Imperial College London
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ProfessorMaryRyan

Central Faculty, Office of the Provost

Vice-Provost (Research and Enterprise)
 
 
 
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Contact

 

+44 (0)20 7594 6755m.p.ryan

 
 
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Location

 

B338Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gomez-Gonzalez:2022:10.1002/gch2.202100091,
author = {Gomez-Gonzalez, MA and Rehkamper, M and Han, Z and Ryan, MP and Laycock, A and Porter, AE},
doi = {10.1002/gch2.202100091},
journal = {Global Challenges},
title = {ZnO Nanomaterials and Ionic Zn Partition within Wastewater Sludge Investigated by Isotopic Labeling},
url = {http://dx.doi.org/10.1002/gch2.202100091},
volume = {6},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The increasing commercial use of engineered zinc oxide nanomaterials necessitates a thorough understanding of their behavior following their release into wastewater. Herein, the fates of zinc oxide nanoparticles (ZnO NPs) and ionic Zn in a real primary sludge collected from a municipal wastewater system are studied via stable isotope tracing at an environmentally relevant spiking concentration of 15.2 µg g−1. Due to rapid dissolution, nanoparticulate ZnO does not impart particle-specific effects, and the Zn ions from NP dissolution and ionic Zn display indistinguishable behavior as they partition equally between the solid, liquid, and ultrafiltrate phases of the sludge over a 4-h incubation period. This work provides important constraints on the behavior of engineered ZnO nanomaterials in primary sludge—the first barrier in a wastewater treatment plant—at low, realistic concentrations. As the calculated solid–liquid partition coefficients are significantly lower than those reported in prior studies that employ unreasonably high spiking concentrations, this work highlights the importance of using low, environmentally relevant doses of engineered nanomaterials in experiments to obtain accurate risk assessments.
AU  - Gomez-Gonzalez,MA
AU  - Rehkamper,M
AU  - Han,Z
AU  - Ryan,MP
AU  - Laycock,A
AU  - Porter,AE
DO  - 10.1002/gch2.202100091
PY  - 2022///
SN  - 2056-6646
TI  - ZnO Nanomaterials and Ionic Zn Partition within Wastewater Sludge Investigated by Isotopic Labeling
T2  - Global Challenges
UR  - http://dx.doi.org/10.1002/gch2.202100091
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000739197000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://onlinelibrary.wiley.com/doi/full/10.1002/gch2.202100091
UR  - http://hdl.handle.net/10044/1/93595
VL  - 6
ER  -
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