Document Detail


Dry anaerobic digestion of food waste under mesophilic conditions: Performance and methanogenic community analysis.
MedLine Citation:
PMID:  23347929     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The performance of dry anaerobic digestion (AD) of food waste was investigated under mesophilic conditions and the methanogenic community was investigated using 454 pyrosequencing. Stable dry AD was achieved by hydraulic retention time (HRT) control without the addition of alkali agents. The average CH(4) production rate, CH(4) content, and volatile solid reduction rate were 2.51±0.17m(3)/m(3)/d, 66±2.1%, and 65.8±1.22%, respectively, at an HRT of 40d. The methanogenic community of the seed sludge experienced a significant reduction in genus diversity from 18 to 4 and a dominant methanogenic shift from hydrogenotrophic to acetoclastic groups after the acclimation under dry condition. Almost all sequences of the dry anaerobic digester were closely related with those of Methanosarcina thermophila with similarity of 96.4-99.1%. The experimental results would serve as useful information to understand the dry AD system.
Authors:
Si-Kyung Cho; Wan-Taek Im; Dong-Hoon Kim; Moon-Hwan Kim; Hang-Sik Shin; Sae-Eun Oh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-29
Journal Detail:
Title:  Bioresource technology     Volume:  131C     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-1-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  210-217     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Civil and Environmental Engineering, KAIST, 373-1, Guseong-Dong, Yuseong-gu, Daejeon, Republic of Korea.
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