Department of Electrıcal Electronıc and Computer Engıneerıng, University of Catania, Viale Andrea Doria 6, I 95125, Catania, Italy.
Department for Sustainability, ENEA-Italian National Agency for the New Technologies, Energy and Sustainable Economic Development-Casaccia Research Centre, Via Anguillarese 301, I 00123, Rome, Italy.
Environ Sci Pollut Res Int. 2020 Apr;27(12):13360-13369. doi: 10.1007/s11356-020-07788-3. Epub 2020 Feb 4.
With regards to European waste catalog, automotive shredder residues (ASR) can be classified both as a hazardous or non-hazardous waste according to its hazardous properties (H1-H14). It is thus important to carry out an adequate chemical-physical characterization to identify the presence and concentration of those substances able to give, to this extremely heterogeneous material, the hazardousness character of. The issue of waste characterization, to identify the proper site for appropriate waste disposal, is based, according to the relevant laws, to the use of leaching tests. The analysis of the potential effects of landfilled waste in laboratory, however, run into several difficulties in reproducing phenomena depending both on the characteristics of small, heterogeneous quantity of waste and on the local boundary conditions. These difficulties are much more significant as the waste is heterogeneous at the small scale of the laboratory. This is one of the main problems often leading to scattered results even when starting from the same waste parcel. Present research aimed to overcome the above-mentioned difficulties deriving from waste heterogeneity and was based on a lysimetric simulation. Experimentation with lysimeter has shown it effectiveness in the comparison between leachate from the lysimeter and an ASR landfill leachate, from which similar distribution of metal mass ratios, close values for both BOD and COD, as well as the absence in both the fluids of organochlorinated compounds, emerge.
关于欧洲废物目录，根据其危险特性（H1-H14），汽车碎料机残渣（ASR）既可以归类为危险废物，也可以归类为非危险废物。因此，进行充分的理化特性分析以确定能够使这种极其不均匀的材料具有危害性的物质的存在和浓度非常重要。废物特性分析是为了确定适当的废物处置场所，根据相关法律，要使用浸出试验。然而，在实验室中分析填埋废物的潜在影响时，在重现取决于废物小而不均匀的特性以及局部边界条件的现象方面存在一些困难。当废物在实验室的小尺度上具有异质性时，这些困难更加显著。这是导致即使从同一批废物开始，结果也分散的主要问题之一。本研究旨在克服废物异质性带来的上述困难，并基于淋溶模拟。淋溶试验表明，它在淋溶液与 ASR 垃圾填埋场浸出液之间的比较中非常有效，从淋溶液和浸出液中可以得到类似的金属质量比分布，BOD 和 COD 的值也非常接近，而且在两种液体中都没有有机氯化合物。
