Metal(loid) Bioremediation: Strategies Employed by Microbial Polymers

Ayansina Segun Ayangbenro and Olubukola Oluranti Babalola
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Ayansina Segun Ayangbenro: Food Security and Safety Niche, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
Olubukola Oluranti Babalola: Food Security and Safety Niche, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa

Sustainability, 2018, vol. 10, issue 9, 1-14

Abstract: Environmental pollution arising from metal(loid)s is a result of industrialization, and has led to serious health issues. Conventional methods of metal(loid) removal often results in generation of secondary waste which is toxic to the environment. Bioremediation in combination with physicochemical techniques offer an excellent and effective means of removal. The use of secondary metabolites and extracellular polymers produced by microorganisms is an effective procedure employed in metal(loid) sequestration and reduction in toxicity of contaminated environments. These biopolymers have different chemical structures and have shown varied selectivity to different metal(loid)s. This review discusses various microbial polymers, their mechanism of metal(loid) removal and their potential application in remediation of contaminated environment.

Keywords: biodegradation; biofilms; bioflocculant; biopolymers; biosurfactant; secondary metabolites; pollution (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
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