A1 Journal article (refereed), original research

Composition of Plastic Fractions in Waste Streams: Toward More Efficient Recycling and Utilization


Open Access publication

Publication Details
Authors: Lahtela Ville, Hyvärinen Marko, Kärki Timo
Publisher: MDPI
Publication year: 2019
Language: English
Related Journal or Series Information: Polymers
Volume number: 11
Issue number: 1
ISSN: 2073-4360
JUFO-Level of this publication: 1
Permanent website address: https://www.mdpi.com/2073-4360/11/1/69
Open Access: Open Access publication

Abstract

Reuse of materials is a significant global goal that contributes to
sustainable development. Polymer-specific plastic identification from
the waste stream is examined in this study to achieve environmentally
optimistic reuse of plastic material in secondary applications. Two
diverse waste streams, 86.11 kg of construction and demolition waste
(CDW) plastic and 57.74 kg of mechanically sorted plastic, were analyzed
by using a handheld tool whose identification technology was based on
the near-infrared spectrum. The study indicates a significant effect of
human and single fraction on manual separation. The polymer composition
in the plastic waste stream varied depending on the source, but the most
common plastic grades, polypropylene (PP) and polyethylene (PE), were
represented in every waste stream. The waste stream also included
unidentified and unfavorable wastes, which indicates that identification
of the plastic fractions is needed and more studies should be done in
this field in the future.


Last updated on 2019-04-02 at 15:22