Results 11 to 20 of about 24,895 (154)

Deposition and transport of graphene oxide in saturated and unsaturated porous media [PDF]

open access: yes, 2013
In this work, sand and bubble column experiments were conducted to explore the deposition mechanisms of graphene oxide (GO) particles in porous media with various combinations of moisture content and ionic strength.
Gao, Bin   +6 more
core   +3 more sources

Impact of heavy metal cations on deposition and release of clay colloids in saturated porous media

open access: yesVadose Zone Journal, 2023
While the facilitated transport of heavy metals by colloids such as clay particles has been widely recognized, the influence of heavy metals on transport of the colloids has received much less attention.
Kaiyu Shi   +5 more
doaj   +1 more source

The HPx software for multicomponent reactive transport during variably-saturated flow: Recent developments and applications [PDF]

open access: yes, 2018
HPx is a multicomponent reactive transport model which uses HYDRUS as the flow and transport solver and PHREEQC-3 as the biogeochemical solver.
Jacques, Diederik   +3 more
core   +2 more sources

Colloid-Facilitated Plutonium Transport in Saturated Alluvium [PDF]

open access: yes, 2004
Natural groundwater colloids have been recognized as possible agents for enhancing the subsurface transport of strongly-sorbing radionuclides. To evaluate this mechanism, packed-bed column experiments were conducted comparing the simultaneous transport of dissolved plutonium (Pu), Pu sorbed onto natural colloids, 190-nm and 500-nm diameter fluorescent ...
Abdel-Fattah, A.   +3 more
openaire   +2 more sources

Fat crystals : a tool to inhibit molecular transport in W/O/W double emulsions [PDF]

open access: yes, 2019
Water-in-oil-in-water (W/O/W) double emulsions are a promising technology for encapsulation applications of water soluble compounds with respect to functional food systems.
Bahtz   +50 more
core   +1 more source

Dispersible Colloid Facilitated Release of Organic Carbon From Two Contrasting Riparian Sediments

open access: yesFrontiers in Water, 2020
In aqueous systems, including groundwater, nano-colloids (1–100 nm diameter) and small colloids (<450 nm diameter) provide a vast store of surfaces to which organic carbon (OC) can sorb, precluding its normal bioavailability. Because nanomaterials are
Kenton A. Rod   +9 more
doaj   +1 more source

Colloid-Facilitated Transport of Radionuclides through the Vadose Zone [PDF]

open access: yes, 2001
This project seeks to improve the basic understanding of the role of colloids in facilitating the transport of contaminants in the vadose zone. We focus on three major thrusts: (1) thermodynamic stability and mobility of colloids formed by reactions of sediments with highly alkaline tank waste solutions, (2) colloid-contaminant interactions, and (3) in
Flury, Markus   +4 more
openaire   +16 more sources

Soil Infrastructure, Interfaces & Translocation Processes in Inner Space (“Soil-it-is”): Towards a Road Map for the Constraints and Crossroads of Soil Architecture and Biophysical Processes [PDF]

open access: yes, 2009
Soil functions and their impact on health, economy, and the environment are evident at the macro scale but determined at the micro scale, based on interactions between soil micro-architecture and the transport and transformation processes occurring in ...
de Jonge, L.W.   +2 more
core   +1 more source

Filtration and transport of heavy metals in graphene oxide enabled sand columns [PDF]

open access: yes, 2014
A fixed-bed sand column with graphene oxide (GO) layer was used to remove heavy metals (Cu(II) and Pb(II)) from an aqueous solution injected under steady flow.
Ding, Zhuhong   +3 more
core   +3 more sources

Mobility of antimony, arsenic and lead at a former mine, Glendinning, Scotland [PDF]

open access: yes, 2015
Elevated concentrations of antimony (Sb), arsenic (As) and lead (Pb) in upland organic-rich soils have resulted from past Sb mining activities at Glendinning, southern Scotland. Transfer of these elements into soil porewaters was linked to the production
Farmer, John G.   +3 more
core   +1 more source

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