The Efficiency of the Biogas Plant Operation Depending on the Substrate Used

The study aimed to assess the most efficient solution of raw material management in selected biogas plants into concept circular economy and evaluate due quality quantity feed final product obtained, which is biogas, as well at closed circulation (circular economy). evaluated two agricultural on a real scale one sewage treatment plant (in scale) northeastern Poland. A year-long showed that technical terms, best work efficiency achieved by processing: silage, manure, apple pomace, potato pulp (biogas No. 1), followed 3 processing chicken decoction, cattle poultry slaughterhouse waste (sewage sludge, flotate, feathers), finally, lowest was 2, plant, stabilized sludge methane fermentation process. Moreover, based results, it found gives energy production from 1 ton feed.