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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2022.2118083
|2 doi
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|a pubmed25n1150.xml
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|a eng
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1 |
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|a Cao, Xiuqin
|e verfasserin
|4 aut
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|a Anaerobic co-digestion of sewage sludge pretreated by thermal hydrolysis and food waste
|b gas production, dewatering performance, and community structure
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|c 2024
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 15.01.2024
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|a Date Revised 15.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Anaerobic co-digestion can effectively break the limitations of mono-digestion. However, there are still some problems such as long residence time, unsatisfactory methane yield, and unstable performance for co-digestion of sewage sludge (SS) and food waste (FW). Therefore, the SS in the reactor treating co-digestion of SS and FW is considered to be pretreated by thermal hydrolysis. In this work, the anaerobic co-digestion of SS of thermal hydrolysis pretreatment (THP) and FW significantly improved the stability, methane production of the digestive reactor, and dewaterability of the digested sludge. The R6 obtained the most cumulative methane production (315.76 mL/g VS). In addition, compared to R3, the cumulative methane production and maximum methane production rate of R5 increased by 9.93% and 14.56%, respectively. The dewaterability of R4, R5, and R6 was improved, while the dewatering performance of the R3 decreased to a greater extent. The results of the kinetic model fitting were consistent with the experimental results. Among them, the hydrolysis constants (Kh) of anaerobic co-digestion of THP-SS and FW were 0.121, 0.130, and 0.114 d-1, respectively, which were higher than those of other groups. And the estimated lag time (λ) of co-digestion was also lower than that of mono-digestion groups. Microbial community analysis indicated that the bacterial diversity and richness of anaerobic co-digested groups of THP-SS and FW were enhanced, while the methanogens with acetoclastic pathway became the main methanogenic microorganisms. This work provides essential information on anaerobic co-digestion containing different THP-SS contents
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|a Journal Article
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|a Thermal hydrolysis pretreatment
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|a anaerobic co-digestion
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|a community structure
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|a food waste
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|a sewage sludge
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|a Sewage
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|a Food Loss and Waste
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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 Yuan, Haoyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tian, Yuqing
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 45(2024), 4 vom: 23. Jan., Seite 612-623
|w (DE-627)NLM098202545
|x 1479-487X
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|g year:2024
|g number:4
|g day:23
|g month:01
|g pages:612-623
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