Optimizacija procesa proizvodnje bioplina na Bioplinarni Nemščak s predobdelavo substrata in kombiniranjem z odpadnim blatom : diplomska naloga

Žitek, Filip (author), Drev, Darko (mentor), Kolbl Repinc, Sabina (comentor)

Namen diplomske naloge je povečati količino proizvedenega bioplina s predobdelavo substrata in kombiniranjem z odpadnim blatom. Za anaerobno razgradnjo različnih substratov smo uporabili pilotni reaktor za določevanje bioplinskega potenciala na Bioplinarni Nemščak. Pilotni reaktor je bil zgrajen leta 2009 za namen preizkušanja novih substratov pri procesu pridobivanja bioplina. Pilotni reaktor ima delovni volumen 2000 litrov, nad njim pa je plinohram volumna 500 litrov. Reaktor se ogreva do mezofilnega temperaturnega območja. Krmili se ga preko računalniškega programa, ki sproti beleži tudi količino nastalega bioplina. Sestavo bioplina smo merili z ročnim analizatorjem sestave plina. Najprej smo v reaktorju preizkušali nespremenjeno silažo in ji določili suho snov, organsko snov, donos bioplina in donos metana. Nato smo v reaktorju preizkušali silažo, ki smo jo pred doziranjem zmleli z ročnim sekljalnikom. Tudi mleti silaži smo določili donos bioplina in metana. Kot tretji substrat smo preizkušali odpadno blato iz komunalne čistilne naprave Murska Sobota. Odpadno blato, ki tam nastaja, je namenjeno za odlaganje, zato se nam je zdel ta substrat primeren za anaerobno razgradnjo. Vse tri substrate smo preizkušali po enaki metodi in z enakimi robnimi pogoji. Za potrebe diplomske naloge smo spremljali tudi delovanje Bioplinarne Nemščak v obdobju enega mesca.

• Language: Slovenian
• Keywords: gradbeništvo, diplomska naloga, UNI, VKI, substrat, bioplin, pilotni reaktor, anaerobna razgradnja, metan, koruzna silaža, blato, Bioplinarna Nemščak
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Place of publishing: Ljubljana
• Publisher: [F. Žitek]
• Year: 2015
• Number of pages: XI, 60 str., 6 pril.
• PID: 20.500.12556/RUL-32767
• UDC: 628.3:620.92(043.2)
• COBISS.SI-ID: 7036769
• Publication date in RUL: 10.07.2015

ŽITEK, Filip, 2015, Optimizacija procesa proizvodnje bioplina na Bioplinarni Nemščak s predobdelavo substrata in kombiniranjem z odpadnim blatom : diplomska naloga [online]. Bachelor’s thesis. Ljubljana : F. Žitek. [Accessed 9 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=32767

Secondary language

• Language: English
• Title: Process optimization of biogas production at Nemščak biogas plant by pre-treatment of the substrate and combining with waste sludge

Abstract

The purpose of this thesis is to increase the amount of biogas produced by pre-treatment of the substrate and combining with waste sludge. For anaerobic digestion of different substrates, we used a pilot reactor to determine the biogas potential at Nemščak biogas plant. The pilot reactor was built in 2009 for the purpose of testing new substrates in the process of biogas production. The pilot reactor has a working volume of 2000 litres; there is a gas tank above it with the volume of 500 litres. The reactor is heated to a mesophilic temperature range. It is controlled through a computer program that continuously records the amount of the resulting biogas. The composition of the biogas was measured with a handheld gas composition analyser. First we tested the unchanged silage in the reactor and determined her dry matter, organic matter, biogas yield and methane yield. Then we tested the silage in the reactor, which was ground with a hand mincer prior to dosing. Ground silage was also determined with biogas and methane yield. As a third substrate we tested waste sludge from Murska Sobota municipal wastewater treatment plant. Waste sludge generated there is destined for disposal; therefore, we found this substrate suitable for anaerobic digestion. All three substrates were tested using the same method and the same boundary conditions. For the purpose of this thesis we monitored Nemščak biogas plant for a period of one month.

• Keywords: graduation thesis, civil engineering, substrate, biogas, pilot reactor, anaerobic digestion, methan, corn silage, sludge, biogas plant Nemščak