TY - JOUR AB - 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 39 degrees C 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(-1)d(-1) for maize silage alone. The specific biogas production rate and biogas yield were 1.34 L L(-1)d(-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(-1)d(-1)), but clearly decreased the specific biogas production rate and biogas yield to 0.50 L L(-1)d(-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. AD - Univ Warmia & Mazury, Dept Environm Biotechnol, PL-10709 Olsztyn, Poland AN - WOS:000347112300002 AU - Pokoj, T. AU - Gusiatin, Z. M. AU - Bulkowska, K. AU - Dubis, B. DA - Dec DO - 10.2478/aep-2014-0035 IS - 4 J2 - Arch Environ Prot KW - anaerobic digestion LA - English N1 - Ax7rj PY - 2014 SN - 2083-4772 SP - 17-29 ST - Production of Biogas Using Maize Silage Supplemented with Residual Glycerine from Biodiesel Manufacturing T2 - Archives of Environmental Protection TI - Production of Biogas Using Maize Silage Supplemented with Residual Glycerine from Biodiesel Manufacturing UR - ://WOS:000347112300002 VL - 40 ID - 10436 ER -