Journal of Environmental Health Sciences (한국환경보건학회지)
- Volume 22 Issue 2
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- Pages.58-68
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- 1996
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- 1738-4087(pISSN)
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- 2233-8616(eISSN)
Effect of Aeration Rate on Composting of Mixture of Swine Feces and Newspaper
돈분과 폐지류의 혼합물 퇴비화에 있어서 공기공급량이 퇴비화 효율에 미치는 영향
Abstract
This study was performed to evaluate the effect of aeration rate on cornposting of mixture of swine feces and newspaper. This study was accomplished by operating 4 experimental cornposting reactors of bench scale for 3 weeks. The followings are the conclusions that were derived from this study. 1. As the aeration rate increased from 200 to 500 ml/min$\cdot$kg_vs, the efficiency of composting was increased. But the aeration rate more than 500 ml/min$\cdot$kg_vs did not influence effectively. 2. The range of the highest temperatures of reactors was 51.8~55$\circ$C. Those were not significantly different one another. 3. Increasing rates of ash content namely, reaction rates of composting were proportionally increased by increasing aeration rate from 200 to 1500 ml/min$\cdot$kg_vs. 4. Contents of heavy metal in the final compost were. lower than those of Korean and European standards. 5. Concentration range of T-N in the final composts was 1.7~2.18 mg/kg, and that of T-P was 1.57~7.49 mg/kg.