Treatment of Liquid Manure
Liquid manure obtained from animal husbandry is a valuable fertilizer in modern agriculture. It must, however, be properly integrated into the natural nutrient cycle. Inexpert spreading of liquid manure is frequently one of the main reasons for very high concentrations of nitrates and phosphates in ground water or surface water. GEA Westfalia Separator has developed a corresponding processing concept for this problem. The aim is to process the liquid manure and the related surpluses of nutrients in the operations and to ensure that the products obtained are used properly.
Treatment of liquid manure
Natural fertilizer can be spread in a manner that is not detrimental to the soil and which complies with the stringent statutory regulations only after phosphate and nitrogen concentrations have been reduced. This job is done by a decanter from GEA Westfalia Separator which is able to separate between 70 and 90 percent of phosphate compounds and between 30 and 35 percent of nitrogen compounds from the liquid manure – with or without the addition of chemicals such as flocculents. The separated solids in a free-flowing consistency can be composted or used as nutrients. The clarified, environmentally liquid manure is transported for storage in a silo and can be spread as required as a high-grade fertilizer.
In addition to the fixed installations, GEA Westfalia Separator has also developed a mobile system which can easily and quickly be transported from farm to farm on a trailer or container. All necessary components such as pumps, conveyor technology and its own power supply provided by a diesel generator mean that the decanter is completely self-contained.