Effect of inoculum types and microbial community on thermophilic and mesophilic solid-state anaerobic digestion of empty fruit bunches for biogas production
| Autor: | Chonticha Mamimin, Wantanasak Suksong, Sompong O-Thong, Prawit Kongjan, Poonsuk Prasertsan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology 010405 organic chemistry Thermophile Pulp and paper industry biology.organism_classification 01 natural sciences Methanosaeta Methane 0104 chemical sciences Anaerobic digestion chemistry.chemical_compound Clostridium Microbial population biology chemistry Agronomy and Crop Science 010606 plant biology & botany Mesophile Biogas production |
| Zdroj: | Industrial Crops and Products. 133:193-202 |
| ISSN: | 0926-6690 |
| DOI: | 10.1016/j.indcrop.2019.03.005 |
| Popis: | Methane production from solid-state anaerobic digestion (SS-AD) of empty fruit bunches (EFB) using recycling solid-anaerobic digested (S-AD) sludge and liquid-anaerobic digested (L-AD) sludge as inoculum was investigated under thermophilic (55 °C) and mesophilic conditions (40 °C). The methane production rate of L-AD sludge (2.98–3.27 L-CH4 L−1 reactor d −1) was 1–2 times higher than recycling S-AD sludge (1.36 L-CH4 L−1 reactor d −1) as inoculum. Methane production of L-AD and S-AD sludge inoculum was 53.5–54.1 and 31.2–39.0 m3 CH4 tonne-1 EFB, respectively. The SS-AD of EFB with L-AD and S-AD sludge under thermophilic condition had specific methane activity of 34–96 times higher than the mesophilic condition. Clostridium sp., Methanosaeta sp., and Methanoculleus sp. were responsible for the SS-AD of EFB with L-AD sludge inoculum. The L-AD sludge was suitable inoculum for SS-AD of EFB in terms of methane production rate, cellulose degradation efficiency, biogas production, and microbial activity. |
| Databáze: | OpenAIRE |
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