Mathematical modeling of physicochemical iron removal from groundwater at rapid filters

Poliakov, V. L.; Martynov, Serhii

doi:10.1016/j.ces.2020.116318

Cited by 5 publications

(8 citation statements)

References 23 publications

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“…The dynamics of the physicochemical groundwater iron at the inlet section of the filter medium was analyzed by analytical methods in the first article of our series (Poliakov & Martynov 2021). Firstly, the filter material is contaminated here at the highest rate and its throughput sharply decreases as a result.…”

Section: Kinetic and Capacity Coefficients Of Compartments Fe 2þ And ...mentioning

confidence: 99%

“…Our long-term study experience of iron removal from water under laboratory and industrial conditions at the operating iron removal plants in Ukraine, including our water stations of iron removal with foam polystyrene filters, allowed us to develop a mathematical model of physicochemical removal of the groundwater iron, which was outlined previously. The developed mathematical model consists of three interconnected compartments (Poliakov & Martynov 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The third compartment consists of the equations of motion (Darcy's law), the hydraulic resistance of a bed and the deposit state (Poliakov & Martynov 2021).…”

Section: Introductionmentioning

confidence: 99%

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Experimental studies of iron transformations kinetics and autocatalysis during its physicochemical removal from underground water

Martynov

Poliakov

2021

Water Supply

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The mathematical model of physicochemical iron removal from groundwater was developed. It consists of three interrelated compartments. The results of the experimental research provide information in support of the first two compartments of the mathematical model. The dependencies for the concentrations of the adsorbed ferrous iron and deposited hydroxide concentrations are obtained as a result of the exact solution of the system of the mass transfer equations for two forms of iron in relation to the inlet surface of the bed. An analysis of the experimental data of the dynamics of the deposit accumulation in a small bed sample was made, using a special application that allowed to select the values of the kinetic coefficients and other model parameters based on these dependencies. We evaluated the autocatalytic effect on the dynamics of iron ferrous and ferric forms. The verification of the mathematical model was carried out involving the experimental data obtained under laboratory and industrial conditions.

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Section: Kinetic and Capacity Coefficients Of Compartments Fe 2þ And ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental studies of iron transformations kinetics and autocatalysis during its physicochemical removal from underground water

Martynov

Poliakov

2021

Water Supply

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show abstract

“…Various technological schemes and simple calculation methods have been developed to solve the problem of iron removal from deep groundwater [ [17] , [18] , [19] ]. However, a number of its important formal peculiarities were not being considered, including nonlinear effects of mass transfer, autocatalyticity of the sorption, specific character of deposit consolidation, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the results of our own experimental data and the conceptual model [ 18 ], we have developed a mathematical model of iron removal consisting of interconnected joint clarification and hydraulic compartments [ 19 ]. The scheme for the calculation of physicochemical iron removal from groundwater is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%