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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2019.07.025
|2 doi
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|a pubmed25n1001.xml
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|a (DE-627)NLM30056693X
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|a (NLM)31447027
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|a (PII)S0956-053X(19)30478-7
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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 Li, Juan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Evaluation of system stability and anaerobic conversion performance for corn stover using combined pretreatment
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|c 2019
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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 12.09.2019
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|a Date Revised 12.09.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019. Published by Elsevier Ltd.
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|a A novel pretreatment method combining freezing-thawing and ammonia was developed, and the system stability and anaerobic conversion performance of corn stover (CS) were investigated. The CS was pretreated by water freezing-thawing (water-FT) and ammonia freezing-thawing (ammonia-FT), and then pretreated and untreated CS were anaerobically digested in three continuously stirred tank biodigesters (CSTBRs) at three organic loading rate (OLR) of 1.6, 1.8 and 2.0 gVS L-1 d-1. The analyses showed that pH value and volatile fatty acids (VFAs) concentration of three systems were in reasonable ranges of 6.8-7.5 and 160-330 mg L-1, respectively. Total ammonia nitrogen (TAN) in R3 system ranged from 600 mg L-1 to 1300 mg L-1, which was conducive to maintain system stability. The removal amount of soluble chemical oxygen demand (SCOD) of CS by ammonia-FT pretreatment was 17.3-20.5% higher than that of water-FT pretreatment. The results also showed that CS pretreated by ammonia-FT achieved 27.8-32.4% and 13.9-16.1% more methane yield (250-267 mL gvs-1) than those of untreated and water-FT pretreatment, respectively. Correspondingly, ammonia-FT pretreated CS in R3 obtained the highest conversion rates of 47.7%, 56.9%, 42.7%, and 48.8% for TS, VS, cellulose, and hemicellulose, respectively, and the lowest cost was of 0.0336 USD m3 CH4-1 and the highest energy recovery of 2428.1 kWh kgvs-1. The study demonstrated that ammonia-FT pretreatment is one of efficient and cost effective method for stable CS bioconversion
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|a Journal Article
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|a Ammonia
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|a Corn stover
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|a Freezing-thawing
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|a Methane
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|a System stability
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|a Fatty Acids, Volatile
|2 NLM
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| 650 |
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|a Ammonia
|2 NLM
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| 650 |
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|a 7664-41-7
|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 Wachemo, Akiber Chufo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yuan, Hairong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zuo, Xiaoyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Xiujin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 97(2019) vom: 15. Sept., Seite 52-62
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
1 |
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|g volume:97
|g year:2019
|g day:15
|g month:09
|g pages:52-62
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|u http://dx.doi.org/10.1016/j.wasman.2019.07.025
|3 Volltext
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