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Improvement of separation and dewatering of activated sludge by using enhanced biological removal process over chemical phosphorus precipitation

Bouskova, Alzbeta LU and la Cour Jansen, Jes LU (2006) In Journal of Residuals Science and Technology 3(3). p.145-151
Abstract
Samples from several WWTPs in Sweden, operating either with chemical precipitation of phosphorus, biological phosphorus removal or combination of the two, were analysed for separation and dewatering properties. The main parameters of interest were capillary suction time (CST), extracellular polymeric substances (EPS), metal ions concentration, filterability and compressibility of the sludge. Enhanced biological phosphorus removal (EBPR)-sludge is composed of compact flocs, while the chemical sludge contains higher colloids concentration in the liquid phase and retain water within the floc structure by stronger physical forces. These two phenomena reflected in the poorer filterability as well as compressibility of the chemical sludge in... (More)
Samples from several WWTPs in Sweden, operating either with chemical precipitation of phosphorus, biological phosphorus removal or combination of the two, were analysed for separation and dewatering properties. The main parameters of interest were capillary suction time (CST), extracellular polymeric substances (EPS), metal ions concentration, filterability and compressibility of the sludge. Enhanced biological phosphorus removal (EBPR)-sludge is composed of compact flocs, while the chemical sludge contains higher colloids concentration in the liquid phase and retain water within the floc structure by stronger physical forces. These two phenomena reflected in the poorer filterability as well as compressibility of the chemical sludge in comparison to the sludge originating from biological phosphorus removal processes. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Residuals Science and Technology
volume
3
issue
3
pages
145 - 151
publisher
DEStech Publications
external identifiers
  • wos:000239612300003
  • scopus:57349096358
ISSN
1544-8053
language
English
LU publication?
yes
id
e1941bc7-4d00-4bab-9143-6b7636f9daba (old id 399135)
date added to LUP
2016-04-01 16:03:12
date last changed
2021-02-17 06:28:58
@article{e1941bc7-4d00-4bab-9143-6b7636f9daba,
  abstract     = {Samples from several WWTPs in Sweden, operating either with chemical precipitation of phosphorus, biological phosphorus removal or combination of the two, were analysed for separation and dewatering properties. The main parameters of interest were capillary suction time (CST), extracellular polymeric substances (EPS), metal ions concentration, filterability and compressibility of the sludge. Enhanced biological phosphorus removal (EBPR)-sludge is composed of compact flocs, while the chemical sludge contains higher colloids concentration in the liquid phase and retain water within the floc structure by stronger physical forces. These two phenomena reflected in the poorer filterability as well as compressibility of the chemical sludge in comparison to the sludge originating from biological phosphorus removal processes.},
  author       = {Bouskova, Alzbeta and la Cour Jansen, Jes},
  issn         = {1544-8053},
  language     = {eng},
  number       = {3},
  pages        = {145--151},
  publisher    = {DEStech Publications},
  series       = {Journal of Residuals Science and Technology},
  title        = {Improvement of separation and dewatering of activated sludge by using enhanced biological removal process over chemical phosphorus precipitation},
  volume       = {3},
  year         = {2006},
}