The behavior of compression and degradation for municipal solid waste and combined settlement calculation method
The behavior of compression and degradation for municipal solid waste and combined settlement calculation method
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城市生活垃圾压缩降解行为及综合沉降计算方法
DOI：
10.1016/j.wasman.2015.09.035
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发表时间：
2016
期刊：
影响因子：
8.1
通讯作者：
Liao Zhiqiang
中科院分区：
文献类型：
--
作者：
Shi Jianyong;Qian Xuede;Liu Xiaodong;Sun Long;Liao Zhiqiang
城市固体废物（MSW）的总压缩包括初级压缩、二级压缩和分解压缩。通常很难区分压缩的三个部分。在本研究中，采用里程计测试来区分初级和次级压缩，以确定初级和次级压缩系数。此外，根据添加醋抑制降解条件下的城市固体废物压缩试验，提出了一次压缩的结束时间。发生在初级压缩级中的次级压缩量占总压缩量或总次级压缩量的百分比相对较高。降解率与时间之间的关系是通过独立测试获得的。此外，基于一维压缩方法，提出了考虑有机物降解的城市固体废物三部分压缩的组合压缩计算方法。文中还讨论了LandGEM模型的甲烷生成潜力L0与退化压缩指数之间的关系。设计了一种可模拟我国城市生活垃圾压缩全过程的专用塔式压缩装置系统。根据197天的柱压缩试验结果，对城市生活垃圾压缩新的组合计算方法进行了分析。降解压缩是中期试验阶段城市生活垃圾压缩的主要部分。
The total compression of municipal solid waste (MSW) consists of primary, secondary, and decomposition compressions. It is usually difficult to distinguish between the three parts of compressions. In this study, the odeometer test was used to distinguish between the primary and secondary compressions to determine the primary and secondary compression coefficient. In addition, the ending time of the primary compressions were proposed based on municipal solid waste compression tests in a degradation-inhibited condition by adding vinegar. The amount of the secondary compression occurring in the primary compression stage has a relatively high percentage to either the total compression or the total secondary compression. The relationship between the degradation ratio and time was obtained from the tests independently. Furthermore, a combined compression calculation method of municipal solid waste for all three parts of compressions including considering organics degradation is proposed based on a one-dimensional compression method. The relationship between the methane generation potentialL0of LandGEM model and degradation compression index was also discussed in the paper. A special column compression apparatus system, which can be used to simulate the whole compression process of municipal solid waste in China, was designed. According to the results obtained from 197-day column compression test, the new combined calculation method for municipal solid waste compression was analyzed. The degradation compression is the main part of the compression of MSW in the medium test period.