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Use of phosphorus release batch tests for modelling an EBPR pilot plant

Tykesson, Eva LU ; Aspegren, H; Henze, M; Nielsen, PH and Jansen, JL (2002) 5th Seminar on Activated Sludge Modelling In Water Science & Technology 45(6). p.99-106
Abstract
The aim of this study was to evaluate how routinely performed phosphorus release tests could be used when modelling enhanced biological phosphorus removal (EBPR) using activated sludge models such as ASM2d. A pilot plant with an extensive analysis programme was used as basis for the simulations. Without any calibration the prediction of phosphorus removal was poor and the initial release rates from the simulations were not similar to those found from the laboratory tests. A period with low organic loading was chosen as a calibration period. In this period averages of daily influent measurements were used as influent parameters. First, calibration was performed in order to fit effluent COD and MLVSS in the sludge. Next, the phosphorus... (More)
The aim of this study was to evaluate how routinely performed phosphorus release tests could be used when modelling enhanced biological phosphorus removal (EBPR) using activated sludge models such as ASM2d. A pilot plant with an extensive analysis programme was used as basis for the simulations. Without any calibration the prediction of phosphorus removal was poor and the initial release rates from the simulations were not similar to those found from the laboratory tests. A period with low organic loading was chosen as a calibration period. In this period averages of daily influent measurements were used as influent parameters. First, calibration was performed in order to fit effluent COD and MLVSS in the sludge. Next, the phosphorus content in the sludge was decreased to the measured level by decreasing the fermentation rate. Finally, the initial phosphorus release rate was calculated from a simulated batch test and the PHA uptake rate was increased to fit this release rate with the average initial rates from laboratory batch tests performed during the period. The calibrated model was verified with data from the subsequent period where acetate was dosed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
activated sludge, phosphorus release test, ASM2d, modelling, EBPR
in
Water Science & Technology
volume
45
issue
6
pages
99 - 106
publisher
I W A Publishing
conference name
5th Seminar on Activated Sludge Modelling
external identifiers
  • wos:000175103800010
  • pmid:11989882
  • scopus:0036212977
ISSN
0273-1223
language
English
LU publication?
yes
id
6bb58a4c-707c-4fd0-8f2c-ff5630abe7db (old id 339727)
alternative location
http://www.iwaponline.com/wst/04506/0099/045060099.pdf
date added to LUP
2007-11-16 16:59:16
date last changed
2017-01-01 06:44:58
@inproceedings{6bb58a4c-707c-4fd0-8f2c-ff5630abe7db,
  abstract     = {The aim of this study was to evaluate how routinely performed phosphorus release tests could be used when modelling enhanced biological phosphorus removal (EBPR) using activated sludge models such as ASM2d. A pilot plant with an extensive analysis programme was used as basis for the simulations. Without any calibration the prediction of phosphorus removal was poor and the initial release rates from the simulations were not similar to those found from the laboratory tests. A period with low organic loading was chosen as a calibration period. In this period averages of daily influent measurements were used as influent parameters. First, calibration was performed in order to fit effluent COD and MLVSS in the sludge. Next, the phosphorus content in the sludge was decreased to the measured level by decreasing the fermentation rate. Finally, the initial phosphorus release rate was calculated from a simulated batch test and the PHA uptake rate was increased to fit this release rate with the average initial rates from laboratory batch tests performed during the period. The calibrated model was verified with data from the subsequent period where acetate was dosed.},
  author       = {Tykesson, Eva and Aspegren, H and Henze, M and Nielsen, PH and Jansen, JL},
  booktitle    = {Water Science & Technology},
  issn         = {0273-1223},
  keyword      = {activated sludge,phosphorus release test,ASM2d,modelling,EBPR},
  language     = {eng},
  number       = {6},
  pages        = {99--106},
  publisher    = {I W A Publishing},
  title        = {Use of phosphorus release batch tests for modelling an EBPR pilot plant},
  volume       = {45},
  year         = {2002},
}