HYDRODYNAMICS AND ACOUSTICS

2019 ◊ Volume 1 (91) ◊ Issue 4 ◊ p. 425-433

O. Ya. Oliynyk^*, S. V. Telima^*, V. S. Kremez^*, I. A. Obertas^*

^* Institute of Hydromechanics of NAS of Ukraine, Kyiv, Ukraine

Modeling and calculations of oxygen regime when extracting iron from underground water by filtration

Gidrodin. akust. 2019, 1(4):425-433

TEXT LANGUAGE: Ukrainian

ABSTRACT

In most regions of Ukraine, the aquifers used for withdrawing underground water to provide the population with drinking water have high iron content. Therefore, the problem of reducing the iron content in water is urgent. In previous studies, they believed that the level of the solution oxygen saturation is always sufficient when treating water to reduce the concentration of dissolved iron. In practice, the effect of oxygen consumption during filter operation should be assessed. Given this, we propose an engineering method for calculating the extraction of iron compounds from groundwater by cleaning filters and when clogging the filter of wells. The corresponding formulas were derived by simplification of general mathematical models of iron removal. The results obtained using exact and approximate calculation methods were analyzed and compared. The proposed engineering technique is shown to provide a realistic assessment of the rate of iron removal from the water under conditions of dissolved oxygen deficiency.

KEY WORDS

mathematical model, iron removal, calculation methods, filtration

REFERENCES