First Application of Cowl in Semi-aerobic Landfill
The cowl was first applied to semi-aerobic landfill. The refuse which had been landfilled for one year was taken to the work. Contracting with two similar simulated semi-aerobic landfills during about 200 days, it was found that cowl was helpful to degrading and stabilizing for refuse, also enhance the ventilation of the system and reduce methane emission. BDM of the semi-aerobic landfill with cowl (the improved type) fell to 4.42％ from 15.27％, while the common type (without cowl) was 8.45％. And the methane concentration of the improved type at the vent of the windpipe reduced to 4％ at last, while the common type was above 10％. Additionally, wind speed effects on methane and carbon dioxide concentration were investigated at 2m/s, 3.5m/s, 5m/s, 6.5m/s, 8m/s.The wind speed increases made the concentration of methane reduced from the initial 15％ down to below 5％.The principle and prospect of the cowl was analyzed in the end of the study.
cowl semi-aerobic methane carbon diozide wind speed
HAN Dan ZHAO You-cai
The State of Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）