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Abstract
In Egypt, the increase in industrial activities over the past years has
contributed significantly to the deterioration of environmental conditions in
urban conglomerates and localities nationwide. As anticipated, these
industrial activities increase was accompanied by an increase in ambient
pollutants levels and generation of large amounts of hazardous waste. With
the lack of a system to regulate the handling or disposal of the generated
wastes, each industrial facility was left unchallenged to devise its own
waste management procedures. Recently, many naturally occurring
materials have been used for different decontamination purposes. The
natural clay mineral is considered as a good ion exchanger since it is easily
found and have low cost and high capacity in removing the heavy metals
and organic compounds.
The objective of this work is to study the sorption behavior of some
heavy metals present in the industrial waste solutions using some clay
minerals materials collected from different locations in Egypt.
In this concern, Five clay samples collected from Sinai, El-Saff, EI-
Payoum, Bahryia and Aswan were used for this study.
The adsorption studies were carried out in two stages. In the first stage
batch process equilibrium was carried out for single component using
synthetic solutions with initial concentrations in the range between 2.5 to
IOmg/l ofPb2+, Fe3+ .ce” and Zn2+ respectively.