Authors: Maja Dolriis, Michael Holm
Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI)
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Description: The steadily increase of greenhouse gas (GHG) emissions to the atmosphere has fostered an emerging interest and need to reduce the potential GHG sources. The enteric gas release from dairy cows is a very large source in the agricultural sector which mean that minimizing this specific methane source would play an important role to reduce the negative climate impact from livestock production. The aim of the present study was to build a fume hood in a cattle house and evaluate the potential of the technology to capture the me-thane emission in a minor air stream from the production site.
The study was conducted in a Danish dairy barn from 1999 containing approximately 140 dairy cows. The barn was naturally ventilated and the fume hood was established covering 8 cubicles (16 animal places). Three different designs were tested and the measurements were conducted from December through August 2019. The concentration of methane and carbon dioxide was monitored continuously and the average me-thane concentration in the air from the fume hood varied between 16 - 30 ppm, and 14 - 25 ppm elsewhere in the stable. The capture of methane in the fume hood in terms of emissions was between 13% - 25% of the total emission from the stable, determined in an air stream of 60 ? 80 m3/per cow per hour. In future trials the air from the fume hood is transferred to a biofilter to examine the potential for oxidize the methane emitted from dairy farms.
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI) 3 - Mitigation Strategies
Publication type: Presentation
Language 1: en
Rights: Canadian Society for Bioengineering