Biogas production in biogas plant Draženci and options for reducing corn silage in input substrate

Namen diplomske naloge je primerjati izplen bioplina in metana v Bioplinarni Draženci pri trenutni proizvodnji bioplina v primerjavi z bioplinom, proizvedenim z nižjim deležem koruzne silaže na podlagi teoretičnih izračunov. V ta namen smo naredili izračune za pet različnih možnih scenarijev za izplen bioplina in metana ter nato naredili primerjavo med scenariji. Pri trenutni proizvodnji bioplina v Bioplinarni Draženci, ki za vhodne substrate uporablja perutninski gnoj, koruzno silažo in odpadne maščobe v razmerju 70:25:5, smo izračunali izplen skupnega bioplina 148 m3/t sveže mase in izplen metana 90,16 m3 pri eni toni vhodne substratne mešanice. Ugotovili smo, da najvišji izplen bioplina in metana dosežemo pri scenariju 1, ki trenutno poteka v Bioplinarni Draženci. Pri primerjavi izračunanih vrednosti za izplen smo ugotovili, da obstajajo možnosti za zmanjšanje koruzne silaže v vhodnem substratu in ga lahko nadomestimo z odpadnimi maščobami, ki so velik energetski potencial.The aim of this diploma work is to compare the yield of biogas and methane in the biogas plant Draženci in the current production of biogas compared with biogas produced a lower proportion of maize silage on the basis of theoretical calculations. We have made calculations for five different scenarios for the recovery of biogas and methane and then make a comparison between the scenarios . In the current production of biogas biogas plant Draženci that the feedstock used poultry manure , corn silage and waste fat ratio 70:25:5 we calculated the total yield of 148 m3 of biogas /t fresh weight and yield of 90.16 m3 of methane at one tone input substrate mixture. We found that the highest yield of biogas and methane obtained in scenario 1 , which is currently in a biogas plant Draženci . When comparing the calculated values for yield , we find that there are options for reducing corn silage in the input substrate and may be replaced by waste fats that are high energy potential