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Role of colloidal particles for hydrogeochemistry in As-affected aquifers of the Hetao Basin, Inner Mongolia
aqueous geochemistry arsenic colloid shallow groundwater
2017/8/9
High As groundwater was found in shallow aquifers of the Hetao Basin, Inner Mongolia, which has caused serious chronic arsenism. Groundwater particles are ubiquitous in natural aquifers, and significa...
Thickness and Surface Characteristics of Colloidal 2:1 Aluminosilicates Using an Indirect Fourier Transform of Small-Angle X-ray Scattering Data
Illite Indirect Fourier Transform Montmorillonite SAXS Thickness
2011/12/5
Abstract: An indirect Fourier transformation applied to small-angle X-ray scattering data has been used to determine the thickness and surface properties of two common clay minerals. For an illite sys...
Mineral-Content and Particle-Size Effects on the Colloidal Properties of Concentrated Lateritic Suspensions
Concentrated Suspensions Heterocoagulation Interfacial Mobility Lateritic Suspensions Mineral Content of Suspensions Rheology Yield Stress
2011/12/7
Abstract: The rheological behavior of concentrated lateritic suspensions from Cuba is affected by mineral composition and particle size. Electrophoretic mobility and yield stress were considered. The ...
Water Retention by Colloidal Allophane and Imogolite with Different Charges
Allophane Imogolite Net Charge pH Pressure Potential Water Retention
2011/12/8
Abstract: Water retention curves of colloidal allophane and imogolite with different charges and different pretreatments were measured using a tension plate and a pressure plate apparatus. An irrevers...
Effect of Interaction Between Clay Particles and Fe3+ Ions on Colloidal Properties of Kaolinite Suspensions
Colloid Electron Microscopy Flocculation Iron Kaolinite Sedimentation Zeta Potential
2011/12/22
Abstract: Fine kaolinite suspensions were mixed with unaged or aged FeCl3 in this experiment. The interaction between clay particles and Fe3+ hydrolysis products was studied by transmission electron m...
Effects of Iron and Aluminium Oxides on the Colloidal and Surface Properties of Kaolin
Aluminium oxides Colloidal stability Iron oxides Kaolinite PZC
2011/12/28
The association between clay silicates, and iron and aluminium oxides has a major influence on the chemical and physical properties of soils. In this work the interaction of a kaolin substrate with ir...
The Rheological and Colloidal Properties of Bentonite Dispersions in the Presence of Organic Compounds V. Bentonite and Sodium Montmorillonite and Surfactants
Bentonite Cetylpyridinium chloride Coagulation Flow behavior Montmorillonite Sodium dodecylsulfate (SDS) Surfactants
2011/12/27
The influence of surfactants on the flow behavior of sodium montmorillonite dispersions (2% w/w) was studied for a cationic (cetylpyridinium chloride, CPCl) and an anionic surfactant (sodium dodecylsu...
Some Colloidal Properties of Beidellite: Comparison with Low and High Charge Montmorillonites
Beidellite Charge location Coagulation Poly(vinyl) alcohol Surface charge density
2011/12/30
Recent evidence of the occurrence of beidellite in many soils around the world necessitates a better understanding of the role of charge location on the colloidal behavior of this smectite as compared...
Characterization of Colloidal Solids from Athabasca Fine Tails
Fine tails Hydrophilic Colloidal solids
2011/12/29
During processing of Athabasca oil sands, the finely divided solids form an aqueous suspension, which ultimately stabilizes as a gel-like structure retaining up to 90% of the process water. This gelli...
Effects of Freezing on Colloidal Halloysite: Implications for Temperate Soils
Fragipan Idaho Loess Tephra Transmission electron microscopy X-ray diffraction
2012/1/4
The literature reports that freezing of aqueous aluminosilicate clay suspensions can produce clay aggregates that disperse with agitation. Our experiments indicate that colloidal suspensions extracted...
Aged suspensions of microspheres and two kaolinites exhibit several horizontal layers. Particle concentration is greater at the top of a layer; lower layer tops have increasing particle concentrations...