Cadmium accumulation by immobilized cells of aCitrobacterSP.

Abstract

Immobilized cells of a Citrobacter strain scavenge Cd with very high efficiency at a wide range of metal concentrations. Immobilized cell columns tolerate very high Cd loads with little loss in activity. The loaded metal is readily recovered from the columns, and the unloaded columns retain 84.5% of their initial activity when challenged with a fresh Cd flow. [This system may be feasible for removing Cd from liquid industrial wastes.].