A simple technology for arsenic removal from drinking water using hydrotalcite

被引：99

作者：

Gillman, G. P. ^{[1
]}

机构：

[1] CSIRO Land & Water, Aitkenvale, Qld 4814, Australia

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2006年 / 366卷 / 2-3期

关键词：

arsenic removal; drinking water; hydrotalcite; phosphate fertilizer;

D O I：

10.1016/j.scitotenv.2006.01.036

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The use of a synthetically prepared clay material, hydrotalcite (HT), for the removal of arsenite (As(Ill)) and arsenate (As(V)) from drinking water is described. Percolation through HT of water containing 500-1000 mu g/L As (levels often found in As-contaminated well water) produced leachate with As levels well below 10 mu g/L. The technology could be coupled to that used in less-developed regions for removing organisms from drinking water, viz. leaching through porous pots and filter candles. The 'spent' HT is easily converted into valuable phosphatic fertilizer that would have an insignificant effect on soil arsenic levels, thereby reducing the overall cost of manufacture and distribution. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：926 / 931

页数：6