Butenko E. The use of synthetic anionic clays for the protection of water basin (for example, the city of Mariupol)

1. Subject of research: The protection of water bodies against pollution by contaminated industrial effluents. Objective: Ensuring the environmental safety of water bodies by reducing the concentrations of toxic substances and developing technical solutions for wastewater treatment. Methods: 1) kinetic method with the use of photometric analysis; 2) X-ray crystallography; 3) thermal gravimetric analysis; 4) tracer titration; 5) chromatography. Scientific novelty: 1) the 'in-principle' possibility of using synthetic anionic clay materials for wastewater treatment has been examined and justified; 2) the sorption ability of anionic clay toward heavy metals in their anionic and cationic forms has been assessed; 3) the mathematical model simulating the removal of organic and inorganic contaminants has been developed; 4) the kinetic and thermodynamic parameters of sorption processes involving the use of anionic clays for various contaminants have been theoretically justified and estimated; 5) the thermal and kinetic parameters for the thermal treatment of synthetic anionic clay materials have been assessed and determined. Theoretical and practical results: 1) the issue of achieving/maintaining the treated effluent quality standards (set as Maximum Admissible Concentration (MAC) Limits) for both organic and inorganic contaminants has been addressed; 2) the full-scale wastewater treatment facility has been developed. Level of implementation: the full-scale wastewater treatment facility has been developed to treat effluents generated at the sludge storage site of the Ilyich Iron and Steel Works OJSC. Scope of application: ensuring the environmental safety of water bodies located in the vicinity of metallurgical plants, mines and chemical industries.