Haryanto, Agus (2015) PENGARUH LAMA PERENDAMAN JERAMI DALAM LARUTAN SODA API DAN PENAMBAHAN RAGI (Saccharomyces cerevisiae) TERHADAP PRODUKSI BIOGAS. In: Seminar Nasional PERTETA, 23-24 November 2015, Fakultas Pertanian, Universitas Sriwijaya, Palembang.


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Biogas is a source of renewable energy derived from organic materials such as manure and agricultural wastes. The formation of biogas consists of three stages, namely hydrolysis, acidogenesis, and methanogenesis. The objective of this research was to study the effect of rice straw soaking within caustic soda solution and the addition of yeast (Saccharomyces cerevisiae) on biogas productionin batch digester.Experiment was conducted using 3-L batch digester using 2 L substrate composed of a mixture of cow manure and rice straw with a wet weight ratio of 3: 1 (cow manure:rice straw). The experiment was conducted using completely randomized factorial design of two factors. The first factor is soaking time of ricestraw in 1% caustic soda solutionwith three levels, namely 0 (without soaking), 1 day (24 hours) soaking, and 2 days (48 hours) soaking. The second factor was yeast dose with three levels, namely 0, 0.5, and 1 gram. All treatment was replicated 3 times. Characteristics of the substrate (water content, total solid, volatile solid, ash, and C/N ratio), and digester performance (pH and temperature), production and productivity biogas was measured. Results show that cumulative biogas production was significantly affected by soaking time at α = 5%. Yeast addition until 1 gram, however, did not influence the biogas production. The analysis also showed that there is no significant interaction between soaking time and yeast dose on the biogas production. Mixture of cowdung and rice straw without soaking gave the highest cummulative biogas production (6,593 mL for 30 days). Biogas produced from all treatments provide a blue flame indicatinga high methane gas content.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TP Chemical technology
Divisions: Fakultas Pertanian (FP) > Prodi Teknik Pertanian
Depositing User: Dr. Ir. AGUS HARYANTO
Date Deposited: 30 Mar 2020 01:52
Last Modified: 30 Mar 2020 01:52
URI: http://repository.lppm.unila.ac.id/id/eprint/18911

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