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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2022.07.013
|2 doi
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|a pubmed25n1147.xml
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|e rakwb
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|a eng
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|a Feiz, Roozbeh
|e verfasserin
|4 aut
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|a Systems analysis of digestate primary processing techniques
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|c 2022
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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 15.08.2022
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|a Date Revised 15.08.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.
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|a In this paper, we performed technology assessment and systems analysis of primary digestate processing techniques to provide a comprehensive analysis of their environmental and cost performance. We compiled more than 100 observations from large-scale biogas plants and considered digestate based on manure, crops and agro-wastes, and food waste under the geographical contexts of Sweden and Belgium. Centrifuge, screw press, and rotary drum were identified as suitable primary processing techniques. We analyzed the climate impact, energy use, and operational cost of digestate management under these scenarios: no processing, partial processing (solid-liquid separation) and full processing (solid-liquid separation followed by ammonia stripping). As expected, the suitable digestate processing varied with the context, transport was often the most critical cost factor, and emissions from storage reduced the climate savings from the use of biofertilizers. However, treating liquid fraction became a main contributor to cost and climate impact under the Belgian conditions. Consequently, the possibility for local application of liquid fraction as biofertilizer could prevent costs and impacts associated with its further treatment. The main novelty of this work is in its integrative and comprehensive approach toward the choices and impacts of primary processing of digestate. We tried to bridge many individual case studies, drew from experiences of biogas plants in different geographical contexts, assessed suitable processing techniques for different digestate types, and analyzed the environmental impacts and cost of digestate management from a life cycle perspective. We believe that such integrated approaches would help decision-making for increased sustainability of the biogas sector
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|a Journal Article
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|a Anaerobic digestion
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|a Digestate management
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|a Life-cycle assessment
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|a Solid–liquid separation
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|a Technology assessment
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|a Biofuels
|2 NLM
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|a Manure
|2 NLM
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| 700 |
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|a Carraro, Giacomo
|e verfasserin
|4 aut
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|a Brienza, Claudio
|e verfasserin
|4 aut
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| 700 |
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|a Meers, Erik
|e verfasserin
|4 aut
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| 700 |
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|a Verbeke, Marieke
|e verfasserin
|4 aut
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| 700 |
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|a Tonderski, Karin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 150(2022) vom: 01. Aug., Seite 352-363
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:150
|g year:2022
|g day:01
|g month:08
|g pages:352-363
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|u http://dx.doi.org/10.1016/j.wasman.2022.07.013
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