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Sustainable Environmental Clean-up
2021, 131-147

Bioremediation of organic pollutants: a sustainable green approach

Shrinjana Dhar, Ankita Das, Pritha Bhattacharjee

Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore Campus, Lahore, Pakistan.


The widespread contamination of heavy metals in the ecosystem has emerged as a global threat to the environment as well as human well-being because of their bioaccumulation and nonbiodegradability in nature. Despite natural existence, various anthropogenic sources have contributed to an unusually high concentration of heavy metals in the environment. Therefore there is a growing need for the development of novel, efficient, eco-friendly, and cost-effective approaches for the remediation of inorganic metals released into the environment and to safeguard the ecosystem. Bioremediation is one of the most viable options to rectify and reestablish the natural condition of environmental health. The advantage of bioremediation techniques over physical or chemical treatment is that they are cost-effective, noninvasive, and environmentally safe and provide a permanent solution. Many microbes of different taxonomic groups of bacteria, fungi, and algae have been reported to enzymatically degrade metal ions into less toxic forms or eliminate them from the environment in an eco-friendly manner. This chapter discusses the extensive role of microbial species in heavy metal remediation.

Keywords: Bioremediation, Heavy metal, MicrobesToxicity.

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