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The size and shape of colloids released from a natural bentonite into a low-mineralized groundwater are investigated using various colloid characterization methods. For …
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Colloidal particle size distribution and zeta potential has been determined applying the dynamic light scattering (DLS) method. Colloid concentration determination: −A standard series made …
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A method used to solve the problems of excessive lees caused by fining wine with bentonite is to ferment in contact with bentonite (Ratnayake et al., 2019). Fermentation in …
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The main component of the bentonite colloids is montmorillonite, and quartz colloids is also observed. The previous work has also found quartz colloids or cristobalite colloids in …
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For this reason, the purpose of this research is to: (1) measure the surface charge properties of bentonite using an extended combined determination method, (2) clarify the …
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Determination of bentonite colloid diffusion coefficients in a crystalline rock U. Alonso1, T. Missana 1, A. Patelli2, V. Rigato3, J. Ravagnan3 1 CIEMAT. Madrid SPAIN; 2 Università degli Studi di …
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72 for the index parameters of bentonite, and provide guidance for optimizing pellet bentonite. 73 2. Materials and methods 74 2.1 Raw Materials 75 The iron concentrate utilized in the …
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The concentration of bentonite colloid was determined by PCS using calibration curves (counts vs. colloid concentration), as explained in Section 2.2. After each experiment with colloids, the …
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Transport of Cr(VI) at the presence of bentonite colloid was carried out in saturated porous media of 16–18 mesh and 40–60 mesh sand columns. Eects of ow rate, pH, ion strength, humic acid …
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Bentonite found in a drill core of Tsunagi Mine, Niigata, Japan was evaluated by the new method to demonstrate the substantial increase in smectite content from 40% in the …
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The results for bentonite colloid generation obtained at a laboratory scale allowed the estimation of a range of colloid generation rates under different chemical conditions. …
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Determination of initial colloid flux. ... Then, bentonite colloidal solution at 350 ppm concentration was injected into the porous medium to introduce colloidal flow. Pb(II) and Cd(II) …
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Moreover, the possible desorption from the bentonite colloids to the granite was analysed by placing small pieces of rock in a solution containing the Eu-traced bentonite colloids, and …
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characteristic mineral eomponent of bentonite is crystalline and definitely mOllt morillonite. The chemical analyses of Vyoming bentonite and heetorite are compared with those of three …
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On the basis of fitting the diameter-time curves to get aggregation rate k under different pH and ionic strength (detailed information in SI (Supplementary Information)), with …
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Bentonite slurry walls also known as diaphragm walls are used in construction, where the slurry wall is a trench filled with a thick colloidal mixture of Bentonite and water. A trench that would …
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Kahr, G. and Madsen, F.T. (1995) Determination of the cation exchange capacity and the surface area of bentonite, illite and kaolinite by methylene blue adsorption. Applied …
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The migration of bentonite colloids in a granite fracture was studied in the laboratory by dynamic column experiments under low water flow rates (4–11 mL/h).The breakthrough …
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The inorganic fraction of soils and natural sediments consist almost entirely of silica and various silicates. Clay minerals are hydrous silicates or alumino silicates and may be …
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Bentonite colloids are recognized as the predominant type of colloids in nuclear waste repositories environments. They have a unique flaky structure and good expansion …
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The zeta potential measurements for the bentonite colloid showed that the bentonite colloids were stable at lower ionic strengths of 0.01 and 0.001M NaClO4 but unstable at a higher ionic …
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Journal of Colloid and Interface Science. Volume 349, Issue 1, 1 September 2010, ... At 105 °C Ca 2+ and Na + bentonite are known to possess a range of d values ... Beyond the …
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In this work, the aggregation, retention, and release of bentonite colloid in saturated porous sand media were investigated by kinetic aggregation and column experiments, the …
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Preparation of suspensions. Eu(III) stock solution was prepared from Eu 2 O 3 (purity, 99.99%), all Eu(III) solutions used in our transport experiments were diluted with …
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The coagulation kinetics of natural bentonite colloids was experimentally studied as a function of the ionic strength and pH, by means of time-resolved light scattering techniques. It has been …
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The bentonite in this work was sourced from Gaomiaozi region (Inner Mongolia, China), and converted into Na-GMZ bentonite. The purification and conversion procedures for …
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The effect of bentonite colloids on sorption of Eu(III) in crystalline rock and its minerals ... the samples were sent to Chalmers University of Technology for Kr-BET …
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In this report we specially bring out the importance of the delamination of montmorillonite particles, the card-house mode of aggregation, the sol-gel transition, and the floc formation in …
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The negatively charged surface of Mt. is due to the isomorphous substitution in tetrahedral and octahedral layers. The isomorphous substitution is typified by the substitution …
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Particles size distribution (PSD) is introduced as a tool for analysis of bentonite aggregation and swelling kinetics. Raw Ca-bentonite was purified using a combined wet sieving and sedimentation processes, followed by …
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