| Description |
-
Abstract: To enhance
their aqueous suspension stability, nanoparticles are often produced in conjunction with
surfactants or other stabilizing agents, chemicals which could influence their
environmental transport. A mathematical model was developed to simulate the influence of
a simultaneously adsorbing copolymer stabilizing agent on quantum dot nanoparticle
transport and deposition in saturated ... read moreclean sands. Because of the inability of
traditional modifications of clean-bed filtration theory to simulate quantum dot (QD)
transport experiments in sand columns, a two-constituent coupled model approach was
developed to simulate transport behavior. The resulting model was successful in
capturing atypical observations from sand column experiments, including the delayed
breakthrough of QDs, as well as the unexpectedly low QD deposition near the column
inlet. This work highlights the importance of modeling the effects of stabilizing agents
when attempting to predict the environmental fate of engineered
nanomaterials.
Thesis (M.S.)--Tufts University,
2011.
Submitted to the Dept. of Civil
Engineering.
Advisor: Linda
Abriola.
Committee: Kurt Pennell, and Yusong
Li.
Keyword: Environmental
engineering.read less
|
|---|
This object is in collection
