EFFECT OF ADDITION COCONUT PULP AND BANANA PEEL ON PRODUCTION BIOGAS FROM COW MANURE

Abstract

Biogas is a renewable or alternative energy utilizing the decomposition process of awide range of organicwastes
that generates methane gas (CH4). The purpose of this study is to evaluate the effect of the addition of coconut
pulp and banana peels on biogas yield from cow dung. Parameters to be observed include: characteristics of
substrates, degree of acidity (pH), temperature, biogas production and biogas yield, as well as the flame from
biogas burning. This research is expected to produce an appropriate technology for treating waste of coconut
pulp and banana peels into value added products and scientific information on the effect of the addition of
coconut pulp and banana peels to biogas. The experiment design was a completely randomized design of six
treatments,with consecutive composition of cowdung : banana peel : coconut pulp namely A50:40:10, B50:30:20,
C 50:20:30, D 50:10:40, E 50:0:50, and F 50:50:0 with 3 replications. The data were analyzed by using ANOVA
followed byDuncan test. The results showed that the additionof coconut pulp and reductionof banana peels in the
biogas composition affected pH, C/N ratio, and biogas production, but had no effect on the temperature, and
biogas yield. The increase in coconut pulp resulted in lower pH, the C/N ratio, and biogas production. Optimum
condition is the treatment with composition of 50:50:0 without the addition of coconut pulp with a C/N ratio of
21,22 and pH of 5,5-6,5.
Keywords: banana peel, biogas yield, coconut pulp, C/Nratio, renewable energy.