caa a22 4500 475746856 CHVBK 20180406123515.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1007/s002840010126 doi (NATIONALLICENCE)springer-10.1007/s002840010126 Hamdy A.A. Microbial and Natural Products Chemistry Department, National Research Center, Dokki, Cairo, Egypt, EG aut Biosorption of Heavy Metals by Marine Algae [Elektronische Daten] [A.A. Hamdy] The ability of four different algae (three brown and one red) that have not been previously studied to adsorb Cr3+, Co2+, Ni2+, Cu2+, and Cd2+ ions was investigated. The metal uptake was dependent on the type of biosorbent, with different accumulation affinities towards the tested elements. The HCl-treated biomass decreased the metal biosorptive capacity particularly in the case of Cr3 adsorption with Laurencia obtusa. The extent of uptake of the different metals with the tested algae was assessed under different conditions such as pH, time of algal residence in solution with the metal, and concentration of algal biomass. The rate of uptake of the different metals was very fast in the first 2 h; thereafter the increase in metal uptake was insignificant. The amount of the metal uptake (5-15 mg range) increased steeply by increasing the weight of the biomass. An exception was L. obtusa, where a parallel increase of the uptake of different metals was observed on increasing the algal mass from 5 to 50 mg. Springer-Verlag New York Inc., 2000 https://doi.org/10.1007/s002840010126 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s002840010126 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Hamdy A.A. Microbial and Natural Products Chemistry Department, National Research Center, Dokki, Cairo, Egypt, EG aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer