SORPTION SUCTION OF LANTHANUM ION WITH NEW MODIFIED SORBENTS

Abstract

In this article, a new modified synthetic high-molecular organic ionite is proposed for the sorption of rare-earth metal ions from water bodies. Concentrated citric acid (C6H8O7) is used as a modifier. The article shows an increase in the volume of La3+ extraction from the concentration of the C6H8O7 modifier. During the sorption extraction experiment, the concentration of La3+ extraction increases at 90 min. heating. AB-17-8 is referred to as strongly basic anionites, which work effectively at pH 2-14. Rare earth metals (REM) are widely used in various industries: electrical engineering, catalysts, permanent magnets and phosphors.All this causes anthropogenic pollution of the environment, living organisms, so it is necessary to study potential threats. To do this, we must be able to detect small amounts of REM in the environment and water.REM in wastewater is often determined by separation and concentration methods, such as co-precipitation, ion exchange, liquid-liquid extraction, electrolysis, etc. However, these methods have disadvantages, such as the duration and complexity of the study, as well as material costs.