SORPTION OF AMERICIUM ON GEOLOGIC MEDIA

被引：23

作者：

ALLARD, B

BEALL, GW

机构：

[1] Department of Nuclear Chemistry, Chalmers University of Technology, Goteborg

[2] Transuranium Research Laboratory, Oak Ridge National Laboratory, Oak Ridge

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-ENVIRONMENTAL SCIENCE AND ENGINEERING & TOXIC AND HAZARDOUS SUBSTANCE CONTROL | 1979年 / 14卷 / 06期

关键词：

Americium; Groundwater; Minerals of Igneous Rocks; pH Effects on Adsorption;

D O I：

10.1080/10934527909374895

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The sorption of americium on 34 common rock forming and accessory minerals of igneous rocks has been measured from an artificial groundwater at ambient temperature. Preliminary results are given. For most of the minerals the distribution coefficient increased sharply with pH in the narrow pH range of 3–5, and then tended to level off and decrease at pH above 8–9. For 2- 3-minerals containing anions such as F, C0, and P0, indications of chemisorption were observed. Only for the clays and at low pH can the sorption predominantly be attributed to ion exchange, described by ideal ion exchange equations as indicated from measurements in 4 M NaCl solution. © 1979, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：507 / 518

页数：12