Project
Voorkomen van methaanverliezen uit varkensstallen door dagontmesting en koeling
Innovative techniques and measures should be developed and implemented in livestock houses, manure storages and processing systems to achieve the emission reduction targets in 2030. The LNV research program Livestock houses and Storage systems consists of Measurement and monitoring (E), research (F), pilots and demos (G) and communication (H). Research should show which reduction techniques work and how much emission reduction this yields. In addition to research aimed at new barns, cost-effective adaptations to existing barns are also examined. The effects of the reduction options will be tested in practice and demonstrated at pilot farms and demo farms. In order to implement reduction measures, knowledge about new and existing measures is disseminated among the target group of livestock farmers and extension people. The approach provides action perspectives for livestock farmers to reduce emissions and encourage application. This study (F) yields a housing system that is low in emissions in terms of CH4, odor and NH3. Practical measurements provide a pilot and a demo, as well as an emission factor.
De Hoeve Innovatie (DHI) has been working for a number of years on systems to tackle the emissions from its pig houses at the source. This not only reduces emissions from the barn, but also greatly improves the air quality inside the barn. This is achieved through a combination of measures. The manure is removed daily to a bio-digester for all categories of pigs. By removing the fresh manure from the barn daily, there is very little emission of methane from that manure. Measurements to date show emission reductions for methane of 67 to 93%. Through further optimization it is expected that the methane emission from the manure can be reduced to almost zero, leaving only the enteric emission of the animals. In addition to methane, ammonia and odor emissions are also reduced. The objective is to achieve a reduction of 70 to 80% for ammonia and of approximately 50% for odour. This integral emission reduction is important to get these systems implemented in practice.