Hygienization of sludge through anaerobic digestion at 35, 55 and 60 ºC
Kjerstadius, Hamse LU ; la Cour Jansen, Jes LU ; De Vrieze, Jo ; Haghighatafshar, Salar LU
and Davidsson, Åsa
LU
(2013)
In Water Science and Technology
68(10).
p.2234-2239
- Abstract
- Legislation in Sweden and the European Union concerning the use of sewage sludge in agriculture is under revision and future concentration limits for pathogens in treated sludge are likely to be expected. The aim of this study was to evaluate the hygienization of Salmonella, Escherichia coli, Enterococcus and Clostridium perfringens through continuous anaerobic digestion at 35, 55 or 60 ºC as well as to investigate process stability and methane production at 60 ºC. The results indicated that digestion at 55 or 60 ºC with a minimum exposure time of 2 h resulted in good reduction of Salmonella, E. coli and Enterococcus and that anaerobic digestion thus could be used to reach the concentration limits suggested for the EU, as well as in... (More)
- Legislation in Sweden and the European Union concerning the use of sewage sludge in agriculture is under revision and future concentration limits for pathogens in treated sludge are likely to be expected. The aim of this study was to evaluate the hygienization of Salmonella, Escherichia coli, Enterococcus and Clostridium perfringens through continuous anaerobic digestion at 35, 55 or 60 ºC as well as to investigate process stability and methane production at 60 ºC. The results indicated that digestion at 55 or 60 ºC with a minimum exposure time of 2 h resulted in good reduction of Salmonella, E. coli and Enterococcus and that anaerobic digestion thus could be used to reach the concentration limits suggested for the EU, as well as in Sweden. Furthermore, stable continuous
anaerobic digestion of sludge was achieved at 60 ºC, however with 10% less methane production compared to digestion at 35 and 55 ºC. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4221668
- author
- Kjerstadius, Hamse
LU
; la Cour Jansen, Jes
LU
; De Vrieze, Jo
; Haghighatafshar, Salar
LU
and Davidsson, Åsa
LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- anaerobic digestion, Methanosaeta, Methanosarcina, pathogen removal, sludge hygienization
- in
- Water Science and Technology
- volume
- 68
- issue
- 10
- pages
- 2234 - 2239
- publisher
- IWA Publishing
- external identifiers
-
- wos:000330122400018
- scopus:84892489194
- pmid:24292473
- ISSN
- 0273-1223
- DOI
- 10.2166/wst.2013.486
- language
- English
- LU publication?
- yes
- additional info
- PMID: 24292473
- id
- 79e32841-1a61-425a-ac99-e533bedde9ee (old id 4221668)
- date added to LUP
- 2016-04-01 15:03:47
- date last changed
- 2023-11-13 15:59:26
@article{79e32841-1a61-425a-ac99-e533bedde9ee,
abstract = {{Legislation in Sweden and the European Union concerning the use of sewage sludge in agriculture is under revision and future concentration limits for pathogens in treated sludge are likely to be expected. The aim of this study was to evaluate the hygienization of Salmonella, Escherichia coli, Enterococcus and Clostridium perfringens through continuous anaerobic digestion at 35, 55 or 60 ºC as well as to investigate process stability and methane production at 60 ºC. The results indicated that digestion at 55 or 60 ºC with a minimum exposure time of 2 h resulted in good reduction of Salmonella, E. coli and Enterococcus and that anaerobic digestion thus could be used to reach the concentration limits suggested for the EU, as well as in Sweden. Furthermore, stable continuous<br/><br>
anaerobic digestion of sludge was achieved at 60 ºC, however with 10% less methane production compared to digestion at 35 and 55 ºC.}},
author = {{Kjerstadius, Hamse and la Cour Jansen, Jes and De Vrieze, Jo and Haghighatafshar, Salar and Davidsson, Åsa}},
issn = {{0273-1223}},
keywords = {{anaerobic digestion; Methanosaeta; Methanosarcina; pathogen removal; sludge hygienization}},
language = {{eng}},
number = {{10}},
pages = {{2234--2239}},
publisher = {{IWA Publishing}},
series = {{Water Science and Technology}},
title = {{Hygienization of sludge through anaerobic digestion at 35, 55 and 60 ºC}},
url = {{http://dx.doi.org/10.2166/wst.2013.486}},
doi = {{10.2166/wst.2013.486}},
volume = {{68}},
year = {{2013}},
}