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Water pollution is an alarming problem in developing countries. Dried algae can be considered as potential and suitable bio-sorbents due to their fast and easy growth and high availability. The special surface properties of these algae allow them to adsorb different types of organic and inorganic pollutants from solutions. In this context, the removal of anionic acid blue 113 dye (AB113) from aqueous solutions by dried  Corallina officinalis  alga as low-cost bio-sorbent was chosen as a case study of a typical remediation process of water contaminants. The effect of various environmental and physicochemical parameters has been studied. The results show that the equilibrium adsorption was established within 120 min. The sorption phenomenon was investigated by determining the process kinetics at different concentrations and the adsorption isotherms at different temperatures. The kinetics results showed that the pseudo second-order kinetics model generates the best agreement with the experimental data. The modeling results showed that linear Langmuir and Freundlich models appear to fit the adsorption data better than Temkin model for the adsorption of AB113 onto dried  C. officinalis  alga. It can be concluded that  C. Officinalis alga  can be successfully used as adsorbent.

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Kinetic and equilibrium isotherm studies for the removal of acid blue 113 dye by dried <i>corallina officinalis</i> alga as a novel eco-friendly adsorbent

Kinetic and equilibrium isotherm studies for the removal of acid blue 113 dye by dried corallina officinalis alga as a novel eco-friendly adsorbent