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241003s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.09.022
|2 doi
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|a pubmed25n1260.xml
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|a (PII)S0956-053X(24)00509-9
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|a eng
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| 100 |
1 |
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|a Wang, Xudong
|e verfasserin
|4 aut
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|a Effect of acidification pretreatment on two-phase anaerobic digestion of acidified food waste
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|c 2024
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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 23.11.2024
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|a Date Revised 23.11.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Ltd. All rights reserved.
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|a Acidified food waste significantly disrupts anaerobic digestion, highlighting the need for effective solutions to mitigate its impact. This study presents a method that utilizes acidified sludge to pretreat acidified food waste, thereby significantly improving the efficiency of hydrolysis and acidogenesis. After acidification pretreatment, hydrolysis efficiency improved from 64.54 % to 96.51 %, while acidogenesis efficiency increased from 34.82 % to 49.95 %. Additionally, the concentration of short-chain fatty acids and hydrogen production in the acidification pretreatment group increased by 45.89 % and 48.67 %, respectively. The pretreatment group exhibited a biochemical methane potential of 512.84 ± 13.73 mL/(g volatile suspended solids), which was 35.77 % higher than that of the control group. Mechanism analysis revealed that the higher abundance of genes associated with lactate dehydrogenase in the acidified sludge facilitated the rapid degradation of lactic acid. Moreover, the abundant Clostridium butyricum in the acidified sludge promoted the targeted conversion of lactic acid and other organic matter into butyric acid within the food waste system. This efficient butyric acid fermentation improved the fermentation environment and provided abundant substrates for methane production. This study introduces a promising bio-based strategy to improve the anaerobic digestion efficiency of acidified food waste
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|a Journal Article
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|a Acidification pretreatment
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|a Butyric acid
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|a Food waste
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|a Lactic acid
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|a Methane
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|a Sewage
|2 NLM
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|a Methane
|2 NLM
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|a OP0UW79H66
|2 NLM
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|a Fatty Acids, Volatile
|2 NLM
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|a Food Loss and Waste
|2 NLM
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| 700 |
1 |
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|a Ming, Xujia
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Mengyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Xiao
|e verfasserin
|4 aut
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| 700 |
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|a Li, Xianguo
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Dahai
|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 190(2024) vom: 15. Dez., Seite 208-216
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:190
|g year:2024
|g day:15
|g month:12
|g pages:208-216
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|u http://dx.doi.org/10.1016/j.wasman.2024.09.022
|3 Volltext
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