Anaerobic co-fermentation of molasses and oil with straw pellets
Laen...
Kuupäev
2018
Kättesaadav alates
Autorid
Dubrovskis, V.
Plume, I.
Straume, I.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The
average grain and straw production in Latvia is increasing in last decade. Straw is
not always managed properly and its utilisation in biogas plants can be considered as an
alternative. Straw is not the best feedstock for methane production, because it has
high C/N ratio.
Co
-
fermentation with other biomass with higher N content can improve the methane production.
Purpose of investigation is to evaluate the wheat straw pellets biomass suitability for production
of the methane and effect of its co
-
fermentatio
n with molasses, fried sunflower oil and catalyst
Metaferm. The anaerobic digestion process for biogas production was investigated in 0.75
L
digesters, operated in batch mode at temperature 38
±
1.0°C. The average biogas yield per unit
of dry organic matte
r added from digestion of wheat straw pellets was 0.540
L
g
-
1
DOM
and
methane yield was 0.285
L
g
-
1
DOM
. Average biogas yield from co
-
fermentation of wheat straw
pellets and molasses was 0.777
L
g
-
1
DOM
and methane yield was 0.408
L
g
-
1
DOM
. Average biogas
yie
ld from fermentation of wheat straw pellets with 1ml Metaferm was 0.692
L
g
-
1
DOM
and
methane yield was 0.349
L
g
-
1
DOM
. Average biogas yield from co
-
fermentation of wheat straw
pellets and sunflowers oil was 1.041
L
g
-
1
DOM
and methane yield was 0.639
L
g
-
1
DOM
. All
investigated biomasses can be used for methane production.
Kirjeldus
Article
Märksõnad
anaerobic digestion, biogas, methane, molasse, sunflower oil, wheat straw pellets, articles