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Continuous biomethanization of agrifood industry waste: A case study in Spain

Paper ID Volume ID Publish Year Pages File Format Full-Text
34743 45042 2013 6 PDF Available
Title
Continuous biomethanization of agrifood industry waste: A case study in Spain
Abstract

•We present the results obtained by anaerobic digestion of some organic waste.•The environmental benefits of anaerobic digestion are analyzed.•Energetic potential of agrifood industries waste in Extremadura Spain is quantified.•The results obtained prove that anaerobic digestion is economically profitable.

The anaerobic digestion technology is a biological treatment widely used to reduce the pollution load of wet waste biomass. In this work we present the results obtained by performing extensive experiments of anaerobic digestion of slaughterhouse waste, tomato industry waste and olive oil industry waste in continuous mode, which were designed to demonstrate that anaerobic digestion is an effective technology from an environmental and economic point of view.Biogas yields obtained are between 35.22 and 5.45 Nm3 biogas/m3 olive oil industry waste and tomato industry waste respectively and the slaughterhouse wastes achieve intermediate production, 30.86 Nm3 biogas/m3 municipal slaughterhouse waste and 22.53 Nm3 biogas/m3 Iberian pig slaughterhouse waste. Moreover, it possible to degrade between 63.46 and 75.3% of the initial organic matter.If these results are analyzed, the environmental, energetic economic benefits of anaerobic digestion can be quantified. Biomethanation of all these wastes generated annually in Extremadura could prevent the emission of 134,772 t of equivalent carbon dioxide, generate an energy similar to that provided by 2826 toe and reach payback times from 3.29 to 3.75 years for anaerobic digestion plant designed to treat the wastes generated by a medium-sized industry. So, we have fulfilled all the planned aims.

Keywords
Biomethanization; Agrifood industry waste; Environmental benefits; Energetic benefits; Economic feasibility
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Continuous biomethanization of agrifood industry waste: A case study in Spain
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 48, Issues 5–6, May–June 2013, Pages 920–925
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