Biotic Strategies for Toxic Heavy Metal Decontamination

Title:Biotic Strategies for Toxic Heavy Metal Decontamination

Volume: 11 Issue: 3

Author(s): Rupesh K. Mishra*Vinay Sharma*

Affiliation:

• Department of Biosciences and Biotechnology, Banasthali University, Rajasthan, 304022,India

• Department of Biosciences and Biotechnology, Banasthali University, Rajasthan, 304022,India

Keywords: Heavy metals, decontamination, biological methods, removal, detoxification, degradation.

Abstract: Background: In the modern age of globalization and fast industrialization, the environmental matters are fetching more and more annoyance for human being. Patents reveal that heavy metals occur in immobilized form in sediments and as aggregates in nature. However due to the different human activities like ore mining and industrial processes, the natural biogeochemical cycles are disordered instigating amplified deposition of heavy metals in aquatic environments. The most common pollution causing heavy metals are considered to be the mercury, arsenic, lead, copper, silver, cadmium.

Objective: The goal of this work is to identify the biological action of heavy metal-contaminated water and sediments which can be categorized into bioaccumulation, biosorption, oxidation/ reduction, leaching, degradation, and phytoremediation.

Discussion: Among the various biological methods for decontamination of heavy metals from water, biosorption is known to be the most affordable, economical and efficient option for the management of capacious water bodies encompassing low concentrations of heavy metals. However, the physicochemical properties of the aquatic bodies that would extremely affect the performances of biosorbents should be prudently measured. The precipitation is efficient in decontamination/removal of relatively high concentrations of metals in water. The bioleaching of searched sediments in regulated systems is a speedy process as compared with phytoremediation.

Conclusion: In order to decontaminate the heavy metals from water, biological methods are very proficient and useful. These methods can be very efficient in cleaning up environment.

Cite this article as:

Mishra K. Rupesh *, Sharma Vinay *, Biotic Strategies for Toxic Heavy Metal Decontamination, Recent Patents on Biotechnology 2017; 11 (3) . https://dx.doi.org/10.2174/1872208311666170417101011

DOI https://dx.doi.org/10.2174/1872208311666170417101011	Print ISSN 1872-2083
Publisher Name Bentham Science Publisher	Online ISSN 2212-4012