Biogas performance from co-digestion of Taihu algae and kitchen wastes
| Autor: | Wen-Quan Ruan, Ming-Xing Zhao |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Waste management
biology Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Substrate (chemistry) Pulp and paper industry biology.organism_classification Enzyme assay Fuel Technology Nutrient Nuclear Energy and Engineering Algae Biogas Biofuel Aquatic plant biology.protein Fermentation |
| Zdroj: | Energy Conversion and Management. 75:21-24 |
| ISSN: | 0196-8904 |
| Popis: | Co-digestion of Taihu algae with high carbon content substrate can balance the nutrients in the fermentation process. In this study, optimal mixing ratio for co-digestion of Taihu algae and kitchen wastes were investigated in order to improve biogas production potential. The results indicated that the biogas yield reached 388.6 mL/gTS at C/N15:1 group, which was 1.29 and 1.18 times of algae and kitchen wastes only. The maximum concentration of VFA reached 4239 mg/L on 8th day in kitchen wastes group, which was 1.21 times of algae group. Neutral protease enzyme activity in algae group reached maximum of 904.2 μg/(gTS h), while dehydrogenase enzyme at C/N 15:1 group reached maximum of 3402.2 μgTF/(gTS h). The feasibility of adjusting the C/N with co-digestion of Taihu algae and kitchen wastes to increase biogas production was demonstrated. Remarkably, the C/N of 15:1 was found to be the most appropriate ratio. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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