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Evaluation of methane generation and process stability from anaerobic co-digestion of sugar beet by-product and cow manure

Paper ID Volume ID Publish Year Pages File Format Full-Text
20119 43158 2016 7 PDF Available
Title
Evaluation of methane generation and process stability from anaerobic co-digestion of sugar beet by-product and cow manure
Abstract

The effect of mesophilic anaerobic co-digestion of dried pellets of exhausted sugar beet cossettes (ESBC-DP) and cow manure (CM) on the enhancement of methane generation and process stability were studied with the aim to select the best substrate mixture ratio. A series of batch experiments was conducted using the following five mixture ratios of ESBC-DP:CM: 0:100; 25:75; 50:50; 75:25 and 100:0. Best results were obtained from mixture ratios with ESBC-DP proportions in the range of 25–50%. Mixture ratio of 50:50 showed a specific methane production (SMP) increase of 81.4% and 25.5%, respectively, in comparison with mono-digestion of ESBC-DP and CM. Evolution of the indirect parameter named acidogenic substrate as carbon (ASC) could be used to provide more insight about the process stability of anaerobic digestion. ASC accumulation was observed in reactors with higher ESBC-DP proportions leading to a delay in VFAs consumption and conversion into methane.

Keywords
Anaerobic co-digestion; Methane generation; Sugar beet by-product; Cow manure; Process stability; Acidogenic substrate as carbon
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Evaluation of methane generation and process stability from anaerobic co-digestion of sugar beet by-product and cow manure
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 121, Issue 5, May 2016, Pages 566–572
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us