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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2020.03.016
|2 doi
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|a pubmed24n1030.xml
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|a (DE-627)NLM309182549
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|a (NLM)32334149
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|a (PII)S0956-053X(20)30125-2
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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 |
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|a Zhang, Wei
|e verfasserin
|4 aut
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|a Impact of low loading on digestion of the mechanically-separated organic fraction of municipal solid waste
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|c 2020
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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
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2020
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|a Date Revised 21.05.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Ltd. All rights reserved.
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|a Changing waste management practice, introduction of new technologies, and population demographics and behaviour will impact on both quantity and composition of future waste streams. Laboratory-scale anaerobic digestion of the mechanically-separated organic fraction of municipal solid waste (ms-OFMSW) was carried out at relatively low organic loading rates (OLR), and results analysed using an energy modelling tool. Thermophilic operation with water addition and liquor recycle was compared to co-digestion with dilution water replaced by sewage sludge digestate (SSD); thermophilic and mesophilic mono-digestion were also tested at low OLR. All thermophilic conditions showed stable operation, with specific methane production (SMP) from 0.203 to 0.296 m3 CH4 kg-1 volatile solids (VS). SSD addition increased biogas production by ~20% and there was evidence of further hydrolysis and degradation of the SSD. Long-term operation at 1 kg VS m-3 day-1 had no adverse effect except in mesophilic conditions where SMP was lower at 0.256 m3 CH4 kg-1 VS and stability was reduced, especially during OLR increases. This was probably due to low total ammonia nitrogen, which stabilised at ~0.2 g N kg-1 and limited the buffering capacity. Energy analysis showed thermophilic operation at OLR 2 g VS L-1 day-1 gave 42% of the theoretical methane potential and 38% of the higher heating value, reducing to 37% and 34% respectively in mesophilic conditions. Scenario modelling indicated that under low ms-OFMSW load even an energy-depleted co-substrate such as SSD could contribute to the energy balance, and would be a better diluent than water due to its nutrient and buffering capacity
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|a Journal Article
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|a Ammonia
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|a Energy modelling
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|a Mesophilic
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|a OFMSW
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|a Sewage sludge digestate
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|a Thermophilic
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|a Sewage
|2 NLM
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|a Solid Waste
|2 NLM
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| 650 |
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|a Methane
|2 NLM
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| 650 |
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|a OP0UW79H66
|2 NLM
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| 700 |
1 |
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|a Venetsaneas, Nikolaos
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Heaven, Sonia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Banks, Charles J
|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 107(2020) vom: 15. Apr., Seite 101-112
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:107
|g year:2020
|g day:15
|g month:04
|g pages:101-112
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|u http://dx.doi.org/10.1016/j.wasman.2020.03.016
|3 Volltext
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|h 101-112
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