Performance of dead Fucus serratus biomass in binary biosorption of Cd (II) and Ni (II) from aquatic habitat

Ahmady-Asbchin, Salman; Jafari, Naser

doi:10.29252/nbr.1.1.45

Performance of dead Fucus serratus biomass in binary biosorption of Cd (II) and Ni (II) from aquatic habitat

Authors

Salman Ahmady-Asbchin

Naser Jafari

University of Mazandaran, Babolsar

https://doi.org/10.29252/nbr.1.1.45

Abstract

Methods of physical and chemical adsorption of heavy metals have disadvantages in some ways- such as high cost and ineffectiveness at low concentrations. In recent decades methods of biological uptake of heavy metals have been investigated. The biological adsorbents include bacteria, fungi and alga, among which algae have the highest efficiency of metal uptake. This study indicated that Alginic acid is most responsible for the uptake of metals, such as nickel (II) and cadmium (II). Fucus serratus, brown alga, used as a cost-effective adsorbent for the biological uptake of cadmium and nickel ions simultaneously in a batch reactor in this study. Surface structure of algae has also been investigated. Adsorption kinetics have been measured and the results have indicated that the equilibrium time is about 300 minutes. The adsorption isotherm was interpreted by means of the Langmuir equation. The maximum adsorption rate for cadmium (II) and nickel (II) turned out to be about 0.85 and 0.95 mmol/g, respectively.

Keywords

alga

cadmium

nickel

alginic acid

biosorption

20.1001.1.24236330.1393.1.1.5.5

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