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Maximum organic loading rate for the single-stage wet anaerobic digestion of food waste.
MedLine Citation:
PMID:  22705526     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Anaerobic digestion of food waste was conducted at high OLR from 3.7 to 12.9kg-VSm(-3)day(-1) for 225days. Periods without organic loading were arranged between the each loading period. Stable operation at an OLR of 9.2kg-VS (15.0kg-COD) m(-3)day(-1) was achieved with a high VS reduction (91.8%) and high methane yield (455mLg-VS-1). The cell density increased in the periods without organic loading, and reached to 10.9×10(10)cellsmL(-1) on day 187, which was around 15 times higher than that of the seed sludge. There was a significant correlation between OLR and saturated TSS in the sludge (y=17.3e(0.1679×), r(2)=0.996, P<0.05). A theoretical maximum OLR of 10.5kg-VS (17.0kg-COD) m(-3)day(-1) was obtained for mesophilic single-stage wet anaerobic digestion that is able to maintain a stable operation with high methane yield and VS reduction.
Authors:
Norio Nagao; Nobuyuki Tajima; Minako Kawai; Chiaki Niwa; Norio Kurosawa; Tatsushi Matsuyama; Fatimah Md Yusoff; Tatsuki Toda
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-18
Journal Detail:
Title:  Bioresource technology     Volume:  118C     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-6-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  210-218     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Environmental Engineering for Symbiosis, Faculty of Engineering, Soka University, 1-236 Tangi-cho, Hachioji, Tokyo 192-8577, Japan; Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
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