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Microbes have a high adsorption capacity of heavy metals.A number of bacteria and fungi can bind to heavy metal ions because of its extracellular protein,DNA and polysaccharides.This characteristic is often applied in the recovery and removal of heavy metal ions from wastewater.Present work studied the adsorption effect of lanthanum(La)by a halophilic bacterium,Halorubrum ejinoor sp(H.e.),isolated from a Saline Lake named Ejinoor in Inner Mongolia.