中文摘要：

leachate 的变化和进化过程能为垃圾堆稳定阶段作为一本参考书被使用。在这个工作，有不同年龄的 leachates 从 Laogang 被收集拒绝垃圾堆，并且与 14 个关键参数描绘了。同时，主要部件分析(PCA ) 被使用基于这 14 个参数开发合成 parameter-F，并且一个对数方程最后为垃圾堆稳定进程被模仿。leachates 将在 32 年和 22 年处理以后在市政的稳固的废物(GB 16889-1997 ) 的垃圾堆地点上为污染控制在标准遇见一级和班 II，这被预言在在中国的潮湿、温暖的南部的区域的自然变细下面分别地。垃圾堆状态的断言将根据从工作垃圾堆的 leachate 的合成参数 F 更精确、有用。

英文摘要：

Variation and evolution process of leachate can be applied as a reference for landfill stabilization phase. In this work, leachates with different ages were collected from Laogang Refuse Landfill, and characterized with 14 key parameters. Simultaneously, principal component analysis （PCA） was applied to develop a synthetic parameter-F based on these 14 parameters, and a logarithm equation was simulated for the landfill stabilization process finally. It was predicted that leachates would meet Class I and Class II in standard for pollution control on the landfill site of municipal solid waste （GB 16889-1997） after 32 years and 22 years disposal under the natural attenuation in the humid and warm southern areas of China, respectively. The predication of landfill state would be more accurate and useful according to the synthetic parameter F of leachate from a working landfill.