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首页> 外文期刊>Journal of Solid Waste Technology and Management >RECOVERY AND RECYCLING OF POLYMERS FROM SHREDDER RESIDUE
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RECOVERY AND RECYCLING OF POLYMERS FROM SHREDDER RESIDUE

机译：残渣中聚合物的回收和再循环

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摘要

Metals recovery from end-of-life automobiles, home appliances and other metals containing scrap involves shredding these items and then recovering the metals from the shredded material. The remaining non-metallic fraction, commonly called shredder residue is presently land-filled. Over four and a half million metric tonnes of shredder residue is generated in the United States annually and essentially all of it is landfilled. About 15 million tonnes are generated worldwide. Shredder residue contains, among other materials, polymers that could be recovered and recycled. Argonne National Laboratory is developing technology for producing revenue streams, such as plastics, from shredder residue. This paper describes a process developed by Argonne National Laboratory for the separation and recovery of plastics from shredder residue. The process consists of two parts. First, the plastics are mechanically separated from the shredder residue as a mixed polymer concentrate and then the individual plastics are separated from the polymer concentrate via a froth flotation process. The process has been demonstrated in a mechanical separation pilot plant that has a design capacity of 1.8 tonnes/hour followed by a froth flotation pilot plant that has a capacity of 500 kg/hour. Preliminary process economic analyses indicate that the process is potentially economical.
机译：从报废汽车，家用电器和其他包含废金属的金属中回收金属包括切碎这些物品，然后从切碎的材料中回收金属。剩余的非金属部分，通常称为切碎机残留物，目前被填埋。在美国，每年产生超过四百五十万公吨的切碎机残渣，并且基本上全部被填埋。全球生产约1500万吨。除其他材料外，切碎残渣还包含可以回收和再循环的聚合物。阿贡国家实验室（Argonne National Laboratory）正在开发技术，以利用切碎机残余物产生收入流，例如塑料。本文介绍了由阿贡国家实验室（Argonne National Laboratory）开发的一种用于从粉碎残渣中分离和回收塑料的方法。该过程包括两个部分。首先，将塑料作为混合的聚合物浓缩物与切碎机残留物进行机械分离，然后通过泡沫浮选法将各种塑料与聚合物浓缩物分离。机械分离试验工厂的设计能力为1.8吨/小时，随后是浮选试验工厂的泡沫浮选试验设备为500千克/小时，证明了该工艺。初步过程经济分析表明该过程具有潜在的经济性。

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