Low biosorption of PVA coated engineered magnetic nanoparticles in granular sludge assessed by magnetic susceptibility

When engineered nanoparticles (ENP) enter into wastewater treatment plants (WWTP) their removal from the water phase is driven by the interactions with the biomass in the biological treatment step. While studies focus on the interactions with activated flocculent sludge, investigations on the detail...

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Bibliographic Details
Published in:The Science of the total environment 2015-12, Vol.537, p.43-50
Main Authors: Herrling, Maria P., Fetsch, Katharina L., Delay, Markus, Blauert, Florian, Wagner, Michael, Franzreb, Matthias, Horn, Harald, Lackner, Susanne
Format: Article
Language:English
Subjects:
Biodegradation, Environmental
Biomass
Coating
Engineered magnetic nanoparticles
Environmental Monitoring - methods
Granular biomass
Magnetic permeability
Magnetic susceptibility
Magnetite Nanoparticles - analysis
Mass balance
Nanoparticles
Polyvinyl alcohols
Sewage - chemistry
Sludge
Waste Disposal, Fluid
Waste Water
Wastewater treatment
Water Pollutants, Chemical - analysis
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Summary:When engineered nanoparticles (ENP) enter into wastewater treatment plants (WWTP) their removal from the water phase is driven by the interactions with the biomass in the biological treatment step. While studies focus on the interactions with activated flocculent sludge, investigations on the detailed distribution of ENP in other types of biomass, such as granulated sludge, are needed to assess their potential environmental pollution. This study employed engineered magnetic nanoparticles (EMNP) coated with polyvinyl alcohol (PVA) as model nanoparticles to trace their fate in granular sludge from WWT. For the first time, magnetic susceptibility was used as a simple approach for the in-situ quantification of EMNP with a high precision (error
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2015.07.161