On the ASR and ASR thermal residues characterization of full scale treatment plant
On the ASR and ASR thermal residues characterization of full scale treatment plant
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DOI：
10.1016/j.wasman.2013.11.002
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发表时间：
2014-02-01
期刊：
影响因子：
8.1
通讯作者：
Fino, D.
中科院分区：
文献类型：
--
作者：
Mancini, G.;Viotti, P.;Fino, D.
为了获得85%的回收率，可以对汽车碎纸机残渣（ASR）实施几个程序，例如先进的金属和聚合物回收，机械回收，热解，在水泥工业中直接使用ASR，和/或直接使用ASR作为二次原料。然而，由于市场上基于ASR的产品的可接受性可能较低，这些回收选项中的许多似乎是有限的。在ASR热处理后回收底灰和炉渣是一种在大多数国家（例如意大利）通常不考虑的选择，因为污染物，特别是金属的量过多。本文的目的是提供有关ASR及其全尺寸焚烧残渣的特性的信息。在两个不同的实验阶段，在一个专门为处理ASR废物而改装的全尺寸轮胎焚烧厂中进行了实验，对ASR样品和燃烧残留物进行了详细分析，并与文献数据进行了比较。根据分析结果，根据欧盟废物验收标准（WAC），燃烧过程中产生的炉渣和底灰已被归类为无害废物，因此经过进一步测试，未来可用于建筑行业。还得出结论认为，ASR底灰（EWC -欧洲废物目录-代码19 01 12）可以填埋在SNRHW（稳定的非反应性危险废物）单元中或用作道路建设的原材料，经过或不经过进一步处理以去除重金属。在锅炉或空气污染控制（APC）残留物的飞灰的情况下，已经发现，镉，铅和锌的浓度超过了监管浸出试验的限制，因此，他们的去除，或稳定的过程，将是必不可少的填埋这些残留物作为建筑材料的使用之前。(C)2013爱思唯尔有限公司保留所有权利。
In order to obtain 85% recycling, several procedures on Automotive Shredder Residue (ASR) could be implemented, such as advanced metal and polymer recovery, mechanical recycling, pyrolysis, the direct use of ASR in the cement industry, and/or the direct use of ASR as a secondary raw material. However, many of these recovery options appear to be limited, due to the possible low acceptability of ASR based products on the market. The recovery of bottom ash and slag after an ASR thermal treatment is an option that is not usually considered in most countries (e.g. Italy) due to the excessive amount of contaminants, especially metals. The purpose of this paper is to provide information on the characteristics of ASR and its full-scale incineration residues. Experiments have been carried out, in two different experimental campaigns, in a full-scale tyre incineration plant specifically modified to treat ASR waste.Detailed analysis of ASR samples and combustion residues were carried out and compared with literature data. On the basis of the analytical results, the slag and bottom ash from the combustion process have been classified as non-hazardous wastes, according to the EU waste acceptance criteria (WAC), and therefore after further tests could be used in future in the construction industry. It has also been concluded that ASR bottom ash (EWC - European Waste Catalogue - code 19 01 12) could be landfilled in SNRHW (stabilized non-reactive hazardous waste) cells or used as raw material for road construction, with or without further treatment for the removal of heavy metals. In the case of fly ash from boiler or Air Pollution Control (APC) residues, it has been found that the Cd, Pb and Zn concentrations exceeded regulatory leaching test limits therefore their removal, or a stabilization process, would be essential prior to landfilling the use of these residues as construction material. (C) 2013 Elsevier Ltd. All rights reserved.