In the last years, increasing the population growth followed by an acceleration of the industrial process costs the quality of our ecosystem. Large waste quantities of industrial activities deposit risk concentrations of toxic materials like heavy metals. Heavy metal pollution has been distinguished as serious contaminants with worldwide risk since the industrial modern revolution. Environment depositions of these contaminants intimidate all the biological life forms for its high toxic characteristics. Chemical, physical, and mechanical strategies proved its low efficiency for its high energy needs, high costs, and even leave other secondary wastes to pass through the environment that raising another contaminant issue. Bioremediation through biological scavenging of heavy metals by microorganisms offers simple, low costs, low energy, and eco-friendly strategy for heavy metal elimination. Microorganisms developed …