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Dynamic modelling of phosphorus in a nutrient-deficient COD removal system

Lindblom, E; Rosén, Christian LU and Jeppsson, Ulf LU (2004) 2nd Young Researchers Conference In Young Researchers 2004 (Water and Environmental Management Series (WEMS)) p.89-99
Abstract
n this paper a new model, tailor-made for nutrient deficient aerobic COD removal, is presented. The Activated Sludge Model No. 1 is chosen as a basis for model development. The original model is extended to include (1) phosphorus state variables; (2) phosphorus and nitrogen limited heterotrophic growth; (3) additional 'luxury' uptake of phosphorus and (4) a separate active biomass component to model predation by higher-order organisms, e.g. protozoa. The phosphorus states are included to model phosphorus consumption in biological growth. Nutrient limitations are modelled using Monod functions. The conventional heterotrophic biomass is assumed to be the only source of carbon and nutrients for the higher-order organisms. The model is reduced... (More)
n this paper a new model, tailor-made for nutrient deficient aerobic COD removal, is presented. The Activated Sludge Model No. 1 is chosen as a basis for model development. The original model is extended to include (1) phosphorus state variables; (2) phosphorus and nitrogen limited heterotrophic growth; (3) additional 'luxury' uptake of phosphorus and (4) a separate active biomass component to model predation by higher-order organisms, e.g. protozoa. The phosphorus states are included to model phosphorus consumption in biological growth. Nutrient limitations are modelled using Monod functions. The conventional heterotrophic biomass is assumed to be the only source of carbon and nutrients for the higher-order organisms. The model is reduced in the sense that it only regards aerobic conditions and it omits autotrophic organisms. A measurement campaign carried out at the wastewater treatment plant at Hylte pulp and paper mill in Sweden, together with dynamic phosphorus dosage data, is used for model validation and influent fractionation. Dynamic simulations show that the proposed model represents a possible avenue for upgrading activated sludge models to take into account nutrient deficiency and delayed responses due to variable COD:P ratios within active biomass. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Young Researchers 2004 (Water and Environmental Management Series (WEMS))
editor
Lens, P and Stuetz, R
pages
89 - 99
publisher
IWA Publishing
conference name
2nd Young Researchers Conference
ISBN
1843395053
language
English
LU publication?
yes
id
d54175d9-deac-42ed-94d5-0d26cc88cf51 (old id 588307)
date added to LUP
2007-10-30 15:01:49
date last changed
2016-04-16 09:15:05
@misc{d54175d9-deac-42ed-94d5-0d26cc88cf51,
  abstract     = {n this paper a new model, tailor-made for nutrient deficient aerobic COD removal, is presented. The Activated Sludge Model No. 1 is chosen as a basis for model development. The original model is extended to include (1) phosphorus state variables; (2) phosphorus and nitrogen limited heterotrophic growth; (3) additional 'luxury' uptake of phosphorus and (4) a separate active biomass component to model predation by higher-order organisms, e.g. protozoa. The phosphorus states are included to model phosphorus consumption in biological growth. Nutrient limitations are modelled using Monod functions. The conventional heterotrophic biomass is assumed to be the only source of carbon and nutrients for the higher-order organisms. The model is reduced in the sense that it only regards aerobic conditions and it omits autotrophic organisms. A measurement campaign carried out at the wastewater treatment plant at Hylte pulp and paper mill in Sweden, together with dynamic phosphorus dosage data, is used for model validation and influent fractionation. Dynamic simulations show that the proposed model represents a possible avenue for upgrading activated sludge models to take into account nutrient deficiency and delayed responses due to variable COD:P ratios within active biomass.},
  author       = {Lindblom, E and Rosén, Christian and Jeppsson, Ulf},
  editor       = {Lens, P and Stuetz, R},
  isbn         = {1843395053},
  language     = {eng},
  pages        = {89--99},
  publisher    = {ARRAY(0x141ecf10)},
  series       = {Young Researchers 2004 (Water and Environmental Management Series (WEMS))},
  title        = {Dynamic modelling of phosphorus in a nutrient-deficient COD removal system},
  year         = {2004},
}