Project
Innovatie en ontwikkeling bij scheiden van feces en urine in stallen voor melkvee en varkens
Primary separation (of urine and feces) in pig and cattle houses reduces ammonia and methane emissions and provides better separation than mechanical separation of slurry afterwards. Primary separation systems have been developed, but implementation in practice must be encouraged. The causes of this are often: the extra costs, fear of technology under the slats, the system's susceptibility to malfunctions and the inability to valorize the urine and feces fractions.
Primary separation is just like adjustments to the diet a source measure. Source measures are (integrally) more effective than end-of-pipe techniques throughout the entire manure chain.
Wageningen Livestock Research was approached in 2020 by a number of livestock farms and supply companies that have developed an innovative system of primary separation, in which manure is no longer stored under the slats. Most systems can be used in existing stables.
Characteristic is that all systems no longer produce slurry. This concerns innovations in the development phase (TRL 3-5).
To further develop, measure, optimize and implement these innovations, research capacity is needed, which means that rapid scaling up to TRL 6-8 is expected. This concerns systems in cattle farming and in pig farming. The questions are answered together with entrepreneurs, so that the entrepreneurs can start building pilots. The partners' research questions are:
What is the qualitative and quantitative composition of the various manure flows?
Which emissions can we theoretically expect from these manure disposal options?
Which reduction in ammonia emission can be achieved if urease inhibitors are used in shear and belt systems?
What are the application and processing options of the different urine and manure fractions