Microorganisms Used in Bioleaching Metals Converting Waste Foundry Sands into Soil Suitable for Growing Crops

Metals can be leached either directly (physical contact between microorganisms and solid material) or
indirectly. The removal of metals from these industrial wastes brings out detoxification of the residues
and thus improves the quality of the environment. The waste foundry sand was analyzed for the
presence of toxic metals, as the plant uptakes these toxic metals through their food chain which in
turn may be harmful to the human beings.