Abstract

Heavy metals are among the most common pollutants affecting biological systems when ingested with drinking water and food. Heavy metal ions are capable of bioaccumulation in a human body and could cause various metabolic disorders. Here we present the results of using a unique glauconite from the Barguzinsky deposit as an adsorbent for heavy metals. The physicochemical properties of glauconite samples, including the specific surface area, specific pore volume, zeta potential, thermal and elemental analyses and scanning electron microscopy of the surface were studied for different fraction sizes. The sorption properties of the glauconite samples were studied under static conditions for extraction of iron and manganese ions from model solutions. Analysis of the content of the detected ions in solutions and filtrates was performed by the methods of stripping voltammetry. We revealed high sorption properties of glauconite for iron elimination, but comparatively lower ones in removing manganese.

摘要

当与饮用水和食物一起摄入时，重金属是影响生物系统的最常见污染物之一。重金属离子能够在人体内进行生物蓄积，并可能导致各种代谢紊乱。在这里，我们展示了使用来自 Barguzinsky 矿床的独特海绿石作为重金属吸附剂的结果。研究了海绿石样品的物理化学性质，包括比表面积、比孔体积、zeta 电位、热分析和元素分析以及不同粒度的表面扫描电子显微镜。在静态条件下研究海绿石样品的吸附特性，以从模型溶液中提取铁和锰离子。采用溶出伏安法对溶液和滤液中检测离子的含量进行分析。我们揭示了海绿石去除铁的高吸附特性，但去除锰的吸附特性相对较低。