Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
2011
Journal or Book Title
Applied Engineering in Agriculture
Volume
27
Issue
5
First Page
821
Last Page
825
DOI
10.13031/2013.39570
Abstract
Design and construction of full-scale anaerobic digesters that co-digest manure with other substrates, such as food processing wastes, is challenging because of the large number of potential mixtures that can be fed to the digester. In this work we examine the relationship between results from bench-scale methods such as biochemical methane potential assays (BMPs) and sub pilot-scale reactors. The baseline feedstock for this study was beef manure from concrete feedlot pens (open and covered) in eastern Iowa. Additional co-digestion substrates tested were short-fiber cardboard, corn processing wastewater, enzyme processing wastewater and lagoon liquid. Substrates were characterized for total solids (TS), volatile solids (VS), chemical oxygen demand (COD), pH, alkalinity, and ammonia, after which BMPs were conducted on all substrates. Based on the BMP and anaerobic toxicity assay (ATA) results, a mixture was created and evaluated using BMPs and tested in 100-L sub pilot-scale reactors. This study showed that results from BMPs of feedstock co-digestion mixtures accurately estimated the range of methane produced from three 100-L, plug flow reactors.
Access
Open
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2011
Language
en
File Format
application/pdf
Recommended Citation
Sell, Steven Thomas; Burns, Robert T.; Moody, Lara B.; and Raman, D. Raj, "Comparison of Methane Production from Bench- and Sub Pilot-Scale Anaerobic Digesters" (2011). Agricultural and Biosystems Engineering Publications. 59.
https://lib.dr.iastate.edu/abe_eng_pubs/59
Comments
This article is from Applied Engineering in Agriculture, 27, no. 5 (2011): 821–825.