Dissolution characteristics of 226Ra from phosphogypsum

被引：44

作者：

Haridasan, PP ^{[1
]}

Maniyan, CG ^{[1
]}

Pillai, PMB ^{[1
]}

Khan, AH ^{[1
]}

机构：

[1] Indian Rare Earth Ltd, Hlth Phys Unit, Bhabha Atom Res Ctr, Environm Assesment Div, Udyogamandal 683501, Kerala, India

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2002年 / 62卷 / 03期

关键词：

phosphogypsum; leaching of Ra-226; fertiliser industry;

D O I：

10.1016/S0265-931X(02)00011-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The paper presents the results of the dissolution characteristics of Ra-226 from phosphogypsum, a by-product from phosphate fertilizer industries. Leachability of Ra-226 in distilled water and rainwater have been examined under different leaching conditions such as contact time, solid:liquid ratio and simulating natural conditions. The concentration of Ra-226 activity in the leachates ranged from 0.07 to 0.53 Bq l(-1). Study indicated that leaching of radium may be slow in field conditions near the phosphogypsum stock piles. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：287 / 294

页数：8

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