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master's thesis
Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje
Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2023. urn:nbn:hr:151:009797
Antunović, Sanja
Josip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
Department of Agricultural Engineering and Renewable Energy Resources

Institutional repository: Repository of the Faculty of Agrobiotechnical Sciences Osijek

Cite this document

Antunović, S. (2023). Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:151:009797

Antunović, Sanja. "Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2023. https://urn.nsk.hr/urn:nbn:hr:151:009797

Antunović, Sanja. "Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, 2023. https://urn.nsk.hr/urn:nbn:hr:151:009797

Antunović, S. (2023). 'Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, accessed 11 January 2025, https://urn.nsk.hr/urn:nbn:hr:151:009797

Antunović S. Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek; 2023 [cited 2025 January 11] Available at: https://urn.nsk.hr/urn:nbn:hr:151:009797

S. Antunović, "Proizvodnja bioplina iz otpadne biomase nakon prosijavanja soje", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:151:009797

Metadata
TitleProizvodnja bioplina iz otpadne biomase nakon prosijavanja soje
Title (english)Production of biogas from waste biomass after sieving soy
AuthorSanja Antunović
MentorDavor Kralik (mentor)
Committee memberZvonimir Steiner (predsjednik povjerenstva)
Committee memberRanko Gantner (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(Department of Agricultural Engineering and Renewable Energy Resources)
Osijek
Defense date and country2023-04-05, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Agricultural Engineering and Technology
Abstract
Gnojovka je izvrsna sirovinska podloga za anaerobnu digestiju, no zbog relativno niskog prinosa metana ne osigurava ekonomsku održivost te se ispituje kodigestija sa žetvenim ostatcima, što rezultira povećanom stabilnošću procesa i većom proizvodnjom. Za istraživanje proizvodnje bioplina koristile su se 2 skupine uzorka, svježa goveđa gnojovka i smjesa svježe goveđe gnojovke (95% ukupne biomase) i otpadne biomase nakon prosijavanje soje (5% ukupne biomase). Pokus se izveo u tri ponavljanja svake grupe, anaerobnom fermentacijom pri termofilnim uvjetima (55˚C) tijekom retencijskog razdoblja od 28 dana. Prosječna suha tvar u uzorku kontrolne skupine prije fermentacije ima 5,35 % ST, dok nakon fermentacije ima 2,88% ST. U eksperimentalnoj skupini, prije fermentacije, vrijednost suhe tvari je 13,13% te nakon fermentacije, vrijednost se smanjuje na 8,89%. U istraživanju obje skupine prije fermentacije imaju blago kiseli pH, dok nakon fermentacije je lužnato. Prosječna proizvodnja bioplina kontrolne grupe je 4.906,67 ml, dok eksperimentalne grupe iznosi 17.506,67 ml. Proizvodnja plina kontrolne grupe po 1 ml, iznosi 29,44 ml plina, dok eksperimentalna proizvede 105,04 ml plina po 1 gramu supstrata. Značajna razlika od 71,97 % u korist eksperimentalne grupe je pokazatelj koliko otpadna biomasa iz prosijavanja soje obogaćuje goveđu gnojovku i doprinosi u procesu proizvodnje.
Abstract (english)
The slurry is an excellent raw material for anaerobic digestion. Still, due to the relatively low methane yield, it does not ensure economic sustainability, and co-digestion with harvest residues is being tested, which results in increased process stability and higher production. For research on biogas production, 2 sample groups were used, fresh cattle manure and a mixture of fresh cow manure (95% of the total biomass) and waste biomass after soybean screening (5% of the total biomass). The experiment was performed in three repetitions of each group, by anaerobic fermentation at thermophilic conditions (55˚C) during a retention period of 28 days. The average dry matter in the sample of the control group before fermentation has 5.35% ST, while after fermentation it has 2.88% ST. In the experimental group, the value of dry matter is 13.13% before fermentation, and after fermentation, the value decreases to 8.89%. In the research, both groups have a slightly acidic pH before fermentation, while it is alkaline after fermentation. The average biogas production of the control group is 4,906.67 ml, while that of the experimental group is 17,506.67 ml. The gas production of the control group per 1 ml is 29.44 ml of gas, while the experimental group produces 105.04 ml of gas per 1 gram of substrate. A significant difference of 71.97% in favor of the experimental group indicates how much waste biomass from sieving enriches the cattle manure and contributes to the production process.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:151:009797
Study programmeTitle: Zootechnique; specializations in: The Nutrition of Domestic Animals, Hunting and Beekeeping, Special Zootechnique
Course: The Nutrition of Domestic Animals
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka zootehnike (magistar/ magistra inženjer/inženjerka zootehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Public notediplomski rad
Created on2023-04-26 14:01:24