Adsorption sequence of toxic inorganic anions on a soil

被引：9
|
作者：
Saeki, Kazutoshi [1 ]
机构：
[1] Kyushu Univ, Biotron Inst, Higashi Ku, Fukuoka 8128581, Japan
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2008年 / 81卷 / 05期
基金：
日本学术振兴会;
关键词：
anion adsorption sequence; selenite; chromate; fluoride;
D O I：
10.1007/s00128-008-9505-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The adsorption of six anions (arsenate(As(V)), chromate(Cr(VI)), fluoride(F(-I)), molybdate(Mo(VI)), selenate(Se(VI)), and selenite(Se(IV))) on an andosol and the concomitant H(+) consumptions together with the sorption were investigated to understand the behaviors of toxic inorganic anions in environment. Based on the estimated adsorption maximum by the simple Langmuir equation, the order of adsorption affinity to the andosol at a suspension pH of 5.0 was F(-I) > > phosphate(P(V)) > Se(IV) > Mo(VI) >= As(V) > > Se(VI) >= Cr(VI) >= nitrate(N(V)). The order of the concomitant H(+) consumptions together with the adsorption was F(-I) > > P(V) > Se(IV) > Mo(VI) >= As(V), while they were not observed in the adsorption of Se(VI), Cr(VI) and N(V).
引用
收藏
页码：508 / 512
页数：5
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