Reducing the loss of nitrogen from agriculture is key to reducing eutrophication of the Baltic Sea. Most of the airborne eutrophication to the Baltic Sea comes from ammonia emissions, and almost all of the ammonia emissions are from livestock manure.
Acidification has been long known to effectively reduce or even stop ammonia evaporation from animal manure slurry. Slurry acidification technologies (SATs) have been developed in Denmark over a decade ago. These technologies have been tested under Danish conditions and are approved by the Danish Environmental Protection Agency as BAT technologies that Danish farms can utilize to reduce ammonia emissions with up to 70 %.
There is a relevant need to spread awareness, build knowledge and exchange experiences in the Baltic Sea Region concerning practical implementation and benefits of SATs. Many end-users in the region are not aware of SATs, while those that have heard of SATs would like to know whether differences in local agronomic conditions will result in the same positive results as in Denmark. Therefore the feasibility of implementing SATs must be analysed impartially and objectively on a regional level. Pilot installations connected to field trials and local demonstrations will increase awareness and knowledge and help to successfully promote the usage of SATs throughout the Baltic Sea Region.
The project has following objectives:
- To set up pilot installations (WP 3) and use them for demonstration of SATs
- To carry out field research (WP 4) to register any influence of the acidification on crop yields and on different soil types. The field research programme will be carried out for at least two years.
- To clarify technological aspects of SATs feasibility (WP 2, WP 5) for being an instrument for the achievement of cleaner waters in the Baltic Sea Region.
- To communicate (WP1, all partners) and make available the resulting information to end-users, farmers, agricultural advisers, machine stations and others that are interested in SATs.
- To do analyses of environmental legislation (WP 6, WP 5) in each of the covered countries, support schemes, barriers, and market analyses of the potential use of SATs.
- To give out policy recommendations (WP 6) that will be based on the mentioned analyses of legislation, support schemes and markets, as well as on the results of the tests and demonstrations of pilot installations and their environmental and economic effects (WP 5) in the different countries.