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THE POTENTIAL USAGE OF DUCKWEED BIOMASS (Lemna minor) FOR BIOGAS PRODUCTION
Đurđica Kovačić
orcid.org/0000-0002-4568-6371
; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet u Osijeku, Osijek, Hrvatska
Davor Kralik
; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet u Osijeku, Osijek, Hrvatska
Daria Jovičić
; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet u Osijeku, Osijek, Hrvatska
Damir Matošević
; Vibrobeton d.o.o., Ivankovo, Hrvatska
Sažetak
Duckweed is a tiny free-floating aquatic plant which is typically found in quiet, nutrient rich ponds. The plants explosive reproductive capacity can make a pond completely covered in just a few weeks and this not only causes aesthetic problems, but summer fish kills are common too, so it is necessary to regularly remove it. The aim of this study was to determine the duckweed potential for biogas production compared to corn silage whose use for this purposes is often disputed because corn is one of the major cereals in human and animal nutrition. Duckweed is classified as a second generation of biofuels so it could be considered highly desirable feedstock for biogas production. The biogas yield of corn silage amounts to 180 m3/t while the yield of duckweed is slightly smaller, 176 m3/t. According to biogas yield of duckweed calculations of profitability of its cultivation on the fishponds in Croatia, construction costs and energy production in three biogas plants of 1 MW power were performed, also considering costs for collecting, transportation and manipulation of this feedstock.
Ključne riječi
biogas; biogas plant; corn silage; fishpond; duckweed
Hrčak ID:
139635
URI
Datum izdavanja:
13.5.2015.
Posjeta: 1.838 *