Document Detail


Optimization of biological hydrogen production for anaerobic co-digestion of food waste and wastewater biosolids.
MedLine Citation:
PMID:  23334031     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Batch anaerobic co-digestion studies were conducted using 21 mixtures (M1-M21) of food waste (FW), primary sludge (PS), and waste activated sludge (WAS) at 37°C and an initial pH of 5.5±0.2. The results showed that co-digestion of FW and sludges had a positive impact on the hydrogen production. The maximum hydrogen yields by co-digestion of FW+PS, FW+WAS, and FW+PS+WAS were achieved at volumetric ratios of 75:25, 75:25, and 80:15:5, respectively, with corresponding optimal COD/N mass ratios of 26, 31 and 30, respectively. Furthermore, the synergistic effect of co-digestion was proven and quantified: the measured hydrogen productions were higher than the sums of the hydrogen productions calculated from each fraction, and the highest percentage increase above the calculated value of 101%, was achieved in the FW+PS+WAS mixture (80:15:5).
Authors:
Peiqing Zhou; Elsayed Elbeshbishy; George Nakhla
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-20
Journal Detail:
Title:  Bioresource technology     Volume:  130C     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-1-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  710-718     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Civil and Environmental Engineering Department, University of Western Ontario, London, ON, Canada N6A 5B9.
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