Quantifying and identifying microplastics in the effluent of advanced wastewater treatment systems using Raman microspectroscopy.
Mar Pollut Bull
; 149: 110579, 2019 Dec.
Article
de En
| MEDLINE
| ID: mdl-31551196
ABSTRACT
Microplastics in wastewater treatment plant (WWTP) effluent have been identified and quantified, but few studies have examined the microplastics in advanced treatment systems. A new method for isolating, quantifying, and determining the polymer type of microplastics was developed that included chemical digestion coupled with Raman microspectroscopy to investigate microplastics in the effluent of reverse osmosis nanofiltration and activated carbon filtration systems. This method allows for the removal of organics and the quantification and identification of all microplastics present in the sample. A large number of microplastics, the majority of which were smaller than 10⯵m, were identified in the effluent of the advanced filtration systems with polyethylene the most common polymer identified. This study not only reports a new method for microplastic identification and quantification but also shows the importance of measuring the smallest fraction of microplastics, those smaller than 20⯵m, which have previously been understudied.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Analyse spectrale Raman
/
Polluants chimiques de l'eau
/
Élimination des déchets liquides
/
Microplastiques
Pays/Région comme sujet:
America do norte
Langue:
En
Journal:
Mar Pollut Bull
Année:
2019
Type de document:
Article