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Microstructural and chemical analysis of selected poultry bedding materials — potential substrates in agricultural biogas production technologies

Sakiewicz P., Cebula J., Piotrowski K., Bohdziewicz J.

Eco-Energetics : technologies, environment, law and economy

2019

T. 2

113--122

The research results concerning microstructure and chemical composition of selected post-processed poultry beddings derived from industrial-scale poultry breeding are presented. It was found, that the proper trend is providing the optimal conditions in respect to bred-animals comfort. The highest concentration of biogenic elements — especially nitrogen and potassium — was observed for the samples of poultry manure premixed with the straw. High quality of bedding biomass influences the inhibition of poultry-manure decomposition processes advantageously. In effect, biogas yield increases (due to C/N adjustment), in spite of the fact that increase in ammonium nitrogen concentration simultaneously inhibits the methane fermentation process.