Effect of C/N ratio and salinity on power generation in compost microbial fuel cells
| Autor: | Vijaya Raghavan, Jauharah Md Khudzari, Boris Tartakovsky |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
anaerobic digestion
Salinity Microbial fuel cell Bioelectric Energy Sources Nitrogen 02 engineering and technology 010501 environmental sciences Bacterial growth engineering.material biodegradation 7. Clean energy 01 natural sciences chemistry.chemical_compound Soil Organic matter Anaerobiosis Waste Management and Disposal 0105 earth and related environmental sciences compost microbial fuel cell chemistry.chemical_classification Compost Environmental engineering Electric Conductivity Biodegradation Carbon Dioxide 021001 nanoscience & nanotechnology 6. Clean water Carbon Horticulture Biodegradation Environmental chemistry Biofuel Biofuels Carbon dioxide composting engineering 0210 nano-technology Methane |
| Zdroj: | Waste management (New York, N.Y.). 48 |
| ISSN: | 1879-2456 |
| Popis: | In this work, compost Microbial Fuel Cells (cMFCs) were used to generate electricity from a mix of fruit and vegetable wastes, and soil with different C/N ratios and salinities. Experiments were carried out in 500 mL cMFCs equipped with carbon felt anodes and manganese dioxide cathodes. The cMFCs were loaded with fresh compost and operated at 20–23 °C for up to 97 days. The low C/N ratio (C/N 24) had a greater power production with a maximum power density of 5.29 mW/m2 (71.43 mW/m3), indicating a more favorable condition for microbial growth. High-saline cMFCs produced lower power, suggesting that their level of salinity (10 g/L of NaCl) inhibited electricigenic microorganisms. The closed-circuit cMFC showed an improved degradation of organic matter by 6% to 8% compared to the control MFC operated in an open circuit mode (no external resistor attached). |
| Databáze: | OpenAIRE |
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