Find in Library

The booming industrial and biotechnological progress and unobstructed growth have contributed massive environmental pollution due to the controlled or uncontrolled release of waste material loaded with full of threatening, hazardous, and cancerous contaminants of emerging concern. Such widespread distribution or transportation of toxic pollutants in numerous environmental matrices are continuously posing severe threats to the living beings up to a certain extent. Thus, the highly efficient and timely mitigation of these emerging contaminants is of supreme interest and dire necessity of the modern world. Though several remediation strategies, such as chemical, physical, or combination of both, have been proposed and exploited against numerous contaminants. However, most of them require an extensive amount of harsh chemicals which not only makes them expensive means of treatment but also generates secondary disposal problem, thus remain inadequate for sustainable mitigation of numerous polluting agents. In this context, biological means so-called bioremediation at large and microbial bioremediation has gained significant attention for pollution abatement from different environmental matrices. Further to this, genetically engineered microbes have appeared as robust bioremediation tools with significant potentialities to eliminate environmental pollutants. Current challenging issues and confine boundaries related to the deployment of genetically engineered microbes as bioremediation factories on contaminated sites are spotlighted with suitable examples.