Inactivation of mercury in contaminated soils using natural zeolites

被引:40
作者
Haidouti, C [1 ]
机构
[1] Univ Agr, Lab Soils & Agr Chem, GR-11855 Athens, Greece
关键词
mercury inactivation; natural zeolites; zeoliferous rocks; soils; alfalfa; ryegrass;
D O I
10.1016/S0048-9697(97)00284-2
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The application of zeoliferous rocks, from Metaxades region (Thrace, Greece) to soils contaminated with mercury significantly reduced the concentrations of mercury in the shoots and roots of alfalfa (Medicago sativa L.) and ryegrass (Lolium perenne). Use of natural zeolites at application rates of 1%, 2% and 5% by soil weight caused reductions in mercury concentrations of up to 86.0% in shoots and 58.2% in roots, compared with controls with no added zeolites. The reductions are more pronounced in above-ground plant material than in roots of the two plant species. The use of natural zeolites, as soil additives, to reduce the uptake of mercury by plants and the restriction of the entry of mercury into the food chain, is noted. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:105 / 109
页数:5
相关论文
共 16 条
[1]  
Alloway J., 1995, HEAVY METALS SOILS, V2nd
[2]   UPTAKE AND DISTRIBUTION OF MERCURY WITHIN HIGHER-PLANTS [J].
BEAUFORD, W ;
BARBER, J ;
BARRINGER, AR .
PHYSIOLOGIA PLANTARUM, 1977, 39 (04) :261-265
[3]  
Breck D. W., 1974, Zeolite molecular sieves
[4]  
Structure, chemistry, and use
[5]  
DITRI FM, 1972, ENV MERCURY PROBLEM, P63
[6]  
DYER A, 1988, ZEOLITE MOL SIEVES
[7]  
Gottardi G., 1985, NATURAL ZEOLITES
[8]   INACTIVATION OF CADMIUM IN CONTAMINATED SOILS USING SYNTHETIC ZEOLITES [J].
GWOREK, B .
ENVIRONMENTAL POLLUTION, 1992, 75 (03) :269-271
[9]   AQUA REGIA FOR QUANTITATIVE RECOVERY OF MERCURIC SULFIDE FROM SEDIMENTS [J].
JACOBS, LW ;
KEENEY, DR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1974, 8 (03) :267-268
[10]  
Kabata-Pendias A., 1992, TRACE ELEMENTS SOILS