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@ARTICLE{Zhang:827983,
author = {Zhang, Miaoyue and Engelhardt, Irina and Šimůnek, Jirka
and Bradford, Scott A. and Kasel, Daniela and Berns, Anne E.
and Vereecken, Harry and Klumpp, Erwin},
title = {{C}o-transport of chlordecone and sulfadiazine in the
presence of functionalized multi-walled carbon nanotubes in
soils},
journal = {Environmental pollution},
volume = {221},
issn = {0269-7491},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2017-02005},
pages = {470 - 479},
year = {2017},
abstract = {Batch and saturated soil column experiments were conducted
to investigate sorption and mobility of two 14C-labeled
contaminants, the hydrophobic chlordecone (CLD) and the
sulfadiazine (SDZ), in the absence or presence of
functionalized multi-walled carbon nanotubes (MWCNTs). The
transport behaviors of CLD, SDZ, and MWCNTs were studied at
environmentally relevant concentrations (0.1–10 mg L−1)
and they were applied in the column studies at different
times. The breakthrough curves and retention profiles were
simulated using a numerical model that accounted for the
advective-dispersive transport of all compounds,
attachment/detachment of MWCNTs, equilibrium and kinetic
sorption of contaminants, and co-transport of contaminants
with MWCNTs. The experimental results indicated that the
presence of mobile MWCNTs facilitated remobilization of
previously deposited CLD and its co-transport into deeper
soil layers, while retained MWCNTs enhanced SDZ deposition
in the topsoil layers due to the increased adsorption
capacity of the soil. The modeling results then demonstrated
that the mobility of engineered nanoparticles (ENPs) in the
environment and the high affinity and entrapment of
contaminants to ENPs were the main reasons for
ENP-facilitated contaminant transport. On the other hand,
immobile MWCNTs had a less significant impact on the
contaminant transport, even though they were still able to
enhance the adsorption capacity of the soil.},
cin = {IBG-3},
ddc = {333.7},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000392767900050},
doi = {10.1016/j.envpol.2016.12.018},
url = {https://juser.fz-juelich.de/record/827983},
}