Abstract

This work aims to characterize 4 groups of surupíes through SEM and AFM in order to show how these 2 techniques are complementary. The group l consists of polypropylene spheres used in the downflow anaerobic fluidized bed reactor. Group 2, polypropylene, and silicone tenses that were immersed in specific broth. Group 3. metallic samples formerly used in the electrochemical process in a media of organic compounds of complex chemical structure. Finally, group 4 consists of Brazilian clay also formerly submitted to copper extraction. Both techniques have shown that they are excellent tools to observe differences in bacteria morphology with or without biofilm.