Next Article in Journal
The First Synthesis of Periodic and Alternating Glycopolymers by RAFT Polymerization: A Novel Synthetic Pathway for Glycosaminoglycan Mimics
Previous Article in Journal
Light-Responsive Nanocapsule-Coated Polymer Films for Antimicrobial Active Packaging
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Polymers 2019, 11(1), 69; https://doi.org/10.3390/polym11010069

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

1
LUT RE-SOURCE Research Platform, LUT University, P.O. Box 20, FI-53851 Lappeenranta, Finland
2
Fiber Composite Laboratory, LUT University, P.O. Box 20, FI-53851 Lappeenranta, Finland
*
Author to whom correspondence should be addressed.
Received: 27 November 2018 / Revised: 27 December 2018 / Accepted: 2 January 2019 / Published: 5 January 2019
  |  
PDF [626 KB, uploaded 5 January 2019]
  |  

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. View Full-Text
Keywords: circular economy; near-infrared (NIR); plastic; separation; waste circular economy; near-infrared (NIR); plastic; separation; waste
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Lahtela, V.; Hyvärinen, M.; Kärki, T. Composition of Plastic Fractions in Waste Streams: Toward More Efficient Recycling and Utilization. Polymers 2019, 11, 69.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top