The invention relates to a strain of Arthrobacter sp. CBS 208.96 capable of selectively effecting the opening of the C-S bond of sulfurated organic molecules present in carbonaceous materials and its use in a process for the selective removal of organic sulfur from fossil fuels contained
Process for the biological treatment of mud and oily residues obtained from he processing or extraction of crude oil. This process can be applied to mud alone, its mixtures and to suitable combinations of mud and oily emulsions.