好氧曝气–筛分减量技术在云南某非正规垃圾填埋场中的应用

Application of Aerobic Aeration and Screening Technology of Informal Landfill in Yunnan

针对云南某非正规垃圾填埋场垃圾存量大、有机质含量局部较高、地下水偏深的特性,采用好氧曝气–筛分减量的工艺,利用分区曝气–分区筛分相结合的方法,加速有机质的稳定化,达到合格物料的再利用。经过工程实践,好氧曝气的效果明显,筛分处理得到的腐殖土经过检验,可以达到园林用土的标准,骨料可以用于就地回填,轻质物可以用于焚烧处理。该项目的顺利运行,对于国内非正规垃圾填埋场的治理有较高的参考价值。

In view of the characteristics of large garbage stock, relatively high organic matter content and deep groundwater in an informal landfill site in Yunnan, the aerobic aeration and screening technology was adopted to reduce the amount of organic matter, and the combined method of district aeration and district screening was used to accelerate the stabilization of organic matter and achieve the reuse of qualified materials. Through the engineering practice, the effect of aerobic aeration is obvious, the humus soil obtained by screening treatment has been tested and can meet the standard of garden soil, aggregates can be used for in-situ backfilling, and lightweight materials can be used for incineration. The smooth operation of this project has a high reference value for the management of informal landfill in China.