Single and binary biosorption of cerium and europium onto crab shell particles

Is biosorption suitable for decontamination of metal-bearing wastewaters? A critical review on the state-of-the-art of biosorption processes and future directions

“…Most of the past studies evaluated the performance of biosorbents with a synthetic solution containing a metal of interest based on which recommendations were made for treatment of real industrial effluents. However, the behavior of biosorbent tends to differ in a multi-component system (Saeed et al, 2005;Vijayaraghavan and Balasubramanian, 2010). For instance, industrial wastewaters often contain a large amount of light metal ions (high total dissolved solids (TDS)) in addition to metal ions of interest.…”

Significance of age, temperature, and aeration of yeast cell culture for the biosorption of europium from aquatic systems

“…Diniz and Voleksy [3] report 0.8-0.9 mmol Eu g −1 of Sargassum biomass for pH range 3-5, while Cadogan et al [28] report maximum monolayer sorption capacity of 114 and 3.2 mg g −1 by chitosan nanoparticles and crab shell powder, respectively. Maximum sorption capacity of Eu by crab shell particles at pH 6 was found to be 49.5 mg g −1 [29] and neodymium (an homolog of europium of same physicochemical properties) uptake lied between 10 and 12 mg g −1 by Candida colliculosa, Debaryomyces hansenii, and Kluyveromyces marxianus yeasts at pH 1.5 [2]. In the present study, under optimal conditions, Eu removal was found to be 37%, which corresponds to 8 mg Eu g −1 .…”

Application of novel nanobiocomposites for removal of nickel(II) from aqueous environments: Equilibrium, kinetics, thermodynamics and ex-situ studies

“…The uptake values of Ni(II) in the presence of coions using PG-NBC and CL-NBC were calculated and the experiments were repeated in duplicate. The interaction effects were studied using extended Langmuir and Sheindorf Rebhun Shentuck (SRS) models following the standard equations [27].…”