Magnetic fluid equipment for sorting of secondary polyolefins from waste

Conference paper (2012)

Authors

P.C. Rem

F. Di Maio

B. Hu

G. Houzeaux

L. Baltes

M. Tierean

Department

Structural Engineering () (TU Delft)

Recycling Magnetic density separation Polyolefin Solid waste

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Published Date

25-10-2012

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Source:

Ecoimpuls 2012: International Conference of Environmental Research and Technology, Timisoara, Romania, 25-26 October 2012

Faculty

Civil Engineering and Geosciences

Department

Structural Engineering

Abstract

The paper presents the researches made on the FP7 project Magnetic Sorting and Ultrasound Sensor Technologies for Production of High Purity Secondary Polyolefins from Waste” in order to develop a magnetic fluid equipment for sorting of polypropylene (PP) and polyethylene (PE) from polymers mixed waste streams. Because both PP and PE float in water, it is difficult to separate one from the other. The paper presents the principles of inverse magnetic density separation process and the results obtained in developing of lab scale equipment for high grade separation of polyolefins from different kinds of polymers mixtures in a single step. The evolution of the equipment design is also described, based on the simulation of polyolefins dynamic flow inside magnetic fluid in the magnetic field. The researches made on lab scale equipment show fruitful results that encourage the researches for the next step. The consortium of projects is still working on scaling up this equipment for industrial application, which will be installed in Romania in 2013.

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