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Lely Sphere is a circular manure-handling system for separating mineral streams and creating value from emissions. The system separates manure and urine and converts nitrogen emissions into valuable fertilisers. You can use these for precision fertilisation. In this way, you improve closing mineral cycles as well as barn climate.
Enzymes in the manure convert urea in the urine into ammonia. This vaporises within a few hours. Any ammonia emissions captured and converted into circular nitrogen fertiliser do not need to be compensated for with purchased fertilisers. Test barns show that reducing ammonia emissions by more than 70%, compared to official standards, is feasible. This resulted in a preliminary emission factor on the RAV list of 3,6 kg NH3 per animal place a year. With this you can ‘harvest’ 10 kg to 20 kg of nitrogen per cow per year.
The Lely Sphere system separates three mineral streams. The urine, containing potassium, the faeces, containing organic nitrogen and phosphate, and fertiliser-grade mineral nitrogen in the acidified solution of the filter system. You can use each type of fertiliser to feed the soil and crops optimally, exactly when and where this is needed.
The barn has cleaner and fresher air, because the natural ventilation remains and doors to pastures can stay open. Lely Sphere extracts the manure gases. This makes the air healthier and the barn safer, because no gases accumulate under the floor. In addition, the manure robot provides a hygienic environment by cleaning the entire floor very frequently. This prevents hygiene-related hoof problems and udder health problems.
A floor that separates the urine from the faeces
Separation strips close the existing slatted floors. These stainless steel strips have holes through which urine and air can flow into the pit. The faeces remain on the floor. This is the first gain for the ammonia emissions reduction, because the urea degradation process starts immediately after the cow urinates.
A revolutionary manure robot for closed floors
The Discovery Collector is specifically designed for barns with solid floors. It has a revolutionary and diverse approach compared to traditional manure scrapers. The Collector does not push manure, but vacuums it. This makes the build-up of manure – in which cows stand – a thing of the past.
A unit that captures ammonia from the barn and manure pit
The N-Capture creates pressure in the manure pit by extracting the air and manure gases that accumulate under and above the floor. Before the air exits, it passes through a filter in the N-Capture. This filter captures nitrogen from the air with an acidified solution.
Capture nitrogen with sulphuric or nitric acid
The N-Capture works with sulphuric acid or nitric acid. Both are effective; the difference is in the fertilisation value. These acids are supplied in safe, double-walled Variboxes. The system has an automatic empty signal. This ensures that the supplier installs a new Varibox in time.
Use circular nitrogen fertilisers to feed your crops according to their needs
When the acidified solution is saturated, the ammonium nitrate or ammonium sulphate is stored in the fertiliser silo. You can use the circular fertiliser much more precisely for the nutrition of crops. In addition, the circular fertilisers create far fewer emissions compared to spreading slurry.
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The air and manure gases pass through a filter package with structural blocks through which an acidified liquid drips. The ammonia in the air reacts with the sulphuric or nitric acid and dissolves in the liquid as ammonium sulphate or ammonium nitrate. The value of these circular fertilisers covers the costs of acids, electricity and water, used by the N-Capture.More about Lely Consumables
An animal-friendly and productive environment contributes to optimal cow health and well-being. It also lengthens the lactation cycle. By choosing the best and most comfortable design for your barn with the right resources you can improve cow health. Milk yield also increases and costs go down.