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Kaolinite is the major clay mineral in many Thai soils and the charge characteristics of soil kaolinites have not been properly evaluated. Soil samples from sub-soil horizons of fourteen Oxisols and Ultisols from Thailand were taken for this study. Clay fractions were separated from the soils, and free iron oxides and organic matter were removed to obtain soil kaolinites. Surface charge properties...
Polluted and contaminated soils can often contain more than one heavy metal species. It is possible that the behavior of a particular metal species in a soil system will be affected by the presence of other metals. In this study we have investigated the adsorption of Cd(II), Cu(II), Pb(II), and Zn(II) onto kaolinite in single- and multi-element systems as a function of pH and concentration, in a background...
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