HEAVY-METAL UPTAKE BY ZEOLIFEROUS ROCKS FROM METAXADES, THRACE, GREECE - AN EXPLORATORY-STUDY

被引:25
|
作者
MISAELIDES, P [1 ]
GODELITSAS, A [1 ]
CHARISTOS, V [1 ]
IOANNOU, D [1 ]
CHARISTOS, D [1 ]
机构
[1] ARISTOTLE UNIV,DEPT MINERAL PETROL ECON GEOL,GR-54006 THESSALONIKI,GREECE
关键词
D O I
10.1007/BF02043129
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The uptake of mercury, cadmium and silver from aqueous solutions by unpretreated and NaCl-pretreated clinoptilolite-bearing volcaniclastic rocks from Metaxades (Thrace, Greece) has been studied using a batch method with radioactive tracers (Hg-197, Cd-115 and Ag-110m). The concentration of the solutions used varied between approximately 1000 and 17000 ppm. An improvement of the uptake ability was observed in the case of NaCl-pretreated material for all the investigated metals and especially for mercury at the upper part of the concentration range studied. The heavy metal uptake is attributed to different mechanisms taking place both at the rock grains and their individual mineral components.
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页码:159 / 166
页数:8
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