title: Response surface optimization of the removal of nickel from aqueous solution by cone biomass of Pinus sylvestris.
abstract: Response surface methodology was applied to optimize the removal efficiency of Ni(II). Pinus sylvestris ovulate cones were used in this study. A 2(3) full-factorial central composite design was employed for experimental design and analysis of the results. The initial Ni(II) concentration (10-30 mg/l), pH (2.5-6.5) and biomass concentration (5-25 g/l) were the critical components of the removal optimized. The optimum pH, m (biomass concentration) and C0 (initial Ni(II) concentration) were found to be 6.17, 18.8 g/l and 11.175 mg/l, respectively. Under these conditions, removal efficiency of Ni(II) was 99.91%.
authors.affiliation: Department of Environmental Engineering, Yildiz Technical University, 34349 Beşiktaş, Istanbul, Turkey. mmevra@yahoo.com
authors.forename: Mevra Yalvac
authors.initials: MY
authors.lastname: Can
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Kaya
authors.forename: O Faruk
authors.initials: OF
authors.lastname: Algur
mesh_terms: D000327:Adsorption; D018533:Biomass; D006863:Hydrogen-Ion Concentration; D009532:Nickel / Q000302:isolation & purification*; D041605:Pinus sylvestris / Q000378:metabolism* / Q000648:ultrastructure; D018514:Plant Structures / Q000378:metabolism* / Q000648:ultrastructure; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D009532:Nickel