Document Detail

Effect of leachate recirculation on mesophilic anaerobic digestion of food waste.
MedLine Citation:
PMID:  22088957     Owner:  NLM     Status:  Publisher    
The effects of using untreated leachate for supplemental water addition and liquid recirculation on anaerobic digestion of food waste was evaluated by combining cyclic water recycle operations with batch mesophilic biochemical methane potential (BMP) assays. Cyclic BMP assays indicated that using an appropriate fraction of recycled leachate and fresh make up water can stimulate methanogenic activity and enhance biogas production. Conversely increasing the percentage of recycled leachate in the make up water eventually causes methanogenic inhibition and decrease in the rate of food waste stabilization. The decrease in activity is exacerbated as the number cycles increases. Inhibition is possibly attributed to accumulation and elevated concentrations of ammonia as well as other waste by products in the recycled leachate that inhibit methanogenesis.
Haleh Shahriari; Mostafa Warith; Mohamed Hamoda; Kevin J Kennedy
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-14
Journal Detail:
Title:  Waste management (New York, N.Y.)     Volume:  -     ISSN:  1879-2456     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9884362     Medline TA:  Waste Manag     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Department of Civil Engineering, University of Ottawa, 161 Louis Pasteur St., P.O. Box 450, Stn. A, Ottawa, ON, Canada K1N 6N5.
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