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Experience from 10 years of full-scale operation with enhanced biological phosphorus removal at Oresundsverket

Tykesson, Eva LU ; Jonsson, LE and la Cour Jansen, Jes LU (2005) In Water Science and Technology 52(12). p.151-159
Abstract
Ten years of full-scale experience with enhanced biological phosphorus removal (EBPR) has been evaluated. During the start-up period lack of carbon source was the main operational problem and a higher level of volatile fatty acids was secured by introducing a primary sludge hydrolysis. Acidic thermal sludge hydrolysis was used as the sludge treatment method at the plant during about three years. One effluent stream, rich in carbon and precipitant, was brought back to the process leading to an improvement of the phosphorus removal both by an improved biological process and chemical precipitation. A quite stable process of EBPR was developed with low levels of effluent phosphorus concentration. Stringent effluent discharge limits during... (More)
Ten years of full-scale experience with enhanced biological phosphorus removal (EBPR) has been evaluated. During the start-up period lack of carbon source was the main operational problem and a higher level of volatile fatty acids was secured by introducing a primary sludge hydrolysis. Acidic thermal sludge hydrolysis was used as the sludge treatment method at the plant during about three years. One effluent stream, rich in carbon and precipitant, was brought back to the process leading to an improvement of the phosphorus removal both by an improved biological process and chemical precipitation. A quite stable process of EBPR was developed with low levels of effluent phosphorus concentration. Stringent effluent discharge limits during short evaluation periods necessitated a continued work for improvement of the shortterm stability. During periods with lack of carbon, such as industrial holiday or rainy periods, both simultaneous precipitation and reduced aeration have been successfully tested as strategies for securing low levels of effluent phosphorus. (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
wastewater, enhanced biological phosphorus removal, phosphorus removal, treatment, hydrolysis
in
Water Science and Technology
volume
52
issue
12
pages
151 - 159
publisher
IWA Publishing
external identifiers
  • wos:000235273600018
  • pmid:16477982
  • scopus:31844450422
ISSN
0273-1223
language
English
LU publication?
yes
id
8e70635c-42d7-4111-8fd9-dc918250150f (old id 209445)
alternative location
http://www.iwaponline.com/wst/05212/0151/052120151.pdf
date added to LUP
2007-08-13 10:27:41
date last changed
2017-01-01 07:00:26
@article{8e70635c-42d7-4111-8fd9-dc918250150f,
  abstract     = {Ten years of full-scale experience with enhanced biological phosphorus removal (EBPR) has been evaluated. During the start-up period lack of carbon source was the main operational problem and a higher level of volatile fatty acids was secured by introducing a primary sludge hydrolysis. Acidic thermal sludge hydrolysis was used as the sludge treatment method at the plant during about three years. One effluent stream, rich in carbon and precipitant, was brought back to the process leading to an improvement of the phosphorus removal both by an improved biological process and chemical precipitation. A quite stable process of EBPR was developed with low levels of effluent phosphorus concentration. Stringent effluent discharge limits during short evaluation periods necessitated a continued work for improvement of the shortterm stability. During periods with lack of carbon, such as industrial holiday or rainy periods, both simultaneous precipitation and reduced aeration have been successfully tested as strategies for securing low levels of effluent phosphorus.},
  author       = {Tykesson, Eva and Jonsson, LE and la Cour Jansen, Jes},
  issn         = {0273-1223},
  keyword      = {wastewater,enhanced biological phosphorus removal,phosphorus removal,treatment,hydrolysis},
  language     = {eng},
  number       = {12},
  pages        = {151--159},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Experience from 10 years of full-scale operation with enhanced biological phosphorus removal at Oresundsverket},
  volume       = {52},
  year         = {2005},
}