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231224s2013 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2013.486
|2 doi
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|a eng
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|a Kjerstadius, H
|e verfasserin
|4 aut
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|a Hygienization of sludge through anaerobic digestion at 35, 55 and 60 °C
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|c 2013
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|a Text
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|a Date Completed 05.03.2014
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|a Date Revised 10.12.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a 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 °C, as well as to investigate process stability and methane production at 60 °C. The results indicated that digestion at 55 or 60 °C with a minimum exposure time of 2 h resulted in good reduction of Salmonella, E. coli and Enterococcus and that anaerobic digestion could thus be used to reach the concentration limits suggested for the EU, as well as Sweden. Furthermore, stable continuous anaerobic digestion of sludge was achieved at 60 °C, albeit with 10% less methane production compared to digestion at 35 and 55 °C
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|a Evaluation Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sewage
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|a la Cour Jansen, J
|e verfasserin
|4 aut
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|a De Vrieze, J
|e verfasserin
|4 aut
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|a Haghighatafshar, S
|e verfasserin
|4 aut
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|a Davidsson, A
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 68(2013), 10 vom: 21., Seite 2234-9
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|g pages:2234-9
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|u http://dx.doi.org/10.2166/wst.2013.486
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