Project Description
Importance of manure management and treatment in livestock farming and the biogas industry is increasing significantly. In terms of resource management, raw manure and digestate also play an important role in the national nutrient budget. Liquid manure is often applied as an N-rich agricultural fertilizer. However, the chemical characteristics of nitrates make them susceptible to leaching through the soil into groundwater. The main obstacles of manure treatment are i) Low price range in contrast to the complexity of the process task, ii) Strong diversity of asset buyers and operators and iii) Uncertainty of the planning situation. The overall objective of the ‚KompaGG-N‘ project is to develop a competitive complete treatment of liquid manure and digestate by taking regional and industry-specific conditions into account. The main focus of the partner institute ISAH will be on the sequential evaporation and deammonification process together with BIORESTEC UG and E&P Gmbh whereas the research at DVGW-EBI will distinctly focus on optimizing solid/liquid separation by membrane filtration process as a pretreatment process for the sequential evaporation and deammonification step. Further identification of the influence of different treatment levels on the retention of micropollutants (especially antibiotics from the animal fattening area) and antibiotic resisting genes will be examined.
