Modeling of the Contact Removal of Iron From Groundwater

Safonyk, Andrii; Martynov, Serhii; Kynytskyi, S.

doi:10.12732/ijam.v32i1.7

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…The solution to the model problem (Eqs. ( 4) and ( 5)) was found similarly to Safonyk, Bomba and Tarhonii (2018), Safonyk, Martynov and Kynytskyi (2019), and Safonyk, Zhukovskyy and Burduk (2020). The developed numerical method and the corresponding algorithms were implemented in the Python software environment.…”

Section: Resultssupporting

confidence: 67%

“…We consider the process of liquid purification from organic contaminants using biological bacteria. According to scientific studies Safonyk, Bomba and Tarhonii, 2018;Safonyk, Martynov and Kynytskyi, 2019;Safonyk, Zhukovskyy and Burduk, 2020), the purification process includes the following stages: decomposition of organic pollutants by bacteria, growth and death of bacteria, formation of "young" bacteria by active sludge, and the transition of impurities to biologically non-oxidisable substances.…”

Section: Methodsmentioning

confidence: 99%

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Research of the process of biological wastewater treatment under conditions of uneven load of the treatment system

Safonyk,

Rogov,

Trokhymchuk

et al. 2024

Journal of Water and Land Development

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The main purpose of the article is to develop a multifactorial model for rapid assessment of the efficiency of biological wastewater treatment reactors. A mathematical model of the process of biological wastewater treatment has been developed based on: changes in the concentration of organic contaminants in the bioreactor over time, taking into account the uneven flow of wastewater to the treatment plant, the process of substrate entering the bioreactor (different amounts may enter at different times). The software implementation of the proposed algorithm for solving the corresponding model problem in Python is carried out. The results of computer experiments on the study of the efficiency of wastewater treatment in biological treatment reactors for different operating conditions of facilities are presented. In particular, such processes were considered with taking into account the unevenness of the load, because the maximum cleaning loads are in the morning and in the evening. The task was solved to simulate a real situation and show how cleaning takes place at the maximum load at a certain time of the day. The results obtained will be useful for calculations in the design of biological treatment facilities or in the reconstruction of existing bioreactors for their prospective operation under new operating conditions.

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Section: Resultssupporting

confidence: 67%

Section: Methodsmentioning

confidence: 99%

Research of the process of biological wastewater treatment under conditions of uneven load of the treatment system

Safonyk,

Rogov,

Trokhymchuk

et al. 2024

Journal of Water and Land Development

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“…The impurities magnetic deposition process, which is realized in a magnetic filter (0 ≤ x ≤ L) with a homogeneous granular filter nozzle, is carried out according to the laws, the prototype of which is a classical model of filtration [12], taking into account the inverse effect of the deposited particles on the porosity σ and coefficientα, as well as the filtration coefficient, [12].…”

Section: Numerical Calculationsmentioning

confidence: 99%

Mathematical Modeling of the Water Purification Process Taking Into Account the Inverse Effect of the Process Characteristics on the Characteristics of the Environment

Safonyk¹,

Zhukovska²,

Khrystyuk³

et al. 2022

Int. J. of Appl. Math.

Self Cite

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This paper considers and solves the issues of taking into account the inverse effect of process characteristics (liquid concentration and sediment contamination) on the environment characteristics (porosity, filtration, diffusion, mass transfer, etc.) on the example of liquid purification in magnetic and sorption filters. An algorithm for numerical-asymptotic approximation of the corresponding model problem solution is obtained, which is described by a system of non-linear singularly perturbed differential equations of the type "convection-diffusion-mass transfer". Appropriate ratios (formulas) are effective for optimizing the water treatment process and increasing the treatment system productivity as a whole (allow to determine the filter protective time, the filter size, etc.) in cases of convective predominance and sorption components of the corresponding process over diffusion and desorption which occurs in the vast majority of filter systems. On this basis, a corresponding computer experiment was conducted, the results of which show the proposed model advantages in comparison with classical.

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“…The solution of the corresponding model problem with the use of the asymptotic approximation [3,4,6] of the solution of the boundary value problem is found, and the results of calculations of the distribution of the concentration of iron and water temperature in the electrocoagulator and the output of the coagulator depending on the current strength are given.…”

Section: The Main Materials Of the Articlementioning

confidence: 99%

Modelling of the process of sewage treatment by electrocoagulation method in the temperature conditions

Hrytsiuk¹,

Safonyk²,

Lakus³

et al. 2019

MCIT

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The paper suggests an approach to modelling the electrocoagulation process taking into account the ratio between the values of the parameters which characterize the domination of convective and mass-exchange components of the process over diffusion. Computer simulation of the distribution of iron concentration inside the electrocoagulator that allows predicting various hydrodynamic phenomena such as internal recirculation that affects the formation of a coagulant was conducted

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Modeling of the Contact Removal of Iron From Groundwater

Cited by 7 publications

References 12 publications

Research of the process of biological wastewater treatment under conditions of uneven load of the treatment system

Research of the process of biological wastewater treatment under conditions of uneven load of the treatment system

Mathematical Modeling of the Water Purification Process Taking Into Account the Inverse Effect of the Process Characteristics on the Characteristics of the Environment

Modelling of the process of sewage treatment by electrocoagulation method in the temperature conditions

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