LAPSE:2020.0258
Published Article
LAPSE:2020.0258
Solid-State Anaerobic Digestion of Dairy Manure from a Sawdust-Bedded Pack Barn: Moisture Responses
February 24, 2020
Bedded pack manure has long been considered an unsuitable feedstock for conventional anaerobic digestion systems due to its high solids content. However, solid-state anaerobic digestion (SS-AD) provides an opportunity to generate methane from such high-solids feedstocks. This study was conducted to determine the influence of moisture content on the digestion of bedded pack dairy manure using SS-AD. Mixtures of sawdust bedding and dairy manure were prepared with moisture contents (MCs) of 70, 76, and 83% and digested at 37 °C for 85 days. The performance of digesters containing manure at 83% MC was 1.3 to 1.4-fold higher than that of digesters containing 70% MC manure in terms of volatile solids (VS) reduction and biogas production. VS reduction rates were 55 to 75% and cumulative methane yield ranged from 64 to 90 NmL (gVS)−1. These values are lower than those from SS-AD of fresh manure and this is likely due to the partial decomposition of biodegradable materials during the two to three-month period before the manure was removed from the barn. However, in terms of efficient management of farm odors and providing a renewable energy source for heating, SS-AD of bedded pack manure offers a potential alternative to the conventional composting systems currently in use.
Record ID
Keywords
biogas, dairy manure, methane, moisture content, solid-state anaerobic digestion
Subject
Suggested Citation
Kim E, Lee S, Jo H, Jeong J, Mulbry W, Rhaman S, Ahn H. Solid-State Anaerobic Digestion of Dairy Manure from a Sawdust-Bedded Pack Barn: Moisture Responses. (2020). LAPSE:2020.0258
Author Affiliations
Kim E: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea [ORCID]
Lee S: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea
Jo H: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea [ORCID]
Jeong J: Department of Environmental Engineering, Chungnam National University, Daejeon 34134, South Korea
Mulbry W: Sustainable Agricultural Systems Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD 20705, USA [ORCID]
Rhaman S: Department of Agricultural & Biosystems Engineering, North Dakota State University, Fargo, ND 58108 USA
Ahn H: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea
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Lee S: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea
Jo H: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea [ORCID]
Jeong J: Department of Environmental Engineering, Chungnam National University, Daejeon 34134, South Korea
Mulbry W: Sustainable Agricultural Systems Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD 20705, USA [ORCID]
Rhaman S: Department of Agricultural & Biosystems Engineering, North Dakota State University, Fargo, ND 58108 USA
Ahn H: Department of Animal Biosystems Science, Chungnam National University, Daejeon 34134 South Korea
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Journal Name
Energies
Volume
11
Issue
3
Article Number
E484
Year
2018
Publication Date
2018-02-25
Published Version
ISSN
1996-1073
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Original Submission
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PII: en11030484, Publication Type: Journal Article
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Published Article
LAPSE:2020.0258
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doi:10.3390/en11030484
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[v1] (Original Submission)
Feb 24, 2020
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Feb 24, 2020
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https://psecommunity.org/LAPSE:2020.0258
Original Submitter
Calvin Tsay
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