Two-stage thermophilic fermentation and mesophilic methanogenic process for biohythane production from palm oil mill effluent with methanogenic effluent recirculation for pH control
| Autor: | Wantanasak Suksong, Mathavee Thipmunee, Chonticha Mamimin, Sompong O-Thong, Poonsuk Prasertsan, Kanathip Promnuan |
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| Rok vydání: | 2016 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Chemistry 020209 energy Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Pulp and paper industry Methane chemistry.chemical_compound Fuel Technology Pome Carbon dioxide 0202 electrical engineering electronic engineering information engineering Fermentation 0210 nano-technology Effluent Hydrogen production Mesophile |
| Zdroj: | International Journal of Hydrogen Energy. 41:21702-21712 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.07.095 |
| Popis: | Two-stage thermophilic fermentation and mesophilic methanogenic process with methanogenic effluent recirculation to hydrogen reactor for biohythane production from palm oil mill effluent (POME) was investigated. Maximum hydrogen (4.1 L H2/L-POME) and methane production (16.6 L CH4/L-POME) from POME in batch tests were achieved at 30% recirculation rate of methanogenic effluent. Continuous hydrogen production of without and with recirculation phase was 2.2 and 3.8 L H2/L-POME, respectively. Continuous methane production of without and with recirculation phase was 12.2 and 14 L CH4/L-POME, respectively. Both reactor effluents were effective to keep at optimal pH with 2 times increasing in hydrogen production. The hydrogen and methane yield were 135 mL H2/gVS and 414 mL CH4/gVS, respectively. Biohythane gas composition was composed 13.3% of hydrogen, 54.4% of methane and 32.2% carbon dioxide. Two-stage process with methanogenic effluent recirculation flavored Thermoanaerobacterium sp. in the hydrogen reactor and efficiently for energy recovery from POME. |
| Databáze: | OpenAIRE |
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