20.500.12556/DKUM-89637 Presnova alternativnih neprehranskih substratov v bioplin s čim manjšo porabo vode v procesu diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje Conversion of alternative non-food substrates into biogas minimizing water consumption in the process V diplomskem delu smo raziskovali dve glavni vprašanji. Prvo vprašanje, ki smo si ga zastavili, je bilo, ali lahko koruzna slama služi kot učinkovita alternativa silaži za proizvodnjo bioplina. Drugo vprašanje pa se je osredotočalo na vpliv deleža suhe snovi v mešanicah na proizvodnjo bioplina in možnost zmanjšanja porabe vode v procesu anaerobne digestije. Izvedli smo dva eksperimenta, kjer smo z različnimi nastavitvami v treh paralelkah ugotavljali učinkovitost anaerobne digestije. Pri nastavitvah smo uporabljali mešanice s piščančjim gnojem z nastiljem, koruzno slamo oz. silažo ter inokulumom iz obstoječe bioplinarne. V prvem eksperimentu smo koruzno silažo primerjali s koruzno slamo iz dveh različnih lokacij v dveh različnih razmerjih (osnovni in dvakratni delež slame), v drugem eksperimentu pa smo za najučinkovitejšo mešanico izvedli še analize z različnimi deleži suhe snovi v fermentorju (med 2 in 14 %). Tekom obeh eksperimentov smo spremljali sestavo in količino bioplina ter razgradnjo substratov. V prvem delu raziskave smo ugotovili, da je lahko koruzna slama zelo učinkovita alternativa silaži. Slama je proizvedla primerljive količine bioplina, kar potrjuje njen potencial za uporabo v procesu anaerobne digestije. Ta ugotovitev ima pomembne ekonomske implikacije, saj lahko uporaba koruzne slame zmanjša stroške surovin in poveča učinkovitost proizvodnje. Dobljene rezultate smo primerjali z rezultati, kjer sta bili uporabljeni slama in silaža druge letine. Primerjava je pokazala, da so razlike v rezultatih minimalne, kar potrjuje konsistentnost in zanesljivost rezultatov, ne glede na variabilnost lokacij in letin substratov. V drugem delu raziskave, kjer smo se osredotočili na vpliv deleža suhe snovi v fermentorju, smo ugotovili, da višji deleži suhe snovi omogočajo zmanjšanje porabe vode v procesu, hkrati pa ohranjajo učinkovitost proizvodnje bioplina. Rezultati so pokazali, da so mešanice z višjim deležem suhe snovi dosegale primerljive rezultate kot mešanice z nižjim deležem suhe snovi, kar omogoča bolj trajnostno upravljanje z vodo in viri. In this thesis, two main questions were investigated. The first question was whether corn straw could serve as an effective alternative to silage for biogas production. The second question focused on the impact of the dry matter content in mixtures on biogas production and the potential for reducing water consumption in the anaerobic digestion process. Two experiments were conducted, where different settings in three parallels were used to determine the efficiency of anaerobic digestion. The settings involved mixtures with chicken manure with bedding, corn straw or silage, and inoculum from an existing biogas plant. In the first experiment, corn silage was compared with corn straw from two different locations in two different ratios (basic and double straw content). In the second experiment, the most effective mixture was analyzed with varying dry matter content in the fermenter (2 % to 14 %). During both experiments, the composition and quantity of biogas and the degradation of substrates were monitored. In the first part of the research, it was found that corn straw can be a very effective alternative to silage. Corn straw produced comparable amounts of biogas, confirming its potential for use in the anaerobic digestion process. This finding has significant economic implications, as the use of corn straw can reduce raw material costs and increase production efficiency. The results were compared with those from the previous studies using straw and silage from different harvest years. The comparison showed minimal differences in the results, confirming the consistency and reliability of the findings, regardless of the variability in substrate locations and harvest years. In the second part of the research, which focused on the impact of dry matter content in the fermenter, it was found that higher dry matter content allows for reduced water consumption in the process while maintaining biogas production efficiency. The results showed that mixtures with higher dry matter content achieved comparable results to those with lower dry matter content, enabling more sustainable water and resource management. bioplin anaerobna digestija silaža koruzna slama poraba vode delež suhe snovi biogas anaerobic digestion silage corn straw water consumption dry matter content true true false [S. Osvald] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-07-30 18:54:47 2024-10-01 16:25:42 2025-01-24 03:12:38 0000-00-00 00:00:00 2024 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (IX, 60 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 662.767.2(043.2) 223559683 VS_Osvald_Simon_2024.pdf VS_Osvald_Simon_2024.pdf 1 B3993C80214CC23089349FEDEF860467 a048a92fcb1464e9ab1339ea9a6a59382c581b781322c8e2cb001f74f0106831 18b49df5-7792-11ef-9603-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=185615 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0