Abstract
The behavior of heavy metals in a natural aqueous system is attracting researchers because of environmental issues. Man's activities have increased the quantity and distribution of heavy metals in the atmosphere, on the land, and in rivers, lakes, and seas. The extent of this widespread contamination has caused concern about its possible effects on plants, animals and human beings. One of the first steps in any systematic study of the aquatic chemistry of a potential contaminant is an elucidation of the principal modes of transport and sinks for the contaminant. It appears that a large proportion of the metallic substances discharged into water bodies is ultimately incorporated into sediments. (Warren, L. J.,112 and others). The sediment is a complex mixture with three main components: clays, organic matter, and oxides of iron and manganese. While the role of clays and biota in affecting the transport of heavy metals is commonly recognized, the significance of Fe and Mn among the factors that are involved...
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