Cadmium removal from aqueous phase using some vegetables derived low-cost biosorbents

Abstract

Abstract: The objective of present study was to identify the potential cadmium (Cd) detoxifying low-
cost bio-sorbent by assessing Cd uptaking efficiency. Eight low-cost biosorbents - tap root
of Daucus carota and Beta vulgaris, leaves of Hygrophila spinosa, Ipomea aquatica,
Trigonella foenum-graecum and Spinacia oleracea and fruit of Cucumis sativus and
Musa paradisiaca were collected and employed in sorption study to evaluate their
comparative Cd removal efficiencies. The Cd removal efficiency varied from 61.32 to
96.33% and results revealed that the highest efficiency was observed in Daucus carota and
lowest in Beta vulgaris. The tap root of Daucus carota
could be recommended as a well efficient low-cost and easily accessible biosorbent in removal of Cd from contaminated
water without posing any negative hazardous impacts in environmental.