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Record nummer 2047307
Titel artikel Heteroaggregation and sedimentation rates for nanomaterials in natural waters
Auteur(s) Quik, J.T.K. ; Velzeboer, I. ; Wouterse, M. ; Koelmans, A.A. ; Meent, D. van de
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer 48(2014)1
Paginering 269 - 279
Online full text
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Trefwoorden (cab) sedimentatie / zwevende deeltjes / aggregatie / nanotechnologie / emissie / schatting / colloïden / waterstroming / zeewater / oppervlaktewaterkwaliteit
Rubrieken Waterkwaliteit
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Exposure modeling of engineered nanomaterials requires input parameters such as sedimentation rates and heteroaggregation rates. Here, we estimate these rates using quiescent settling experiments under environmentally relevant conditions. We investigated 4 different nanomaterials (C60, CeO2, SiO2–Ag and PVP–Ag) in 6 different water types ranging from a small stream to seawater. The apparent rates of heteroaggregation between nanomaterials and natural colloids were estimated using a novel method that separates heteroaggregation from homoaggregation using a simplified Smoluchowski-based aggregation-settling equation applied to data from unfiltered and filtered waters.
Betrokken instanties WUR, Leerstoelgroep Aquatische Ecologie en Waterkwaliteitsbeheer
Radboud Universiteit Nijmegen, afdeling Milieukunde
Rijksinstituut voor Volksgezondheid en Milieu (RIVM)
IMARES WUR
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