SORPTION PROPERTIES OF ZEOLITE IN THE HOTYNETSKY DEPOSITS AND THE PROSPECTS OF ITS USE AS AN ENTEROSORBENT
This work is aimed at investigating the sorption properties of Zeolite in the Khotynetsky deposits. A syste-matic study was conducted to examine the sorption properties of the natural Zeolite mined in the Khotynetsky deposits towards a number of toxic subtances: heavy metals (Hg, Pb, As, Cd, Zn, Ni), antibiotics (tetracycline, doxycycline, levomycetin and penicillin) and polycyclic aromatic hydrocarbons (benzo(a)pyrene). Water and food are the main sources of heavy metals in the body. Benzo(a)pyrene is known to be a highly toxic carcinogen belonging to the class of polycyclic aromatic hydrocarbons. This substance exhibits mutagenic, embryotoxic and hematotoxic effects, thus contributing to the development of malignant tumors. For all the studied toxicants, we have determined the effect of medium acidity and sorption time on the substance extraction, the sorption capacity of Zeolite and respective sorption isotherms. A relationship between the destruction of the Zeolite structure and its sorption properties is presented, taking into account the acidity of the medium. The data obtained are of practical interest and can be used for the development of recommendations concerning the application of Zeolite from the Khotynetsky deposits as an enterosorbent. Such recommendations can facilitate the development of diet optimization models in terms of the amount and combination of pharmaceutical biologically active substances.