Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Biofouling, metal sorption and aggregation are related to sinking of microplastics in a stratified reservoir
Leiser, R.; Wu, G.-M.; Neu, T.R.; Wendt-Potthoff, K. (2020). Biofouling, metal sorption and aggregation are related to sinking of microplastics in a stratified reservoir. Wat. Res. 176: 115748. https://dx.doi.org/10.1016/j.watres.2020.115748
In: Water Research. Elsevier: Oxford; New York. ISSN 0043-1354; e-ISSN 1879-2448, meer
|  |
| Author keywords |
Microplastics, Reservoirs, Biofouling, Aggregation, Microscopy, Sinking |
| Auteurs | | Top |
- Leiser, R.
- Wu, G.-M.
- Neu, T.R.
- Wendt-Potthoff, K.
|
|
|
| Abstract |
Microplastic particles entering aquatic systems are rapidly colonized by microbial biofilms. The presence of microbial biomass may cause sinking of particles and as a consequence prevent their transport to the oceans. We studied microbial colonization of different polymer particles exposed in the epi-, meta- and hypolimnion of a freshwater reservoir during late summer for 47 days. Parameters measured included biofilm formation, metal sorption and sinking velocities. Microbial biofilms contained bacteria, cyanobacteria and algae as well as inorganic particles such as iron oxides. Regardless of biofilm thickness and biovolumes of different biofilm constituents, single polyethylene (PE) particles stayed buoyant, whereas the sinking velocity of single polystyrene (PS) and polyethylene terephthalate (PET) particles did not change significantly compared to initial values. During exposition, a mixing event occurred, by which anoxic, iron-rich water from the hypolimnion was mixed with water from upper layers. This induced aggregation and sinking of hypolimnetic PE particles together with organic matter, cyanobacteria colonies and iron minerals. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
