The rare earth elements represent an increasingly more important industrial
resource. The increased use may result in waste generation, and their impact
upon the environment quality has not been studied sufficiently. Their
interaction with soil has been studied in this paper. Freundlich adsorption
isotherm has been determined for lanthanum, erbium and gadolinium at three
different soil types (humus, clay and sand type), whereas sequential
extraction at these soil types has been applied for lanthanum and neodymium.
The interaction of certain rare earth elements with soil components has been
tested as well as the quantity in which these elements are bound to soil and
later on extracted in solutions. The objective was to determine the soil
capacity for disposal, first of all, of the electronic waste that contains
these elements and to assume their fate in the environment.
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