Effect of alternative sources of input substrates on biogas production and its quality from anaerobic digestion by using wet fermentation
Laen...
Kuupäev
2018
Kättesaadav alates
Autorid
Krištof, K.
Gaduš, J.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The aim of the study was to confirm the suitability of alternative input substrates for
production of biogas in order to
decrese the need of utilization of high quality maize silage. All
of the experiments were conducted by employement of wet fermentation process in mesophilic
conditions (temperature in fermentor 40
±
1
°C
) in experimental fermentor with volume 5 m
3
.
The exp
eriments were realised in operating conditions of biogas station designed for utilization
of agricultural biowaste. The experiments were divided into two alternatives (I and II cycle) and
one controle input substates. In the first alternative (I cycle) was
daily dosage formed by 33
kg
of
Amaranth
and 250
L
of controle manure mixture. In this cycle, more than 3
–
times greater
specific production of biogas was observed with average methan content 63.9% in comparison
with controle manure mixture (80
:
20%, liquid
manure and manure). In the second alternative
(II cycle) was daily dosage formed by 19.5
kg
of sugar beer cuts, 3.3
kg
of maize silage, 1.9
kg
of oil
-
seed rape moldings, 2.5
kg
of glycerine and 250
L
of controle manure mixture. In this cycle,
more than 5.
9
–
times greater specific production of biogas was observed. The decrease in averare
methan content 55.1% however also decrease in average content of hydrogen sulphide (128
ppm
)
was observed as well. An unquestionable advantage for both tested alternative m
ixed substrates
was increase in biogas production and its quality in comparison with control substrate based on
manure. At the basis of these findings can be concluded that both tested alternative input substrate
mixtures are suitable as co
–
fermentation su
bstances with great potential to increase the biogas
production and its quality in case of wet fermentation processes.
Kirjeldus
Article
Märksõnad
biogas, co-fermentation, co-substrates, anaerobic digestion, wet fermentation, articles