Experimental Testing of Water Body Aeration Airlift Technology

Kostenko, Viktor; Tavrel, Maryna; Bohomaz, Olha; Zavialova, Оlena; Kostenko, Tetiana; Myhalenko, Kostiantyn; Kostyrka, Olesia

doi:10.12912/27197050/147635

Cited by 3 publications

(5 citation statements)

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“…This means that there is an opportunity to provide biological treatment, e.g., of runoff from agricultural fields that contain fertilizers. To effectively prevent the development of anaerobes, there are good reasons to enrich the demineralized water with oxygen, e.g., with the help of aerators for shallow water bodies (Tavrel et al, 2022;Kostenko et al, 2022) The sediment and foam formed during this process contain concentrated phosphorus and nitrogen compounds that can serve as a semi-finished product for the manufacture of fertilizers.…”

Section: Resultsmentioning

confidence: 99%

Studying the Effect of Mineral Fertilizers on the Development of the Eutrophication Process in the Water Bodies

Kostenko¹,

Tavrel²,

Bohomaz³

et al. 2023

Ecol. Eng. Environ. Technol.

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The article is devoted to the disclosure of the effect on the vital activity of cyanobacteria by changes in the nutrients in the chemical composition of artificial aquatic biotopes. The research results allowed us to establish that the dissolution of complex mineral fertilizer (nitrogen, phosphorus and potassium) in the range of up to 10 g/L contributes to the active development of cyanobacteria, which is accompanied by complete binding of mineral additives and absorption of oxygen. The addition of fertilizers in the amount of more than 1 g/L contributes to a sharp increase in the growth rate of the cyanobacteria population, which provokes the conditions for the blooming of the solutions. Enrichment of the nutritive base of biotopes ensures rapid growth of biocenosis and accelerated consumption of dissolved substances. The recorded average absorption rate of phosphorus reached more than 17 g/(L•day), and nitrogen -30 g/(L•day). The formation of sediment and foam in the test vessels was associated with the depletion of nutrients and the death of hydrobionts. This phenomenon can serve as an indicator of oxygen decrease in the water. The results of the experiment confirmed the ability of cyanobacteria to transform nitrogen and phosphorus dissolved in water into bound organic forms with high intensity. This opens up the prospect of creating biological methods and means of wastewater demineralization.

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Section: Resultsmentioning

confidence: 99%

Studying the Effect of Mineral Fertilizers on the Development of the Eutrophication Process in the Water Bodies

Kostenko¹,

Tavrel²,

Bohomaz³

et al. 2023

Ecol. Eng. Environ. Technol.

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“…The use of units of the airlift type is justified. Oxygenation occurs in the column of the airlift as the air bubbles move through the water layer (Kostenko et al, 2022).…”

Section: Study Resultsmentioning

confidence: 99%

“…If we compare the dimensions with a similar model of a two-stage airlift-aerator (Chepak et al, 2019;Kostenko et al, 2022), this design has half the vertical size.…”

Section: Study Resultsmentioning

confidence: 99%

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Recirculating Airlift for Aeration of Shallow Water Bodies

Tavrel¹,

Kostenko²,

Bohomaz³

et al. 2022

Ecol. Eng. Environ. Technol.

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The article is devoted to solving the issue of ensuring the efficient operation of aeration equipment in the conditions of shallow water bodies with an average depth of only a few meters. The article offers a technical solution for reducing the size of airlift aerators and increasing their performance by creating a recirculation movement of water inside the unit. With the help of a laboratory model, it was established that the dynamics of oxygenation of water in the pool with the help of a recirculating airlift is subject to a logarithmic dependence on the size of the flow regulator. It was possible to increase the oxygen concentration in the pool by 2.6 times within three hours as part of the simulation. The rate of water oxygenation was much higher than for a conventional airlift of the same size. The offered cost-efficient aeration unit, which uses wind flow as an energy source, can be used for fish farms and other applications.

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“…While the germination percentage of samples grown on the other two substrates (1reference, degraded loamy chernozem; 2a mixture of reference chernozem and treated with earthworms, in a proportion of 50 to 50%) was only 40% [34]. This makes it possible to confirm the hypothesis of the possibility of using burnt-out mine rock not only to improve moisture capacity, but as components of nutrient additives to degraded soils [35]. The results obtained are new, since no previous research has been conducted on the use of burnt-out dump mass from coal mining enterprises as a soil former and fertilizer component.…”

Section: Figure 1 Influence Of the Amount (N %) Of Rocks Added To The...mentioning

confidence: 91%

Use of solid mining waste to improve water retention capacity of loamy soils

Kostenko,

Bohomaz,

Hlushko

et al. 2023

Min. miner. depos.

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Purpose. The research explores the possibility of increasing the fertile properties of agricultural soils of loamy type by adding burnt-out dump mass from coal enterprises. Methods. Laboratory research on parameters of penetration and retention capacity of sorbed and meniscal water for diffe-rent burnt-out rock fractions. The burnt-out rock was sampled from the mine No. 5/6 waste rock dump in the city of Myrnohrad, Donetsk Oblast, and divided into four fractions from 0.63 to 10 mm. The water penetration coefficient of the soil with the added dump mass is measured by the velocity of water seepage into the test samples. The ability of rock additives to retain film-sorbed and capillary water is assessed by comparing the weight of dry and moistened samples of crushed dump mass. Findings. The velocity parameters of water penetration into samples of loamy mixtures with burnt-out dump mass with fractions ranging from 10 to 0.63 mm in size have been determined. It has been found that an increase in the percentage of burnt-out rock in the mixture leads to an increase in the water penetration velocity from 1.2 ml/cm2·min with a rock content of 30% to 30.66 ml/cm2·min with a rock content of 70%. The highest penetration coefficients are achieved when adding rock with a small fractional composition of 0.63-3 mm, since an increase in grain size leads to a reduction in the coefficient by se-veral times. It has been determined that with an increase in the size of the rock fractions in a loamy mixture, the retention capacity of sorbed and pore water suitable for plant nutrition decreases by approximately 40%. Originality. For the first time, the parameters of penetration coefficients, as well as the accumulation of sorbed and meniscal water for mine waste in the Selidovo-Pokrovskyi district of Donbas, have been determined. Practical implications. The results obtained can be used to improve the physical properties of agricultural soils of loamy type by increasing their water retention capacity.

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Experimental Testing of Water Body Aeration Airlift Technology

Cited by 3 publications

References 0 publications

Studying the Effect of Mineral Fertilizers on the Development of the Eutrophication Process in the Water Bodies

Studying the Effect of Mineral Fertilizers on the Development of the Eutrophication Process in the Water Bodies

Recirculating Airlift for Aeration of Shallow Water Bodies

Use of solid mining waste to improve water retention capacity of loamy soils

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