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Substituting energy crops with organic fraction of municipal solid waste for biogas production at farm level: A full-scale plant study

Paper ID Volume ID Publish Year Pages File Format Full-Text
35478 45092 2009 5 PDF Available
Title
Substituting energy crops with organic fraction of municipal solid waste for biogas production at farm level: A full-scale plant study
Abstract

The aim of this study was to evaluate the possibilities of replacing the energetic crop (EC) in the feed-in mixture (ingestate) with the organic fraction of municipal solid waste (OFMSW), in an anaerobic full-scale plant comprising four continuous stirred tank reactors (CSTRs) along with post-digester. A full-scale plant performing anaerobic digestion (AD) was monitored for 8 months, and during this period, 55 samples of both ingestates and digestates from the digesters (hydraulic retention time, HRT, of 40 d) and post-digester (HRT of 10 d) were collected before and after OFMSW introduction and analyzed for both biological and chemical parameters. The result obtained showed that substitution of EC (Mix A) with OFMSW (Mix B) did not lead to substantial modification of the feed-in mixture and AD process. Mixtures A and B gave similar specific biogas (i.e., 585 ± 198 m3 Mg TS-1 and 567 ± 162 m3 Mg TS-1 for Mix A and B, respectively), showing high process performances, i.e., 95% of the total anaerobic biogas producible was produced during the AD processes (HRT of 50 d). The digestates produced showed similar characteristics and can be potentially used in agriculture. The OFMSW offers new opportunities for farmers to produce renewable energy, by lowering the cost of the biomass and producing a useful fertilizer/amendment product.

Keywords
Energy crops; Organic fraction of municipal solid waste; Biogas production; Plant study; Anaerobic digestion; Digestate
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Substituting energy crops with organic fraction of municipal solid waste for biogas production at farm level: A full-scale plant study
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 8, August 2009, Pages 817–821
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