Rahmat, Budy and Hodiyah, Ida and Supriadi, Apip and Hikmat, Memet and Purnama, Gilang Design of biogas digester with thermophilic pretreatment for reducing fruits wastes. International Journal of Recycling of Organic Waste in Agriculture.
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Abstract
Purpose This study aimed to design a biogas digester that works thermophilically and mesophilically and tested its perfor- mance to produce biogas and digestate. Methods This study used some experimental methods, which consists of: (1) design and construction process of the digester which can facilitate the thermophilic process as a pretreatment of the feedstock and the anaerobic digestion process of the substrate; (2) determination of the quantity of biogas, liquid digestate, and compost; and (3) testing digestate quality as a liquid organic fertilizer for Ipomoea reptans. Results The built biogas digester was able to accommodate thermophilic digestion that runs intensely in the pretreat- ment tank, where the complex organic compounds, namely cellulose and hemicellulose, decomposed intensively, so that it becomes a suitable substrate. As raw material, every 4 kg of banana waste, can produce biogas, digestate and dry compost of 10,200 cm3 (highest yield), 5900 mL, and 1420 g, respectively. The highest Ipomoea reptans growth was achieved by digestate treatment from banana waste. Conclusions Thermophilic pretreatment could shorten the processing time to 3 days. Digestate treatment as a liquid organic fertilizer is able to provide a better supply of nutrients for plants
| Item Type: | Article |
|---|---|
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Fakultas Pertanian > Agroteknologi > Artikel Dosen Agroteknologi |
| Depositing User: | Mrs Linda Amelia Oktavia |
| Date Deposited: | 18 Nov 2022 02:32 |
| Last Modified: | 18 Nov 2022 02:32 |
| URI: | http://repositori.unsil.ac.id/id/eprint/7436 |
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