Urine from pig manure by "VeDoWS" adapted stable construction system (IDs: 322 and 323)

Technology description Underneath the slatted floor of the VeDoWS stable system a shallow cellar is constructed which enables the primary separation of urine and solid manure. The cellar consists of two inclining parts with in its middle an opening of 18 to 22 mm. Using a scraper, the solid manure is removed from the manure gutter daily. This primary separation of manure in the cellar is the basis of lower ammonia emissions. There is no need for chemicals by using this technique. By adaption of a stable system, pig manure is being primary separated in solid manure and urine in the stable. The main advantage of this separation technique is that there are less ammonia, GHG emissions and odour in the stable. The hydrolysis of urea to carbon dioxide (CO2) and ammonia (NH3) is catalysed because of urease, an enzyme which is found in solid manure. Therefore when solid manure and urine are collected separately there is less NH3 emission because urine is less in contact with urease. Another advantage is that this technique implies a better biogas potential for the solid manure, because it is removed on a daily basis and therefor remains fresh. Moreover, the urine is better suitable as a fertilizer because it contains most of the nitrogen and potassium and is not phosphorus limited. Linked technology: Technology for N recovery as urine from pig manure with "VeDoWS" adapted stable construction system, ID:323 https://nutriman.net/farmer-platform/... Product description In an adapted stable construction VeDoWS, pig manure is being primary separated in solid manure and urine in the stable. The main advantage of this separation technique is that there are less ammonia, GHG emissions and odour in the stable which is a benefit for the health of both the farmer and animals. The pig urine which is separated primary from the solid manure contains most of the nitrogen and potassium, while the phosphorus is mainly found in the solid manure. The N/P ratio is high. Therefore the pig urine is suitable as a good fertilizer without being phosphorus limited. The solid manure is suitable as biomass feed for a digester because it is kept fresh due to a daily removal of the manure. The disposal cost for separated collection of manure and urine is also less expensive compared to non-separated manure. Due to the liquid composition field application and dose is easy to set. As the nitrogen content is limited, not more than 50 tonnes/ha can be applied. Linked product: Urine from pig manure by "VeDoWS" adapted stable construction system, ID:322 https://nutriman.net/farmer-platform/...