For incubation with soil, in order to sustain growth of Desulfovibrio genus Lactate sulfate media specific for the growth of Desulfovibrio genus was used for incubation. Incubation was done for 1 month. Desulfovibrio vulgaris subsp. vulgaris was used for incubation of samples. Solid-phase extraction (SPE) technique was used to estimate U (VI) concentration after incubation also.