BIOGAS PRODUCTION FROM ROTTEN APPLE, GUAVA, AND PAPAYA
| Main Authors: | , FAJAR SANTOSO, , Dr. Ir. Muhammad Nur Cahyanto, M. Sc. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2013
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/125397/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=65565 |
Daftar Isi:
- Fruit wastes are rich of organic compounds. Organic compounds contained in fruit waste must be analyzed to know the whole effect on fermentation process especially for anaerobic bacteria. Some natural organic compounds has a potency to inhibit the anaerobic digestion. If there are some organic compounds that disturb bacteria�s environment to grow, biogas fermentation system will be unstable and digestion process will be ceased. This study consisted of : (a) Characteristic of both rotten and fresh guava, papaya, and apple. Characterization was mainly to know water content, total solid, volatile solid, hemicellulose rate, cellulose rate, total sugar content, soluble starch, total-N, and fat content, (b) Biogas fermentation in glass serum digester. Theoritical methane yield and methane yield obtained from fermentation were compared. Methane yield of rotten guava, rotten papaya, and rotten apple reached 0.3463 Nm 3 CH4/kg VS, 0.4168 Nm 3 CH4/kg VS, and 0.3322 Nm 3 CH4/kg VS, respectively with yield ratio 82.52 %, 99.13%, and 97.87%, respectively. Methane yield of fresh guava, fresh papaya, and fresh apple reached 0.2222 Nm 3 CH4/kg VS, 0.2907 Nm 3 CH4/kg VS, and 0.2863 Nm 3 CH4/kg VS, respectively with yield ratio of 51.66 %, 86.29 %, and 90.49 %, respectively. The highest methane yield was obtained from fermentation of rotten papaya, 0.4168 Nm 3 CH4/kg VS and the lowest methane yield was obtained from fermentation of fresh guava, 0.2222 Nm 3 CH4/kg VS.