ABSTRACT
Contamination of soil is a serious environmental issue from past decades & removal of contaminants from soil may be costly or time taking. The nature of the electrostatic potential near the surface of a particle is known as Zeta Potential. Zeta Potential is determined by measuring the velocity of the particles in a D.C. electric field. The main objective of this study is to analyze the effect of Chemical additive on the Zeta Potential of heavy metal contaminated soil. Copper used as a heavy metal and EDTA as a chemical additive in the present investigation. The sample taken from the field is basically clayey in nature. Various engineering properties of soil determined and the soil is artificially contaminated with Copper in the laboratory. Removal of Cu from artificially contaminated soil analyzed by using solution of EDTA in different concentrations and at different pH. Zeta potential measurements are performed by using Zeta Meter System 4.0. The Zeta Potential of virgin, contaminated and contaminated soil treated with different concentration of EDTA has been calculated at different pH in acidic as well as in basic range. At different pH the zeta potential of the soil changes & it affect the efficiency of removal of Copper from artificially contaminated soil.
