2004.10.016},
  volume       = {39},
  year         = {2005},
}