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Nature has endowed us by a number of things. It is also equally true carelessness by human being caused a great loss to the earth. Pollution is one of such carelessness. But it is the beauty of nature that has given the treatment of every such carelessness. The technique “bioremediation" is nothing just a remedy by the nature that recycles wastes and makes them harmless and to some extent beneficial. It is found to be one of the most effective methods for restoring polluted river water and preserving the affected ecosystem. With the help of all-inclusive microorganisms, bioremediation involves the degradation, elimination, restriction and reclamation of numerous chemical and physical hazardous elements from the environment. It also involves disintegration as well as the transmutation of contaminants like as heavy metals which is the core premise of bioremediation. Different microorganisms such as algae are found to be game changer in the bioremediation process. Bioaugmentation, Bio stimulation, Biofilters, Bioreactors, Biopharming, Bioventing, Composting, Land farming are various Bioremediation techniques. All bioremediation processes have their own set of advantages and disadvantages. Above all, using bioremediation to resurrect a dirty river will result in significantly less contaminated, safe, and ship-shape waterways.
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