Hernández Fernández, J.; Cano, H.; Guerra, Y.; Puello Polo, E.; Ríos-Rojas, J.F.; Vivas-Reyes, R.; Oviedo, J. Identification and Quantification of Microplastics in Effluents of Wastewater Treatment Plant by Differential Scanning Calorimetry (DSC). Sustainability 2022, 14, 4920. https://doi.org/10.3390/su14094920
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Resumen en español
In this research, the presence of microplastics was detected through a differential scanning
calorimetry (DSC) analysis of three wastewater treatment plants. One of these plants applied
only a preliminary treatment stage while the others applied up to a secondary treatment stage to
evaluate their effectiveness. The results showed the presence of polyethylene (PE), polystyrene (PS),
polypropylene (PP) and polyethylene terephthalate (PET), which were classified as fragments, fibers
or granules. During the evaluation of the plants, it was determined that the preliminary treatment
did not remove more than 58% of the microplastics, while the plants applying up to a secondary
treatment with activated sludge achieved microplastic removal effectiveness between 90% and 96.9%.
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