Removal of Nickel Using Various Biosrbents: Review
Publication Date: 08/05/2020
Author(s): Akoh Benjamin, Iyoha Lucky Sylvester, Iwuajoku Goodluck.
Volume/Issue: Volume 3 , Issue 3 (2020)
Abstract:
Nickel ion is one of the non-biodegradable toxic heavy metals commonly found in industrial effluents which causes severe health challenges when excessively accumulated in the food chain of various living organisms and the environment through mutagenesis and carcinogenicity. Different physicochemical conventional techniques have been used for nickel ion removal from wastewaters. However, these methods are energy-consuming, expensive and generate secondary pollutants as by-products. Hence, the need for a potential alternative to these existing techniques. The use of agricultural and biological materials as biosorbent for heavy metals removal has been found to be the potential alternatives to these existing conventional methods. This study is aimed at the review of various reports of various authors on the removal of nickel ion from wastewaters using biosorbents of agricultural and biological origin. The use of algal, bacteria, fungi as biosorbent under the growing, living, non-living conditions in batch and continuous operation were reviewed and reported. Langmuir and Freundlich's models were observed to be widely reported to fit in the biosorption of the Nickel ions from wastewater. Also, the study revealed that living, dead and non-living cells of these microorganisms were widely used as biosorbents as compared growing cells due to its toxicity.
