An estimate of the detention in the process of reverse osmosis separation biological solutions biochemical industries

Retained on a membrane solute in reverse osmosis separation of biological fluids at the surface of the membrane gradually accumulates and forms a boundary layer, where its concentration is higher than in the bulk. Increased concentration of solute in the solution at the membrane surface causes a diffusive flow of solids from the membrane surface into the bulk solution. After some time in the system t is a stationary state. A convective flow of solute to the membrane surface will be balanced by the sum of the fluxes of solute through the membrane and from the membrane surface into the bulk solution, i.e. in the case of concentration polarization is formed an edge of the diffusion layer. It is established that the concentration-polarization in reverse osmosis separation of the aqueous biological fluids biochemical production is influenced by the flow rate of solvent and the mass transfer coefficient. Experimental study allowed to characterize that by using the process of reverse osmosis can effectively divided, clear, and con-taravati industrial solutions biochemical industries. Data at a rate of detention allow to evaluate the influence of concentration polarization on the efficiency of the reverse osmosis separation of industrial solutions. As a result of systematization and evaluation of experimental data and dependencies at a rate of detention found that with increasing the concentration, the rate of detention of solutes decreases. Based on the analysis and modification of the proposed equation for theoretical calculation of detention. Theoretical description of the coefficient detention accurately adequately calculated the modified equation N. V. Churaev, B. V. Deryaguin and V. M. Starov. The numerical values of the empirical coefficients, to calculate and predict the odds of arrest for a similar membrane separation processes industrial solutions. Values obtained correlation coefficients. The correlation coefficients specify that the rate of detention has a strong inverse dependence on the concentration of the dissolved substance, which confirms the influence of concentration polarization on the coefficient detention membranes.