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BIODEGRADABLE MATERIAL PLA AND ITS APPLICATION IN PRACTICE

Romana Topiarzova

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s21.109View metrics

Abstract

The paper deals with the issue of separating biodegradable PLA (polylactic acid) bottles from conventionally used packaging materials such as PET (polyethylene terephthalate). The separation of these materials is especially important because each of the plastics has a different cycle at the end of its secondary use. Recycling PET bottles the quality of the granulate may be degraded due to the occurrence of PLA material, while the occurrence of PET is undesirable during composting the biodegradable plastics PLA as it cannot be biologically decomposed. An option to separa te the materials is the use of flotation process. The major focus of research was to achieve maximum separation efficiency of PET from PLA, which is given by the co rrect implementation of the optimization process: an appropriate choice of flotation reagents and frothers, and adjustment of the flotation parameters which influence the separation of the above mentioned materials.

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Publication details

Title
BIODEGRADABLE MATERIAL PLA AND ITS APPLICATION IN PRACTICE
Authors
Romana Topiarzova
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
PLAbiodegradableflotation of PET and PLA bottles
References16

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