摘要
从长春市一个封场垃圾填埋场中系统采集了不同填埋年龄（8～12年和25～30年）和不同位置（上层和下层）的垃圾样品，并对其基本特性进行了分析。结果发现，填埋垃圾总体呈弱碱性，含水率随填埋时间的增加而减小，上层垃圾含水率低于下层垃圾；从垃圾组成、有机质和生物可降解物（BDM）来看，8～12年的填埋垃圾仍处于不稳定状态，而25—30年的垃圾基本达到稳定化，但上层和下层垃圾的降解程度无明显区别。这表明传统填埋场中垃圾稳定化至少需要几十年的时间。因此开发能够加速垃圾稳定性填埋场的生物反应器修复技术具有重要意义，填埋垃圾的特性分析则为工程设计提供了必要的基础数据。
Refuse samples of different landfill ages （aged 8-12 years and aged 25~30 years） and positions （the upper layer and the lower layer） from a closed MSW landfill site in Changehun City were collected systematically and their basic characteristics were analyzed. The results showed that the aged refuse appeared weakly alkaline generally. Moisture content （MC） of the refuse decreased over time and MC of the upper layer was lower than that of the lower layer. With regard to the composition, organic matter and biological degradable matter of the refuse, the ones aged 8~12 years were still unstable, while those aged 25-30 years were almost completely degraded, but the degradation levels of the upper layer and the lower layers had not much difference, indicating that stabilization of the refuse would take at least decades in a traditional landfill site. Therefore, it was of great significance to develop bioreaetor remediation technologies for speeding up the refuse stabilization, and researches of refuse characterization would provide necessary fundamental data for the remediation design of landfill sites.
出处
《环境保护科学》
CAS
2015年第6期72-75,共4页
Environmental Protection Science
