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Contribution of suspended and sorbed groundwater bacteria to degradation of dissolved and sorbed aniline

Bengtsson, Göran LU and Carlsson, Christel LU (2001) In Applied Microbiology and Biotechnology 57(1-2). p.234-241
Abstract
The influence of sorption on the mineralisation of 50 mug aniline l(-1) was examined in an aquifer material under batch conditions. The study was designed to distinguish the rates and extent of biodegradation of the sorbed and the dissolved trace organic and the contribution of sorbed and suspended bacteria to the degradation. Four different mathematical models were developed with different assumptions about the partitioning of aniline degradation and bacterial activity between the solid and the aqueous phases. The models were developed by combining an expression for logistic growth of the degrading population with Michaelis-Menten kinetics for the transformation of aniline. It was tested by a series of laboratory experiments conducted... (More)
The influence of sorption on the mineralisation of 50 mug aniline l(-1) was examined in an aquifer material under batch conditions. The study was designed to distinguish the rates and extent of biodegradation of the sorbed and the dissolved trace organic and the contribution of sorbed and suspended bacteria to the degradation. Four different mathematical models were developed with different assumptions about the partitioning of aniline degradation and bacterial activity between the solid and the aqueous phases. The models were developed by combining an expression for logistic growth of the degrading population with Michaelis-Menten kinetics for the transformation of aniline. It was tested by a series of laboratory experiments conducted with C-14-labelled aniline, aseptically treated aquifer sand and filter-sterilised groundwater in different proportions and bacteria isolated from pristine groundwater. Model evaluation of the experimental data suggested that the fate of aniline was mainly controlled by suspended bacteria degrading both the dissolved and sorbed fractions. The degradation was slow. with a first-order degradation rate equal to 10(-6) h(-1). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Microbiology and Biotechnology
volume
57
issue
1-2
pages
234 - 241
publisher
Springer
external identifiers
  • scopus:0034784529
ISSN
1432-0614
DOI
10.1007/s002530100682
language
English
LU publication?
yes
id
96d1335b-7737-4c7f-900b-24c0b556f9b3 (old id 146236)
date added to LUP
2007-06-27 08:11:08
date last changed
2018-10-03 11:31:23
@article{96d1335b-7737-4c7f-900b-24c0b556f9b3,
  abstract     = {The influence of sorption on the mineralisation of 50 mug aniline l(-1) was examined in an aquifer material under batch conditions. The study was designed to distinguish the rates and extent of biodegradation of the sorbed and the dissolved trace organic and the contribution of sorbed and suspended bacteria to the degradation. Four different mathematical models were developed with different assumptions about the partitioning of aniline degradation and bacterial activity between the solid and the aqueous phases. The models were developed by combining an expression for logistic growth of the degrading population with Michaelis-Menten kinetics for the transformation of aniline. It was tested by a series of laboratory experiments conducted with C-14-labelled aniline, aseptically treated aquifer sand and filter-sterilised groundwater in different proportions and bacteria isolated from pristine groundwater. Model evaluation of the experimental data suggested that the fate of aniline was mainly controlled by suspended bacteria degrading both the dissolved and sorbed fractions. The degradation was slow. with a first-order degradation rate equal to 10(-6) h(-1).},
  author       = {Bengtsson, Göran and Carlsson, Christel},
  issn         = {1432-0614},
  language     = {eng},
  number       = {1-2},
  pages        = {234--241},
  publisher    = {Springer},
  series       = {Applied Microbiology and Biotechnology},
  title        = {Contribution of suspended and sorbed groundwater bacteria to degradation of dissolved and sorbed aniline},
  url          = {http://dx.doi.org/10.1007/s002530100682},
  volume       = {57},
  year         = {2001},
}