To the question of mobility of particles and molecules in porous media

Here presented brief review of conservation equations when filtering liquids in porous substance: the conservation of momentum, energy and mass. Are the laws of filtration Darcy, Forchheimer and Brinkman. Given the standard boundary conditions for solving problems of filtration. Expressions for the calculation of the mobility of the particles, molecules and ions at different filtration processes in a general porous medium during filtration, satisfying the Darcy's law, are proposed. We also consider the number of applied questions related to this subject: the current magnitude in the pore medium, stationary temperature field in a circular capillary, containing a porous medium, the formula for determining the hydrodynamic radius of the molecule (radius, Stokes-Einstein) is given. Considered other supporting issues. The results can be extended to other laws of the filtering, differ from Darcy's law The obtained results enable to improve the synthesis of separation schemes, in which porous fillers are used.