@ARTICLE{Pokój_Tomasz_Production_2014, author={Pokój, Tomasz and Gusiatin, Zygmunt M. and Bułkowska, Katarzyna and Dubis, Bogdan}, volume={vol. 40}, number={No 4}, journal={Archives of Environmental Protection}, howpublished={online}, year={2014}, publisher={Polish Academy of Sciences}, abstract={The aim of this study was to investigate the influence of residual glycerine (5 and 10% w/w) from the biodiesel industry, used as a co-substrate, on biogas production from maize silage. The experiments were conducted in a laboratory-scale, single-stage anaerobic digester at 39ºC and hydraulic retention time (HRT) of 60 d. Addition of 5% residual glycerine caused organic load rate (OLR) to increase to 1.82 compared with 1.31 g organic dry matter (ODM) L-1d-1 for maize silage alone. The specific biogas production rate and biogas yield were 1.34 L L-1d-1 and 0.71 L g ODM-1 respectively, i.e. 86% and 30% higher than for maize alone. Increasing the residual glycerine content to 10% increased OLR (2.01 g ODM L-1d-1), but clearly decreased the specific biogas production rate and biogas yield to 0.50 L L-1d-1 and 0.13 L g ODM-1 respectively. This suggested that 10% glycerine content inhibited methanogenic bacteria and organics conversion into biogas. As a result, there was accumulation of propionic and valeric acids throughout the experiment.}, type={Artykuły / Articles}, title={Production of Biogas Using Maize Silage Supplemented with Residual Glycerine from Biodiesel Manufacturing}, URL={http://journals.pan.pl/Content/85976/PDF/aep-2014-0035.pdf}, doi={10.2478/aep-2014-0035}, keywords={anaerobic digestion, residual glycerine, energy crops, maize silage, glycerol osmotic pressure}, }