Colloid-facilitated radionuclide transport in fractured porous rock /
advection in a single planar fracture of infinite extent is
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | advection in a single planar fracture of infinite extent is are obtained and the effect of fracture width is larger. are represented by local equilibrium. In the three-phase carrier were found to be the most important factors. colloid-facilitated radionuclide transport through water- colloids and solid matrix and between colloid and contaminant colloids are included. The effect of colloidal particle size contaminant with a carrier. In the three phase model, much coupled with diffusion in the rock matrix perpendicular to developed to describe the transport and fate of the difference scheme. A significant sensitivity to model distribution coefficients between a contaminant and the for the model were obtained using a fully implicit finite fracture surface and sorption into mobile and immobile groundwater act as carriers, adsorbing radionuclides on their i.e., retardation coefficient, hydrodynamic dispersion include the equilibrium distribution coefficient of large surface area and moving faster than the average water may enhance the transport of radionuclides in groundwater by Numerical methods have been applied for the prediction of parameters was discovered, and in particular, the equilibrium radionuclides in the fracture. Sorption onto rock matrix, reducing retardation effects. The colloids existing in the saturated fractured porous rock. The presence of colloids sizes, these effects become ever larger. Numerical solutions smaller retardation and hydrodynamic dispersion coefficients stationary solid phase. In the basic model, one-dimensional system, the coefficient, and fracture width are modified to the fracture. In this study, a full-equilibrium model was three phases, i. e., an aqueous phase, a carrier phase, and a velocity. With colloids present, the system consists of was also considered. Mass partition mechanisms between the With the additional consideration of colloidal particle |
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| Item Description: | "Major subject: Health Physics". Vita. |
| Physical Description: | xiv, 64 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |