UTILIZING PLASTIC WASTE MATERIALS IN GEOTECHNICAL ENGINEERING: A SUSTAINABLE SOLUTION FOR ENVIRONMENTAL CHALLENGES

Ana-Maria  URIAN; Emese  GÁL; Liliana-Antonela  BIZO; Ovidiu  NEMEȘ; Nicoleta Maria  ILIEȘ; Andor Csongor  NAGY

doi:10.24193/subbchem.2023.3.07

UTILIZING PLASTIC WASTE MATERIALS IN GEOTECHNICAL ENGINEERING: A SUSTAINABLE SOLUTION FOR ENVIRONMENTAL CHALLENGES

Authors

Ana-Maria URIAN Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, Cluj-Napoca, Romania. Email: ana.trimbitas@dst.utcluj.ro.
Emese GÁL Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: emese.gal@ubbcluj.ro. https://orcid.org/0000-0003-4324-0787
Liliana-Antonela BIZO Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania. Email: lbizo@chem.ubbcluj.ro. https://orcid.org/0000-0002-8775-8492
Ovidiu NEMEȘ Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, Cluj-Napoca, Romania. Email: ovidiu.nemes@imadd.utcluj.ro. https://orcid.org/0000-0001-7332-9331
Nicoleta Maria ILIEȘ Faculty of Civil Engineering, Technical University of Cluj-Napoca, Cluj-Napoca, Romania. Email: nicoleta.ilies@dst.utcluj.ro. https://orcid.org/0000-0003-1141-4498
Andor Csongor NAGY Faculty of Civil Engineering, Technical University of Cluj-Napoca, Cluj-Napoca, Romania. Corresponding author: ovidiu.nemes@imadd.utcluj.ro.

DOI:

https://doi.org/10.24193/subbchem.2023.3.07

Keywords:

soil, PET waste materials, thermal stability, GC-MS analysis, additives migration

Abstract

This work evaluates the chemical impact of polyethylene terephthalate (PET) as plastic waste material used in clayey soil improvement. The purpose of this work is to study the behaviour of PET added in different percentages in soil, and how it affects the chemical composition of soil by applying rapid ageing cycles. The thermal stability of the clay-PET mixtures using the thermogravimetric method was studied, and the impact of PET quantity on pH was measured. To detect the migration of PET degradation products to the soil gas chromatography with mass spectrometry (GC-MS) was used. The GC-MS analysis results indicate the presence of DIBP, the concentration increased proportionally with the amount of PET added to the clay. The thermogravimetric analysis shows a thermal degradation of the polymeric chain starting from 200 °C.

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STUDIA UBB CHEMIA, Volume 68 (LXXVIII), No. 3, September 2023

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Published

2023-09-25

How to Cite

URIAN, A.-M. ., GÁL, E. ., BIZO, L.-A. ., NEMEȘ, O. ., ILIEȘ, N. M. ., & NAGY, A. C. . (2023). UTILIZING PLASTIC WASTE MATERIALS IN GEOTECHNICAL ENGINEERING: A SUSTAINABLE SOLUTION FOR ENVIRONMENTAL CHALLENGES. Studia Universitatis Babeș-Bolyai Chemia, 68(3), 115–127. https://doi.org/10.24193/subbchem.2023.3.07