Volume No. 12 Issue No.: 1 Page No.: 47-54 July-September 2017

 

BIOSORPTION : AN APPROACH FOR BIOREMEDIATION OF HEAVY METALS

 

Sharma Richa1 and Gupta Mahendra K.2

1. School of Studies in Microbiology, Jiwaji University, Gwalior (INDIA)
2. School of Studies in Botany, Jiwaji University, Gwalior (INDIA)

 

Received on : May 10, 2017

 

ABSTRACT

 

Expansion of industrial activities generates huge amount of toxic substances in the environment including heavy metals, which is responsible for toxicity in animals and human beings. Thereby, it is necessary to remove these pollutants from industrial effluents before discharging it into the environment. However, there are many methods for example ion exchange, ultra filtration, electrodialysis, sedimentation and reverse osmosis are used for the treatment of heavy metals containing industrial effluent but they turned out more expensive and less effective when the pollutants are present at lower concentrations. Thus, cheaper and more effective method should be searched for decontaminate targets. Bioremediation involves use of different microorganisms that employ biosorption process to decontaminate heavy metals. For this, Seaweed, fungi, microbial biomass and agricultural waste could be used as excellent source of biosorbents. Besides this, recovery of valuable sources also possible through biosorption. Today, biosorption is one of the important bioresource technology for removal of metal pollutants. The aim of this review is to focus the mechanism of biosorption, various biosorbent, advantage and disadvantages of biosorptionto remove heavy metals from different sources because of its effective, economical and eco-friendly nature.

 

Keywords : Biosorption, Biosorbents, Heavy metals, Bioremediation, Decontaminate

 

 

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