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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/wer.10918
|2 doi
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|a pubmed24n1201.xml
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|a (DE-627)NLM360551092
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|a (NLM)37555484
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Steiniger, Bettina
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Digesters as heat storage
|b Effects of the digester temperature on the process stability, sludge liquor quality, and the dewaterability
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 13.09.2023
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|a Date Revised 26.09.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2023 The Authors. Water Environment Research published by Wiley Periodicals LLC on behalf of Water Environment Federation.
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|a Variation of the digester temperature during the year enables the operation of digesters as seasonal heat storage contributing to a holistic heat management at water resource recovery facilities. Full- and lab-scale process data were conducted to examine the effect of the digester temperature on process stability, sludge liquor quality, and dewaterability. Both full- and lab-scale digesters show a stable anaerobic degradation process with a hydraulic retention time of more than 20 days and organic load rates up to 2.2-kg COD/(m3 ·day) at temperatures between 33 and 53°C. The concentrations of soluble COD and ammonium-nitrogen in the sludge liquor digested at 53°C are 2.6 to 5.8 times and 1.3 times higher, respectively, than in the sludge liquor digested at 37°C. Dewatering tests show an enhancement of the dewaterability but a clear increase in the polymer demand at increased digester temperature. PRACTITIONER POINTS: Digesters can operate as seasonal heat storage within mesophilic and thermophilic temperatures Stable anaerobic degradation process for HRT above 20 days Maintenance of process stability as well as quantity and quality of biogas Increase of soluble COD in sludge liquor at higher temperatures Better dewaterability but higher demand for polymers with increasing temperature
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|a Journal Article
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|a anaerobic digestion
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|a biogas
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|a mesophilic
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|a process stability
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| 650 |
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|a sludge dewatering
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| 650 |
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|a sludge liquor
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|a thermophilic
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| 650 |
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|a Sewage
|2 NLM
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| 700 |
1 |
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|a Hubert, Christian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schaum, Christian
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 95(2023), 9 vom: 29. Sept., Seite e10918
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:95
|g year:2023
|g number:9
|g day:29
|g month:09
|g pages:e10918
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|u http://dx.doi.org/10.1002/wer.10918
|3 Volltext
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