Abstract
A mathematical model is proposed for separating liquids which contain acrylic dispersions and returning expensive technological components dissolved within them to the production cycle. The main limiting factor is the formation of a sediment layer on the membrane surface. This process is unsteady, because the thickness of the sediment layer varies both in the time of the separation process and in the length of the membrane module. The influence of the sediment layer on the hydrodynamics and mass transfer efficiency, its productivity, and the quality of purification is determined. The calculation of the sediment layer and its influence on the separation process is performed using the microprocess method. This method is based on material and energy balances and takes into account viscosity and diffusion coefficients, which vary depending on the temperature and composition of the mixture. The dependences of the sediment thickness on time and the length of the membrane module and selectivity coefficients on the concentration of the colloidal solution are obtained to determine the effective parameters of the baromembrane installation.
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Fedosov, S.V., Osadchy, Y.P. & Markelov, A.V. Modeling of Ultrafiltration Process Taking Into Account the Formation of Sediment on Membrane Surface. Membr. Membr. Technol. 2, 169–180 (2020). https://doi.org/10.1134/S251775162003004X
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DOI: https://doi.org/10.1134/S251775162003004X