The effects of aeration rate on generated compost quality, using aerated static pile method
| Autor: | Hassan Hoveidi, Touraj Nasrabadi, M Rasapoor, M. Kamali |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Municipal solid waste
Time Factors Chemistry Compost Potassium Phosphorus Environmental engineering Temperature chemistry.chemical_element engineering.material Nitrogen Refuse Disposal Oxygen chemistry.chemical_compound Soil Animal science Nitrate engineering Aeration rate Aeration Waste Management and Disposal |
| Zdroj: | Waste management (New York, N.Y.). 29(2) |
| ISSN: | 0956-053X |
| Popis: | To determine the most appropriate composting process in an active municipal solid waste system, an experiment was carried out using a nested design method with three aeration rates. During each aeration rate, parameters such as temperature, pH, EC, carbon-to-nitrogen ratio, NO(3)-N, nitrogen, potassium and phosphorous were measured and the efficiency of different composting processes was evaluated. The result of this study showed that the lower and medium aeration rates had a significant impact on nitrogen, carbon-to-nitrogen ratio and temperature profile, while higher aeration rates led to higher EC values. Furthermore, the thermophilic phase lasted 13, 9 and 4 weeks for the aeration rates of 0.4, 0.6 and 0.9 L min(-1)kg(-1), respectively. Accordingly, it was concluded that starting at a rate of 0.6 L min(-1)kg(-1) during first 2 months (about 9 weeks) of the process and continuing at a rate of 0.4 L min(-1)kg(-1)until the end of composting process would result in lower energy consumption. |
| Databáze: | OpenAIRE |
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