In 2012, around 10% of the total slurry volume in Denmark was acidified to a pH around 6 by one of several technologies. Acidification by sulphuric acid reduce CH4 emissions from cattle slurry by 67-87% (Petersen et al., 2012), and from pig slurry by 94-99%, (Petersen; unpublished results) during 3-month storage periods
Source: AnimalChange (project supported by the EU-FP7)
DELIVERABLE 6.2. Deliverable title: Report on the extent to which manure management might help decrease GHG gas from animal agriculture.