Abstract

The paper investigates the impact of complexing agents: disodium salts of ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA), acetic acid (NAc), fulvic acids (A), sodium carbonate (Na2CO3) on sorption of U(VI) with montmorillonite. We established a complex nature of the relationship between sorption values U(VI) and pH in the presence of complexing agents, which indicates the decisive role of the forms of finding uranium in water treated. By the value of an impact on the process of sorption of U(VI) with montmorillonite the investigation of the complexing agents may be arranged into the following series: EDTA > NTA > Na2CO3 > FA.

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