Mechanical separation of slurry improves the application and fertilising qualities of the separated slurry vs original slurry. Separating slurry also reduces the amount of storage needed by up to 30%.
By separating the liquid from the solids:
• The volume liquid volume reduces by 17 to 20% – The estimated application cost of £1.60/m3 working on a rate of 47 m3 per hour equates to £75/hour which give a 10 to 12 minute per hour time saving. Increasing the amount of slurry that can be applied per hectare/hour.
• The ammonia fraction of nitrogen which is directly taken up by plants also increases by 6 % resulting in a faster absorption rate by the growing crop.
• The absence of large solid particles makes application with dribble bars, trailing shoes and shallow injectors easier reducing the time and cost of spreading.
• Phosphorus composition is reduced by 18%.
The resulting solids are compostable with a high nutrient concentration, especially organic nitrogen and phosphate which makes it ideal for spreading at the cultivation stage pre-drilling of cereal and maize crops. The product is friable – easy to spread and minimises the wear and tear of machinery.
A composting process of three to six months will reduce the mass volume by 50% giving a more concentrated product, which can be exported cost effectively as part of your NVZ plan or sold to non-livestock farms.
Livestock farmers all over the world are now investing heavily in this technology to process their animal waste, turning a problem into a benefit and reducing their fertiliser costs. If you would like an appraisal of your current slurry handling and storage system, please contact Mark at firstname.lastname@example.org or your local FCG Office.