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Study of the structural characteristics of adsorbents from Navbahar bentonite and their use in the treatment of industrial wastewater

Ikromjon MamadolievKimyo International University in Tashkent , 156 Shota Rustaveli Street , 100121 Tashkent , UzbekistanAziza AbdikamalovaInstitute of General and Inorganic Chemistry , Academy of Sciences of the Republic of Uzbekistan , 77a Mirzo Ulugbek St. , 100170 Tashkent , UzbekistanSaodat UmarovaDepartment of Pediatrics No. 3 and Medical Genetics , Samarkand State Medical University , 140104 Samarkand , UzbekistanAbidjon TillyaevDepartment of Polymer Chemistry and Chemical Technology , Samarkand State University , 15 University Boulevard St. , 140104 Samarkand , UzbekistanXonbuvi ArzimurodovaKhamza ShaykulovDepartment of Preclinical Disciplines , Zarmed University , Samarkand Campus , 140104 Samarkand , UzbekistanShuhrat ValiyevDepartment of Plant Physiology and Microbiology , Institute of Biochemistry , Samarkand State University named after Sharof Rashidov , 140104 Samarkand , UzbekistanKahor KhalikovDepartment of Biological Chemistry of Samarkand State Medical University , 140104 Samarkand , UzbekistanMadina AripovaSamarkand State University of Veterinary Medicine , Livestock and Biotechnology , 140103 Samarkand , UzbekistanAskarali UmurzakovInstitute of Agrobiotechnology and Food Security , Samarkand State University , 140104 Samarkand , Uzbekistan

2026

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ABI

Annotatsiya

In order to determine the structure and composition of bentonite samples, X-ray phase, electron microscopic, thermal and spectral analyzes were conducted.Dioctahedral structured montmorillonite reflection d 020 = 0.446 nm confirms that its layered arrangement contains two octahedral aluminum or magnesium layers separated by a tetrahedral silicon layer.The main sorption activity of the montmorillonite mineral is 54-56 mass% in the B1 clay sample, and about 54-57 mass% in the B2 sample.B1 and B2 clay SEM analysis, nitrogen adsorption isotherms, textural properties and copper (II) and lead (II) adsorption isotherms were obtained.Sample B2 has a larger micropore volume and average size compared to sample B1.Determination of lead (Pb) ions by photometry is based on the interaction of inorganic lead compounds with sulfarsazene, which gives the solutions a yellow-orange color.The absorbance is then measured at wavelength X = 540 nm.Research of the composition and structure of primary bentonite clays of alkaline and alkaline earth nature, their textural properties and adsorption activity towards organic and inorganic adsorbates was determined.

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DOI: 10.12911/22998993/219351

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