Removing uranium and radium from a natural water

被引：45

作者：

Baeza, A.

Fernández, M.

Herranz, M.

Legarda, F.

Miró, C.

Salas, A.

机构：

[1] Univ Extremadura, Fac Vet, Dept Fis, Caceres 10071, Spain

[2] Univ Basque Country, Dept Ingn Nucl & Mecan Fluidos, Escuela Super Ingn, Bilbao 48013, Spain

来源：

WATER AIR AND SOIL POLLUTION | 2006年 / 173卷 / 1-4期

关键词：

water; uranium; radium; coagulant characteristics; coagulation pH; decontamination; removing contaminants;

D O I：

10.1007/s11270-005-9026-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Different types of iron- or aluminium-based coagulants were used to study the influence of the key water potabilization processes of coagulation, flocculation, and decantation on the elimination of significant concentrations of uranium and radium. We first determined the physico-chemical and radiological characteristics of a natural water to use in the trials, to which we then added known activities of U-233 and Ra-226. While the efficiency of the decontamination processes was found to be independent of coagulant dose, there was a clear dependence on the pH at which the coagulation was carried out, with the optimum for the elimination of uranium being pH 6 and for radium pH 10. Uranium elimination was independent of the type of coagulant used, but the best radium elimination was with the iron-based reagents.

引用

页码：57 / 69

页数：13