Proizvodnja bioplina s sosubstratom koruzno slamo

diplomsko delo univerzitetnega študijskega programa

Žiga Šut (Author), Lidija Čuček (Mentor), Zdravko Kravanja (Co-mentor)

Abstract

Namen diplomskega dela je ugotoviti ali je smiselno uporabiti koruzno slamo kot sosubstrat pri proizvodnji bioplina. Zanimalo nas je ali je koruzna slama dovolj zanimiva zamenjava za druge energetske rastline, kot npr. koruzno silažo. Ekonomsko je koruzna slama boljša izbira, saj je načeloma zastonj (ostanek na poljih po žetvi), prav tako pa ni primarni kmetijski proizvod. Eksperimentalni del smo si zastavili tako, da smo pod enakimi termodinamskimi pogoji preizkusili več različnih nastavitev mešanic živalskega gnoja, koruzne silaže in koruzne slame. Pri vseh nastavitvah smo uporabili inokulum iz bioplinarne Jezera (Panvita d.d) in substrate, ki jih uporabljajo v bioplinarnah Jezera in Draženci (Perutnina Ptuj d.d) z dodatkom koruzne slame. Preverili smo, če dodatek koruzne slame izboljša donos bioplina v različnih kombinacijah. Med poskusom smo spremljali dnevni in kumulativen dobitek bioplina ter sestavo pridobljenega bioplina. Ker je količina proizvedenega bioplina odvisna od količine ogljikovih hidratov, lignina in ekstraktov smo izvedli še analizo, ki nam je podala vrednosti le-teh pred in po anaerobni digestiji. V ta namen smo uporabili Klasonovo metodo. Potrdili smo hipotezo, da v določenih primerih koruzna slama izboljša proizvodnost bioplina, ovrgli pa smo hipotezo, da se z ligninom med procesom anaerobne digestije ne dogaja nič, saj smo zabeležili zmanjšanje mase lignina.

Keywords

bioplin;anaerobna digestija;koruzna slama;Klasonova metoda;lignin;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[Ž. Šut]
UDC:	662.767.2(043.2)
COBISS:	20302614
Views:	1254
Downloads:	71
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	PRODUCTION OF BIOGAS WITH A CORN STOVER AS A CO-SUBSTRATE
Secondary abstract:	The purpose of this diploma thesis is to find out if a corn stover can be used as a cosubstrate in biogas production. We were investigating if corn stover could be used as a replacement for other dedicated energy crops e.g. for corn silage. Economically corn stover is better choice since it is at almost no cost (it is a left-over after harvesting), and it is not a primary agricultural product. The experimental part was set in a way, that different mixtures (combinations) of animal manure, corn silage and corn stover were tested under the same thermodynamic conditions. All mixtures contained inoculum obtained from biogas plant Jezera (Panvita d.d) and substrates that are currently used in biogas plants Jezera and Draženci (Perutnina Ptuj d.d) with addition of corn stover. It was investigated if addition of corn stover improves biogas yield under different combinations. During the process the daily and cumulative yield and composition of biogas were measured. Since the quantity of produced biogas depends on the total content of carbohydrates, lignin and extractives, the analysis was made that gave us amounts of them present before and after anaerobic digestion. Fort his purpose, Klason method was applied. The hypothesis that in certain cases the addition of corn stover improves biogas yields was confirmed. On the other hand the hypothesis that nothing happens with the lignin during anaerobic digestion process was rejected because the reduction in mass of lignin was recorded.
Secondary keywords:	biogas;anaerobic digestion;corn stover;Klason method;lignin;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Embargo end date (OpenAIRE):	2019-10-18
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	XIII, 64 str.
ID:	9170354