Advanced

Biological treatment of whitewater in a laboratory process in order to determine kinetic parameters for model development

Alexandersson, Tomas LU ; Jeppsson, Ulf LU and Rosén, Christian LU (2004) In Water Science and Technology 50(3). p.195-206
Abstract
Implementation of an in-mill biological treatment plant is one solution to the problems associated with closure of whitewater systems. It is, however, important to operate the treatment with low concentration of nutrients in the effluent. The effect on the COD reduction from decreased additions of NH4-N and PO4-P were investigated in three parallel aerobic suspended carrier reactors during treatment at 46 to 48degreesC of whitewater from a recycled paper mill producing liner and fluting. In the reference reactor, a COD reduction of 89% was achieved and 45.6 mg NH4-N/(g COD reduced) and 11.6 mg PO4-P/(g COD reduced) was consumed at an organic load around 20 kg COD/(m(3.)d). Reduced additions of NH4-N decreased the COD reduction. Addition of... (More)
Implementation of an in-mill biological treatment plant is one solution to the problems associated with closure of whitewater systems. It is, however, important to operate the treatment with low concentration of nutrients in the effluent. The effect on the COD reduction from decreased additions of NH4-N and PO4-P were investigated in three parallel aerobic suspended carrier reactors during treatment at 46 to 48degreesC of whitewater from a recycled paper mill producing liner and fluting. In the reference reactor, a COD reduction of 89% was achieved and 45.6 mg NH4-N/(g COD reduced) and 11.6 mg PO4-P/(g COD reduced) was consumed at an organic load around 20 kg COD/(m(3.)d). Reduced additions of NH4-N decreased the COD reduction. Addition of 56% of the consumption of NH4-N in the reference reactor resulted in a COD reduction of 80%. The response from decreased addition of PO4-P was different compared to NH4-N but it could not be determined if this is due to unsuitable experimental design or a different reaction mechanism. Reducing the addition of PO4-P to 26% of the consumption of PO4-P in the reference reactor, decreased the COD reduction to 83%. The main conclusion from the experiment is: biological treatment has the potential of treating whitewater from recycled paper mills with low effluent nutrient concentrations. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
pulp and paper, nutrients, model, aerobic degradation, closure, whitewater
in
Water Science and Technology
volume
50
issue
3
pages
195 - 206
publisher
IWA Publishing
external identifiers
  • wos:000224044000023
  • pmid:15461414
  • scopus:4544242836
ISSN
0273-1223
language
English
LU publication?
yes
id
8568dcdb-5eb6-423b-8b56-707b1f7b0245 (old id 265530)
date added to LUP
2007-09-03 15:07:50
date last changed
2017-01-01 07:07:58
@article{8568dcdb-5eb6-423b-8b56-707b1f7b0245,
  abstract     = {Implementation of an in-mill biological treatment plant is one solution to the problems associated with closure of whitewater systems. It is, however, important to operate the treatment with low concentration of nutrients in the effluent. The effect on the COD reduction from decreased additions of NH4-N and PO4-P were investigated in three parallel aerobic suspended carrier reactors during treatment at 46 to 48degreesC of whitewater from a recycled paper mill producing liner and fluting. In the reference reactor, a COD reduction of 89% was achieved and 45.6 mg NH4-N/(g COD reduced) and 11.6 mg PO4-P/(g COD reduced) was consumed at an organic load around 20 kg COD/(m(3.)d). Reduced additions of NH4-N decreased the COD reduction. Addition of 56% of the consumption of NH4-N in the reference reactor resulted in a COD reduction of 80%. The response from decreased addition of PO4-P was different compared to NH4-N but it could not be determined if this is due to unsuitable experimental design or a different reaction mechanism. Reducing the addition of PO4-P to 26% of the consumption of PO4-P in the reference reactor, decreased the COD reduction to 83%. The main conclusion from the experiment is: biological treatment has the potential of treating whitewater from recycled paper mills with low effluent nutrient concentrations.},
  author       = {Alexandersson, Tomas and Jeppsson, Ulf and Rosén, Christian},
  issn         = {0273-1223},
  keyword      = {pulp and paper,nutrients,model,aerobic degradation,closure,whitewater},
  language     = {eng},
  number       = {3},
  pages        = {195--206},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Biological treatment of whitewater in a laboratory process in order to determine kinetic parameters for model development},
  volume       = {50},
  year         = {2004},
}