Interreg slurry acidification technology project developed by Baltic region countries

Abstract

Acidification of animal slurry has proved to be an efficient solution to minimize NH3 emissions in-house, during storage, and after soil application, as well as to increase the fertilizer value of slurry, without negative impacts on other gaseous emissions. This solution has been used commonly in Denmark, and its efficiency withregard to the minimization of NH3 emissions has been documented in some studies. Acidification reduced NH3 emission from stored slurry to lessthan 10% of the emission from untreated slurry, and the NH3 emission from applied slurry on the field was reduced by 67%.