Four heterotrophic bacterial strains were isolated from soil and water samp
les from a chromite mine in Sukinda valley in Orissa. They were identified
as Lactobacillus acidophilus, Staphylococcus lactis, Lactobacillus sp. and
Propionibacterium acnes. Each strain was used for leaching of metals from c
hromite overburden of Sukinda. Comparatively, Lactobacillus sp. showed maxi
mum capability for metal solubilization. It leached a maximum of 5.98% of n
ickel in 35 days of contact time.