Upgrading mixed polyolefin waste with magnetic density separation
Polyolefin fractions are often end fractions resulting from the recycling of end-of-life consumer products. Polypropylene (PP) and polyethylene (PE) are present in such fractions as a mixture. For instance, the ratio of PP and PE in car scrap is 70:30 on average. However, the grade of the PP and PE...
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| Veröffentlicht in: | Waste management (Elmsford) 2009-05, Vol.29 (5), p.1712-1717 |
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| creator | Bakker, E.J. Rem, P.C. Fraunholcz, N. |
| description | Polyolefin fractions are often end fractions resulting from the recycling of end-of-life consumer products. Polypropylene (PP) and polyethylene (PE) are present in such fractions as a mixture. For instance, the ratio of PP and PE in car scrap is 70:30 on average. However, the grade of the PP and PE should typically be better than 97% to be reused again as a high quality product. Density separation of the different polyolefins can be a solution. A promising separation technique is the inverse magnetic density separator (IMDS). This paper discusses the potential of shredder residue, one of the possible polyolefin’s waste stream sources for the IMDS, in detail. Experiments with the separation of polyolefins with an IMDS prototype show both high grade and high recovery. The paper concludes with the economic opportunities of the IMDS in the recycling of polyolefins. |
| doi_str_mv | 10.1016/j.wasman.2008.11.006 |
| format | Article |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Applied sciences Conservation of Natural Resources - economics Conservation of Natural Resources - methods Exact sciences and technology Household Products - analysis Magnetics Other wastes and particular components of wastes Pollution Polyenes - analysis Refuse Disposal - methods Waste Products - analysis Wastes |
| title | Upgrading mixed polyolefin waste with magnetic density separation |
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