The ability to uptake cadmium of the following biosorbents: alginate gel, free and immobilized in alginate bacteria Kliebsiella pneumoniae was characterized. An average efficiency of cadmium removal from solution with initial cadmium concentration range from 1 to 200 mg Cd2+?dm-3 was 78,6% by alginate gel and immobilized bacteria Kliebsiella pneumoniae and 60% by free bacteria. The maximum efficiency of cadmium removal from solution with initial concentration 1 mg Cd2+? dm-3 was obtained for bacteria immobilized in alginate gel.