Results 41 to 50 of about 24,895 (154)

Supported liquid membranes: instability effects [PDF]

open access: yes, 1992
The instability behavior of several supported liquid membranes (SLMs) has been studied for a system in which nitrate ions are removed from an aqueous feed phase and concentrated in a stripping phase.
Bargeman, D.   +2 more
core   +2 more sources

Mechanistic insights into the facilitating transport of americium(III) by kaolinite colloid: An experimental and modeling study

open access: yesEcotoxicology and Environmental Safety
Deep understanding and accurate prediction of the transport behavior of minor actinides is crucial for ensuring the safety of the nuclear environment. Given the severe radiotoxicity and chemical toxicity of americium, its environmental mobility poses a ...
Xinyi Shi   +11 more
doaj   +1 more source

Freezing point depression and freeze-thaw damage by nano-fuidic salt trapping [PDF]

open access: yes, 2019
A remarkable variety of organisms and wet materials are able to endure temperatures far below the freezing point of bulk water. Cryo-tolerance in biology is usually attributed to "anti-freeze" proteins, and yet massive supercooling ($< -40^\circ$C) is ...
Bazant, Martin Z.   +3 more
core   +4 more sources

Energy-related contaminants in subterranean waterbodies: The role of geocolloids on facilitated and hindered transport

open access: yesNext Sustainability
The examination of energy byproduct transport and associated contaminant dynamics in geosystems and aquatic ecosystems is important for evaluating the ramifications of energy generation and consumption.
Mustafa E.S. Akbulut, Younjin Min
doaj   +1 more source

COLLOID RELEASE FROM DIFFERENT SOIL DEPTH

open access: yesJournal of Urban and Environmental Engineering, 2013
Naturally occurring clay colloidal particles are heavily involved in sediment processes in the subsurface soil. Due to the import ance of these processes in the subsurface environment, the transport of clay colloidal particles has been studied in several
Gang Chen   +3 more
doaj  

Effect of chemical and physical heterogeneities on colloid-facilitated cesium transport

open access: yesJournal of Contaminant Hydrology, 2018
A set of column experiments was conducted to investigate the chemical and physical heterogeneity effect on colloid facilitated transport under slow pore velocity conditions. Pore velocities were kept below 100 cm d-1 for all experiments. Glass beads were packed into columns establishing four different conditions: 1) homogeneous, 2) mixed physical ...
Kenton Rod   +6 more
openaire   +3 more sources

Photoreductive Dissolution of Iron Oxides Trapped in Ice and Its Environmental Implications [PDF]

open access: yes, 2010
The availability of iron has been thought to be a main limiting factor for the productivity of phytoplankton and related with the uptake of atmospheric CO_2 and algal blooms in fresh and sea waters. In this work, the formation of bioavailable iron (Fe(II)
Choi, Wonyong   +4 more
core   +1 more source

Colloid-facilitated Pb transport in two shooting-range soils in Florida

open access: yesJournal of Hazardous Materials, 2010
Shooting range soils with elevated Pb contents are of environmental concern due to their adverse impacts on human and animals. In Florida, the problem merits special attention because of Florida's sandy soil, high rainfall, and shallow groundwater level, which tend to favor Pb migration.
College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China ( host institution )   +6 more
openaire   +3 more sources

Mechanisms of Diffusional Nucleation of Nanocrystals and Their Self-Assembly into Uniform Colloids

open access: yes, 2008
We survey our research on modeling the mechanisms of control of uniformity in growth of nanosize and colloid particles. The former are produced as nanocrystals, by burst-nucleation from solution.
Bailey   +55 more
core   +2 more sources

Continuous-feed nanocasting process for the synthesis of bismuth nanowire composites [PDF]

open access: yes, 2017
We present a novel, continuous-feed nanocasting procedure for the synthesis of bismuth nanowire structures embedded in the pores of a mesoporous silica template.
De Buysser, K.   +4 more
core   +3 more sources

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