| Summary: | All this time, banana stem waste has not been used well. If people make
use it properly, it can increase the economic value. Banana stem contain the
chemical substances such as selulose, hemiselulose, and lignin. Before the
hydrolysis they contain 27,86% of selulose , 12,08% of lignin 35,95% of
hemiselulose, and 0,03% of glucose. After hydrolysis they contain 0, 52% of
selulose, 1,23% of lignin, 0,44% of hemiselulose, and 1,14% of glucose. Based
on the result of laboratory analysis, the banana stem waste consists of C/N with
the ratio 35,28%. This research is to find out the variety of the proper time of the
hydrolysis prosess and to know the influence of the addition of the banana srem
waste to the mixture of the cow manure to performence of the biogas production.
The research methodologies which are used consist of two steps. The first
step is by using the variety hydrolysis times that is, 15�, 30�, 45� and 60�. The
second step is by adding the banana stem waste on the variety of 60�, with the
comparations of mixsture of the cow manure are: 1:2, 1:3, 1:4. The research is
done by using batch anaerobic reactor, and the observation is held for 30 days.
The measure of the gas volume is done every day, while the experiment on the
level metana gas is held on the 30
th
day by using the chromatography gas (CG).
The result of the research is that the banana stem wast of the result of
hydrolysis process can improve the performence on biogas production as the
mixture of 1:1 with the time variety hydrolysis of 60�will produce the better
metana gas. Based on the result of laboratory analysis, the data of production
accumulation of biogas production and the metana gas concentrate, it is obtained
28,1662% of metana gas.
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