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Registration Number

0221U106985, 0121U112841 , R & D reports

Title

Electrokinetic phenomena in natural nano / micro-fluid and dispersed systems: characterization, processing, modeling

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Head

Kovalchuk Volodymyr I., Доктор фізико-математичних наук

Registration Date

24-12-2021

Organization

F. D. Ovcharenko Institute of Biocolloidal Chemistry NAS of Ukraine

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 Research methods - theoretical modeling using approaches of physical and chemical electro-hydrodynamics; electron microscopic, X-ray phase, spectrophotometric, gravimetric, granulometric, microbiological analysis and other special research methods; computer simulation. Results obtained - An original qualitative interpretation of the effect of electrokinetic dispersion in a hydrodynamic field with a shift is proposed and numerical estimates are given. An algorithm for calculating the variance tensor for a porous medium of general form is obtained, which can be represented as a set of representative cells of general geometry. Empirically, the optimal parameters for electrokinetic studies of soils with different mineralogical and particle size distribution have been established. It is established that with the increase of soil microbial activity the value of ζ-potential increases and hydrophobicity increases. It is shown that bioremediation in the "potexperiment" mode is effective for soil restoration in case of complex pollution. An analysis of the connectivity and conductivity behavior of two-dimensional model soils in which particle packs were generated using the sequential random adsorption (RSA) model, the results of studies of the effects of limited geometry on conductivity behavior and the degree of anisotropy of model soils. The obtained results will be used in further research within the Project and presented in scientific publications

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2021-12-24