Innovative process for environmentally friendly manure treatment comes onto the market

Phys.org
June 02, 2018
By Phys.org
The BioEcoSIM process for the treatment of liquid manure developed at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB is being introduced to the market by SUEZ Germany as an operator of large-scale plants.

This creates an opportunity for farms to dispose of surplus manure and digestate. Slurry treatment products are phosphate fertilizers, ammonium fertilizers and organic soil improvers.

Around 200 million cubic meters of liquid manure from livestock farming end up in fields and meadows in Germany every year.

More than 90 percent of the "black gold" consists of water and contains considerable amounts of the important plant nutrients nitrogen and phosphorus. However, if more liquid manure is applied to the fields than the soil can bind and plants can absorb, microorganisms convert the ammonium nitrogen in the soil into nitrate that seeps into the groundwater.

The problem: Where large quantities of liquid manure are produced, there is often a lack of arable land that needs to be fertilized. For this reason, fattening farms use so-called slurry exchanges to order tankers to transport their slurry to areas requiring nutrients – often several hundred kilometers away. | READ MORE

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