Optimizing feedstock mixtures of livestock farming wastes to enhance methane yield in biogas production by co-digestion

Different mixtures of feedlot manure, rumen content, and corn stover were used to produce biogas with a large percentage of methane by co-digestion. Biogas components from each mixture were identified and quantified using gas chromatography. Cumulative biogas and methane production was measured for...

Full description

Saved in:
Bibliographic Details
Published in:Journal of renewable and sustainable energy 2018-09, Vol.10 (5)
Main Authors: Uranga-Soto, Manuel Alejandro, Valdez-Torres, José Benigno, Báez-Sañudo, Manuel Alonzo, Heredia, José Basilio, Siller-Cepeda, Jorge Humberto, Muy-Rangel, María Dolores
Format: Article
Language:English
Subjects:
Alternative energy sources
Biogas
Corn
Digestion
Farming
Gas chromatography
Livestock
Manures
Methane
Optimization
Response surface methodology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Different mixtures of feedlot manure, rumen content, and corn stover were used to produce biogas with a large percentage of methane by co-digestion. Biogas components from each mixture were identified and quantified using gas chromatography. Cumulative biogas and methane production was measured for 10 mixtures over the course of 15 days. Response surface methodology was implemented to find the optimum mixture. The largest biogas and methane yields occurred in a mixture composed of 75% feedlot manure, 12.5% ruminal content, and 12.5% corn stover, corresponding to a methane yield of 126 ml CH4·g−1 VS with a 7.5% VS content. These findings show that co-digestion of livestock farming wastes is a promising alternative for the production of renewable energy.
ISSN:1941-7012
1941-7012
DOI:10.1063/1.5024524