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ENVIRONMENTAL ASSESSMENT OF THE POSSIBILITY OF USING CARBONATE WASTE AS A RECLAMATION AGENTS FOR SOIL DECOXIDATION

Ivanchenkova O. A.  (Bryansk state engineering-technological University, Bryansk)

Lukashov S. V.  (Bryansk State University named after аcad. I. G. Petrovskogo, Bryansk)

Gamazin V. P.  (Bryansk State University named after аcad. I. G. Petrovskogo, Bryansk)

Nozdracheva E. V.  (Bryansk State University named after аcad. I. G. Petrovskogo, Bryansk)

This paper presents the results of studies to substantiate the possibility of using carbonate waste from silicate production as a mineral fertilizer. It is shown that waste from the complex processing of chalk contains at least 80% (in total) of calcium and magnesium carbonates and can be used as an ameliorant for liming acidic soils. A comprehensive assessment of the impact of the ameliorant on environmental objects was performed. The qualitative and quantitative composition, toxicity to living organisms, impact on atmospheric air, soil cover, surface and groundwater were studied. It was found that the content of impurities of lead, cadmium, arsenic, mercury, copper, manganese, molybdenum and zinc in the studied ameliorant does not exceed the maximum permissible concentrations, therefore it is practically non-toxic to mammals, the hazard is not classified according to GOST 32423-2013. It is shown that the anthropogenic load when using the ameliorant will not exceed the normatively permissible values, and the content of toxic elements in the soil, water and atmospheric air will not exceed the corresponding standards of SanPiN 1.2.3685-21. The doses of application of the ameliorant for different types of soils are substantiated, measures for environmental protection when using the ameliorant are proposed.

Keywords:carbonate waste, chalk, ameliorant, limestone flour, liming, soil deoxidation, heavy metals
 

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Citation link:
Ivanchenkova O. A., Lukashov S. V., Gamazin V. P., Nozdracheva E. V. ENVIRONMENTAL ASSESSMENT OF THE POSSIBILITY OF USING CARBONATE WASTE AS A RECLAMATION AGENTS FOR SOIL DECOXIDATION // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2025. -№04. -С. 8-13 DOI 10.37882/2223-2966.2025.04.18
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