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Development of Tribo-electrostatic Separation Technique for Scale-up Process of Heavy Group Plastic Tailings  

Park, Chul-Hyun (Korea Institute of Geoscience and mineral Resources)
Jeon, Ho-Seok (Korea Institute of Geoscience and mineral Resources)
Baek, Sang-Ho (Korea Institute of Geoscience and mineral Resources)
Kim, Bong-Gon (Korea Institute of Geoscience and mineral Resources)
Publication Information
Resources Recycling / v.18, no.2, 2009 , pp. 30-38 More about this Journal
Abstract
In this research, we studied the scale-up triboelectrostatic process for separation of PVC from higher gravity fraction of plastic wastes produced from wet gravity separation process. High density polyethylene (HDPE) was found to be the most effective materials for a tribo-charger in the separation of plastic tailings. In a commercial scale triboelelctrostatic separator unit, using the HDPE pipe-line charger, a grade of 99.1% with PET, PS and others and a recovery of 86% was obtained under optimum conditions at over 250 kV/m electric field, a splitter position of -8 cm from the center, and less than 40% relative humidity. The developed unit can process the plastic wastes at a 300 kg/h, and the product can be utilized as RPF or RDF of over grade 2.
Keywords
plastic wastes; tribo charging; electrostatic separation; recycling;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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