Department of Civil Engineering, Celal Bayar University, Manisa, Turkey.
Waste Manag Res. 2013 Dec;31(12):1255-61. doi: 10.1177/0734242X13507967. Epub 2013 Nov 7.
Compaction is the one of the most important stages of the storage process in landfills. Well-compacted municipal solid waste (MSW) occupies less volume than an uncompacted MSW sample of the same weight and provides a safer storage area. The composition of MSW changes in between countries and even cities. For that reason, for effective compaction, the composition effect should be investigated. In this study, effects of composition, degradation and energy on the compaction behavior of artificially-prepared and natural fresh and aged MSW samples were determined. Artificial samples were prepared in representative different compositions Europe (E-1), Turkey (T-1) and the USA (U-1) to examine the effect of the composition. In addition to the synthetic MSW samples, natural MSW samples were obtained from the municipal landfill area of Manisa, Turkey. The standard Proctor test results have shown that the highest maximum dry unit weight was observed with the U-1 composition, which has the lowest organic content and the highest metal content. The degradation effect was investigated on the natural samples. The degraded MSW sample (3-4 years) has significantly higher maximum dry unit weight than the fresh natural MSW sample because of its low organic content. According to the results of this study, with respect to the composition effect, the percentage of organic waste is the most important factor on the compaction behavior of MSWs. As paper, organic and plastic contents increase in the MSW composition the γdry-max value decreases and wopt increases. The ash content does it reversely, as such that any increase in γdry-max decreases the wopt value of the MSW.
压实是垃圾填埋场储存过程中最重要的阶段之一。压实良好的城市固体废物 (MSW) 比相同重量的未压实 MSW 样品占据的体积更小，并提供更安全的储存区域。MSW 的组成在国家甚至城市之间都有所不同。因此，为了进行有效的压实，应研究组成的影响。在这项研究中，确定了组成、降解和能量对人工制备和天然新鲜和老化 MSW 样品压实行为的影响。人工样品以代表不同组成的欧洲 (E-1)、土耳其 (T-1) 和美国 (U-1) 进行制备，以检查组成的影响。除了合成 MSW 样品外，还从土耳其马尼亚市的垃圾填埋场获得了天然 MSW 样品。标准 Proctor 测试结果表明，U-1 组成的最大干单位重量最高，因为其有机含量最低，金属含量最高。对天然样品进行了降解研究。由于其有机含量低，降解的 MSW 样品（3-4 年）的最大干单位重量明显高于新鲜天然 MSW 样品。根据这项研究的结果，就组成效应而言，有机废物的百分比是 MSW 压实行为的最重要因素。随着 MSW 组成中纸、有机和塑料含量的增加，γdry-max 值降低，wopt 值增加。灰分则相反，因为 MSW 的γdry-max 值增加会降低 wopt 值。
