Action of the humic substances on clays sorption properties: case of caesium

被引：2
|
作者：
Dumat, C [1 ]
Fajula, F [1 ]
Staunton, S [1 ]
机构：
[1] UMRJ,CNRS 618,ENSCM,F-34296 MONTPELLIER 5,FRANCE
来源：
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE CHIMIE ASTRONOMIE | 1997年 / 325卷 / 06期
关键词：
caesium; clay; organic matter; adsorption;
D O I：
10.1016/S1251-8069(97)81155-4
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Radiocaesium sorption by clays reduces its mobility in soil, and its entry into the human food chain. Consequently Cs bioavailability is high far organic soils. Cs sorption by clay suspensions in the presence of humic substance, and the extraction of organic matter from a soil clay show that organic matter decreases the selectivity and the number of the sorption sites. This work also illustrates the limitation of simple model systems used in environmental research.
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页码：363 / 367
页数：5
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