Insights on Cadmium Removal by Bioremediation: The Case of Haloarchaea

Although heavy metals are naturally found in the environment as components of earth’s crust, environmental pollution by these toxic elements has increased since industrial revolution. Some them can be considered essential, they play regulatory roles different biological processes; but role other living tissues is not clear, and once ingested accumulate organism for long periods time causing adverse health effects. To mitigate this problem, methods have been used to remove from water soil, such chelation-based processes. However, techniques like bioremediation leaving conventional methodologies background being more effective eco-friendlier. Recently, research lines promoted, which several organisms approaches. Within context, extremophilic microorganisms represent one best tools treatment contaminated sites due biochemical molecular properties show. Furthermore, it estimated that 5% effluents saline hypersaline, halophilic suggested good candidates kind samples. These microorganisms, specifically haloarchaea group, interest design strategies aiming removal polluting compounds efficiency their metabolism under extreme conditions significant tolerance highly metals, bromate, nitrite, chlorate, or perchlorate ions. there still few trials proven environments with using microorganisms. This review analyses scientific literature focused on metabolic capabilities may allow microbes tolerate eliminate media, paying special attention cadmium. Thus, work will shed light potential uses soils waters negatively affected