Biosorption of Cd (II) from Aqueous Solution by Fucus Serratus: Surface Characterization and Sorption Mechanisms

One of the toxic element cadmium is environmentally and through water, air and food into the body and be associated with Metallothionein accumulated in the kidneys, causing disturbance in the body are normal activities. In this work, the brown alga (Fucus serratus) used as a low cost sorbent has been studied for the biosorption of Cadmium (II) ions in batch reactors. Cadmium ions adsorption by the biosorbents on tap wasselected for high efficiency. In this research it became clear that a key role in the uptake of cadmium ions alginate surface active groups, especially carboxyl foundations are responsible. Firstly, the characterization of the surface functional groups was performed with the method, a qualitatively analysis with the study of FT-IR spectrum. The equilibrium time was about 3. 0 min and the adsorption equilibrium data were well described by the Langmuir's equation. The maximum capacity has been extrapolated to 0/85 mmol. g-1. Finally; theefficiency of this biosorbent in natural tap water for the removal of cadmium was also investigated.