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@article{1409485,
author = {Goldberg, Eli and McNew, Coy and Scheringer, Martin and Bucheli, Thomas D. and Nelson, Peter and Hungerbuhler, Konrad},
article_location = {WASHINGTON},
article_number = {5},
doi = {http://dx.doi.org/10.1021/acs.est.6b05217},
keywords = {ZINC-OXIDE NANOPARTICLES; NATURAL ORGANIC-MATTER; IONIC-STRENGTH; TITANIUM-DIOXIDE; HUMIC-ACID; HYDROXYAPATITE NANOPARTICLES; CORRELATION EQUATION; COLLOID ATTACHMENT; ZNO NANOPARTICLES; GRANULAR MEDIA},
language = {eng},
issn = {0013-936X},
journal = {ENVIRONMENTAL SCIENCE AND TECHNOLOGY},
title = {What Factors Determine the Retention Behavior of Engineered Nanomaterials in Saturated Porous Media?},
url = {https://pubs.acs.org/doi/10.1021/acs.est.6b05217},
volume = {51},
year = {2017}
}
TY - JOUR
ID - 1409485
AU - Goldberg, Eli - McNew, Coy - Scheringer, Martin - Bucheli, Thomas D. - Nelson, Peter - Hungerbuhler, Konrad
PY - 2017
TI - What Factors Determine the Retention Behavior of Engineered Nanomaterials in Saturated Porous Media?
JF - ENVIRONMENTAL SCIENCE AND TECHNOLOGY
VL - 51
IS - 5
SP - 2729-2737
EP - 2729-2737
PB - AMER CHEMICAL SOC
SN - 0013936X
KW - ZINC-OXIDE NANOPARTICLES
KW - NATURAL ORGANIC-MATTER
KW - IONIC-STRENGTH
KW - TITANIUM-DIOXIDE
KW - HUMIC-ACID
KW - HYDROXYAPATITE NANOPARTICLES
KW - CORRELATION EQUATION
KW - COLLOID ATTACHMENT
KW - ZNO NANOPARTICLES
KW - GRANULAR MEDIA
UR - https://pubs.acs.org/doi/10.1021/acs.est.6b05217
L2 - https://pubs.acs.org/doi/10.1021/acs.est.6b05217
N2 - A fundamental problem associated with the vertical transport of engineered nanomaterials (ENMs) in saturated porous media is the occurrence of nonexponential, for example, nonmonotonic or linearly increasing, retention profiles. To investigate this problem, we compiled an extensive database of ENMs transport experiments in saturated porous media. Using this database we trained a decision tree that shows the order of importance, and range of influence, of the physicochemical factors that control the retention profile shape. Our results help identify domains where current particle-transport models can be used, but also highlight, for the first time, large domains where nonexponential retention profiles dominate and new approaches are needed to understand ENM transport. Importantly, highly advective flow and high ENM influent mass can mask the influence of other physicochemical factors on the retention profile shape; notably, this occurs in 50% of the experiments investigated. Where the relationship between physicochemical factors and retention profile shape can be investigated in detail, our results agree with, and provide validation for, the current understanding of how these factors influence ENM transport.
ER -
GOLDBERG, Eli, Coy MCNEW, Martin SCHERINGER, Thomas D. BUCHELI, Peter NELSON and Konrad HUNGERBUHLER. What Factors Determine the Retention Behavior of Engineered Nanomaterials in Saturated Porous Media? \textit{ENVIRONMENTAL SCIENCE AND TECHNOLOGY}. WASHINGTON: AMER CHEMICAL SOC, 2017, vol.~51, No~5, p.~2729-2737. ISSN~0013-936X. Available from: https://dx.doi.org/10.1021/acs.est.6b05217.
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