Project summary and overall conclusions
Slurry acidification technologies (SATs) are easily implemented on farms and have been shown to significantly reduce ammonia emissions from slurry
Ammonia emissions from livestock manure cause airborne eutrophication and other negative impacts on the environment. On top of that ammonia emissions represent an economic loss for farmers and lead to increased use of mineral nitrogen fertilizers. Slurry acidification technologies (SATs) developed in Denmark are easily implemented on farms and have been shown to significantly reduce ammonia emissions from slurry. The Baltic Slurry Acidification project has studied and analysed different aspects of slurry acidification that could hinder adoption of these techniques, including worker health and safety, potential corrosive effects on concrete and equipment, effects on soils as well as legislative barriers. In general, no major barriers were found that would directly hinder implantation of current slurry acidification technologies in Baltic Sea Region (BSR) countries. There was considerable interest among farmers in these technologies and their benefits, however, there was also concern about investment and running costs. In conclusion, SATs are effective green tech solutions that will reduce nitrogen loss from agriculture, do not negatively affect yields and can be easily implemented, however, incentives or compensation mechanisms are necessary to initiate investments and implementation of SATs. We recommend all BSR countries to establish national expert groups to further examine the potential for SATs to be implemented as an abatement measure to reduce national ammonia emissions.