title: Biosorption of copper, cobalt and nickel by marine brown alga Sargassum sp. in fixed-bed column.
abstract: The biosorption of copper, cobalt and nickel by marine brown alga Sargassum sp. were investigated in a fixed-bed column (temperature = 30 degrees C; different pH). Langmuir and Freundlich sorption models were used to represent the equilibrium data. The maximum Cu2+ uptake was obtained at pH 4 and the optimum Co2+ and Ni2+ uptake were at pH 7. Different dosage of biosorbent did not have an effect on the results, but the 3.5 and 5 g of biosorbent were shown higher uptake. The metal removal rates were rapid, with about 80% of the total adsorption tacking place within 40 min.
authors.affiliation: Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Akbar
authors.initials: A
authors.lastname: Esmaeili
authors.forename: Samira
authors.initials: S
authors.lastname: Soufi
authors.forename: Abdolhossein
authors.initials: A
authors.lastname: Rustaiyan
authors.forename: Shila
authors.initials: S
authors.lastname: Safaiyan
authors.forename: Simin
authors.initials: S
authors.lastname: Mirian
authors.forename: Gila
authors.initials: G
authors.lastname: Fallahe
authors.forename: Nasrin
authors.initials: N
authors.lastname: Moazami
mesh_terms: D000327:Adsorption; D018533:Biomass; D003035:Cobalt / Q000008:administration & dosage* / Q000737:chemistry; D003300:Copper / Q000008:administration & dosage* / Q000737:chemistry; D004784:Environmental Monitoring / Q000379:methods; D006863:Hydrogen-Ion Concentration; D007477:Ions; D007700:Kinetics; D008954:Models, Biological; D009532:Nickel / Q000008:administration & dosage* / Q000737:chemistry; D000459:Phaeophyceae; D044647:Sargassum / Q000378:metabolism*; D013696:Temperature; D013997:Time Factors
chemical_list: D007477:Ions; D003035:Cobalt; D003300:Copper; D009532:Nickel