[en] In this study 23 bacterial strains were isolated, purified and investigated from samples of radioactive polluted water collected from different areas in Ramsar, soils of Hormoz Island, cooper and molybdenum concentrated and various places of copper Sarcheshmeh mines. Among the isolated strains from samples that were investigated, isolated strains from copper Sarcheshmeh mines showed their growth ability at the environment up to 1000 ppm molybdenum and presented a more adsorption ability of molybdenum in relation to other strains. In the P H adsorption study, the optimum value of P H =4 was selected. The effect of molybdenum concentrated in the adsorption process with 50 to 1000 ppm of molybdenum was investigated and results shown that the highest adsorption is up to 200 ppm with 40% of molybdenum. In dynamics experiments of purified strains from soil samples of copper Sarcheshmeh mines showed that the bio masses were saturated almost 95% within 30 minutes. The average dry weight of bacteria's were 0.1-0.7 gr per liter of environment and the adsorption capacity of bio masses varied from 50 to 304 mg molybdenum gr^-1 dry bio masses. In comparison with the adsorption of resisting in high concentration of molybdenum with primary isolated strains were definite that the primary strains of 26-90% and resisting strains of 3-77% removed the molybdenum from 200 ppm. Therefor, the primary strains presented the higher adsorption capacity from the existing molybdenum molybdenum which proved the occupation of some Molybdenum adsorption sites on the surface of resisting bacteria's cell on the adaption time. Although there is still no proper definition about the mechanism of Molybdenum adsorption, but by consideration of the optimum P H adsorption, we should state that the relative strains would mainly adsorb the kinds of polymeric anion and molybdate ions. The goal in the first stage of this research was to study the scope of molybdenum adsorption by isolated strains from soils of cooper Sarcheshmeh mines and optimization of adsorption in the direction of providing radioisotope of molybdenum, which will be used in the nuclear medicine for diagnostic