ABSTRACT

Bioremediation technique uses biological species such as plants and microorganisms to convert environmental contaminants to less toxic forms or to take them out from the affected sites. Plants and microorganisms automatically find their roles in bioremediation as they have to survive within toxic environmental conditions. Bioremediation is advantageous over traditional methods for cadmium (Cd) removal as it tends to detoxify Cd of the contaminated moieties. Phytoremediation is mainly used to remove Cd from contaminated soil. The high mobility of soil Cd due to its weak interaction with soil colloids makes it easily available for being taken up by plant roots. Cd along with other heavy metals interferes with the nutrient uptake and damages plant health. Bioremediation is a very safe and green technology used for Cd removal without causing any harm to the soil and aquatic habitats as well as the surrounding environment.