摘要
基于自然通风和准好氧填埋的基本理论,提出了几种强化准好氧填埋中自然通风效果的途径。实验结果表明,应用了吸风罩和风帽的改良型准好氧填埋可将填埋龄为2 a的垃圾生物降解度(BDM)在200 d左右的时间里由填埋初期的15.27%降到4.42%,衰减率为71.05%,大大缩短了垃圾降解的时间,加快了填埋场的稳定化进程。此外还发现,风速对改良型准好氧填埋方法的进风量影响显著,风速越大,甲烷的排放浓度降低幅度越大。
Several methods to improve natural ventilation effects in semi-aerobic landfill were studied based on basic theory of natural ventilation and semi-aerobic landfill. The results showed that the biodegradability of material of two-year refuse in the improved semi-aerobic landfill with wind capture and cowl was reduced from 15.27% to 4.42% with a reduction of 71.05%. Therefore, the stabilization of the landfill was quickened. Also, it was found that wind speed remarkably influenced the wind flow entering the settings. The reduction of methane was more with the increasing of the wind speed.
出处
《有色冶金设计与研究》
2009年第6期91-94,共4页
Nonferrous Metals Engineering & Research
基金
国家863计划资助项目(NO:2007AA06Z349)
关键词
准好氧填埋
自然通风
风帽
吸风罩
semi-aerobic landfill
natural ventilation
cowl
wind capture
