Results 201 to 210 of about 2,788,214 (253)

CVD-grown tunable carbon films for high-performance sodium storage.

open access: yesEnergy Environ Sci
Eren EO   +11 more
europepmc   +1 more source
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Colloid-Facilitated Transport of Lead in Natural Discrete Fractures

Environmental Pollution, 2009
Colloid-facilitated transport of lead (Pb) was explored in a natural chalk fracture with an average equivalent hydraulic aperture of 139 microm. Tracer solution was prepared by adding montmorillonite (100 mg L(-1)) and/or humic acid (HA) (10 mg L(-1)) to modified artificial rainwater containing dissolved Pb (21.4 mg Pb L(-1)), naturally precipitated ...
Noam Weisbrod, Xiang-Yu Tang
exaly   +3 more sources

Colloid‐Facilitated Transport of Metolachlor Through Intact Soil Columns

Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, 1996
This study evaluated the role of water dispersible colloids with diverse physicochemical and mineralogical characteristics in facilitating the transport of metolachlor through macropores of intact soil columns. The soil columns represented upper solum horizons of an Alfisol in the Bluegrass region of Kentucky. Three different colloid suspensions tagged
A D Karathanasis, A D Karathanasis
exaly   +2 more sources

A Travelling Wave Solution for Nonlinear Colloid Facilitated Mass Transport in Porous Media

open access: yes, 2020
Colloid facilitated solute transport through porous media is investigated. Sorption on the matrix is modelled by the linear equilibrium isotherm whereas sorption on colloidal sites is regulated by nonlinearly equilibrium vs nonequilibrium. A travelling wave-type solution is obtained to describe the evolution in both the liquid and colloidal ...
Salvatore Cuomo   +2 more
openaire   +3 more sources

Modeling Colloid-Facilitated Transport of Multi-Species Contaminants in Unsaturated Porous Media

Journal of Contaminant Hydrology, 2007
Colloid-facilitated transport has been recognized as a potentially important and overlooked contaminant transport process. In particular, it has been observed that conventional two phase sorption models are often unable to explain transport of highly sorbing compounds in the subsurface appropriately in the presence of colloids.
Timothy Ginn, Arash Massoudieh
exaly   +3 more sources

Colloid‐Facilitated Metal Transport in Peat Filters

Water Environment Research, 2010
The effect of colloids on metal retention in peat columns was studied, with the focus on colloids from two sources—organic matter leached from peat, and introduced organic and hydrous ferric oxide (HFO) colloids. A significant fraction of metals was found to be associated with peat‐produced organic colloids; however the concentrations of organic ...
Kalmykova, Y.   +5 more
openaire   +3 more sources

Colloid-facilitated contaminant transport in fractal media

Physical Review E, 2011
We investigate colloid-facilitated contaminant advection in strongly heterogeneous geological medium with fractal properties. Transport regimes and asymptotic behavior at large distances are studied for different relationships between sorption parameters and characteristics of percolation medium. Crossover times between transport regimes are determined.
Leonid A, Bolshov   +2 more
openaire   +2 more sources

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