Modelling technological process of ion-exchange filtration of fluids in porous media

Ravshanov, N.; Saidov, U.

doi:10.1088/1742-6596/1015/3/032114

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…For example, block arrangement of filters of multistage water treatment plants, block-counter-current regeneration, counter-current regeneration of filters, selection and reuse of spent regeneration solutions. Mathematical modeling of ion exchange filters allows you to describe and predict their work with the possibility of correcting the reagent supply of the regeneration mode [1][2][3][4]. Earlier [5], a mathematical model of operation and regeneration of an ion exchange filter was proposed and tested on the basis of a one-parameter diffusion model of a flow-through liquid-phase chemical reactor with a continuous loading.…”

Section: Introductionmentioning

confidence: 99%

Research and results of mathematical modeling of block ion-exchange water treatment plants operating modes and regeneration

Chichirov

Филимонова

Чичирова

et al. 2022

J. Phys.: Conf. Ser.

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The problem of water treatment at thermal power plants using ion-exchange technologies is a multi-parameter task. Mathematical modeling is essential for research and optimization of ion exchange technology. The analysis of hydrodynamic processes during the operation of ion-exchange filters was carried out according to the developed mathematical model. Also, a physicochemical analysis of the composition of the water treatment plant solutions under real conditions was carried out. It is shown that in the cationite and anionite filters, the flow movement occurs mainly in a mixed hydrodynamic mode. This mode of regeneration and the filter design do not allow achieving the minimum consumption of the reagent for regeneration, the minimum volume of wastewater and the maximum output of demineralized water. The mixed mode of the anion exchange filter operation allows division of the outgoing solution flow into fractions, which can be successfully used in the TPP water cycle.

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Section: Introductionmentioning

confidence: 99%

Research and results of mathematical modeling of block ion-exchange water treatment plants operating modes and regeneration

Chichirov

Филимонова

Чичирова

et al. 2022

J. Phys.: Conf. Ser.

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“…In [3], a problem is considered related to filtration and dehydration of liquid and ionic solutions from gel particles and heavy ionic compounds. This process is implemented to prepare and purify chemical solutions, drinking water, pharmaceuticals, liquid fuels, general products, etc.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of the salt-transfer problem in soils

et al. 2021

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The article discusses the urgent problem associated with solving the problems of salt transfer in soils and is devoted to numerical modelling of the transference and diffusion of salts in soils, in which the total porosity of the soil is divided by the fraction of “through” and “dead-end” pores with the corresponding concentration of the solution. A brief review of scientific publications devoted to this problem is given. To study and predict the process of the spread of harmful substances, a mathematical model and a numerical algorithm for computer experimentation have been developed. The solution was obtained using a method based on the use of quadrature formulas in combination with the differential sweep method for a system of ordinary second-order differential equations with arbitrary linear boundary conditions. The concentrations of salts in the “through” and “dead-end” pores, respectively, were studied at various values of the filtration process. The results are shown in the graphs.

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“…A solution to the problem associated with the process of filtration and dehydration of liquid and ionic solutions from gel particles and heavy ionic compounds was considered in [3]. This process is implemented in the preparation and purification of chemical solutions, drinking water, pharmaceuticals, liquid fuels, common use products, etc.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Salt-Transfer Process in Soils

2020

IJATCSE

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Urgent problems related to the solution of salt-transfer problems in soil are considered in the paper. It is devoted to numerical modeling of salt transfer and diffusion process in soils. In modeling the total porosity of soil is divided by "through" and "dead-end" fraction of pores with corresponding solution strength. A brief review of scientific publications covering this problem is given. To study and predict the process of harmful substances spread, a mathematical model and numerical algorithm were developed to conduct a computer experiment. The solution to this problem was obtained using a method based on the use of quadrature formulas in combination with the differential sweep method for a system of ordinary differential equations of the second order with arbitrary linear boundary conditions. To test the proposed approach of numerical modeling, a specific problem was solved and the results were presented in tabular form and compared with exact solutions.

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Modelling technological process of ion-exchange filtration of fluids in porous media

Cited by 4 publications

References 3 publications

Research and results of mathematical modeling of block ion-exchange water treatment plants operating modes and regeneration

Research and results of mathematical modeling of block ion-exchange water treatment plants operating modes and regeneration

Numerical modeling of the salt-transfer problem in soils

Numerical Study of Salt-Transfer Process in Soils

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