BIOGEOCHEMISTRY OF METAL-CONTAINING IN LANDFILL WASTESFROM A ZINC METALLURGICAL PLANT IN INGA, RIO DE JANEIRO, BRAZIL

摘要

In the present work, the authors investigated the sorption behaviour of the heavy metal cadmium ion, and correlate the distribution of this serious pollutant (Cd~(2+)) in the landfill, which has been accumulated in the neighbourhood of the aforementioned plant during its more than 20 years of operation up to its discontinuation, in 1999. A chemical study of the landfill disposal provided an interpretation of and its relation to particle size of the soil components, its bio-sorption by local vegetation, the desorption process by acid rain and consequent redistribution in soil and natural water systems. On the base of this study a proposal has in view to recover the area for settlement.