title: Process optimization studies of lead (Pb(II)) biosorption onto immobilized cells of Pycnoporus sanguineus using response surface methodology.
abstract: A central composite design (CCD) was employed to optimize the biosorption of Pb(II) ions onto immobilized cells of Pycnoporus sanguineus. The independent variables were initial Pb(II) concentration, pH and biomass loading. The combined effects of these variables were analyzed by response surface methodology (RSM) using quadratic model for predicting the optimum point. Under these conditions the model predicted a maximum of 97.7% of Pb(II) ions removal at pH 4, 200mg/L of initial Pb(II) concentration with 10g/L of biosorbent. The experimental values are in good agreement with predicted values within +0.10 to +0.81% error.
authors.affiliation: Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Penang, Malaysia.
authors.forename: Y
authors.initials: Y
authors.lastname: Yus Azila
authors.forename: M D
authors.initials: MD
authors.lastname: Mashitah
authors.forename: S
authors.initials: S
authors.lastname: Bhatia
mesh_terms: D000704:Analysis of Variance; D001673:Biodegradation, Environmental; D018533:Biomass; D018914:Cells, Immobilized / Q000378:metabolism*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000302:isolation & purification* / Q000378:metabolism*; D011124:Polyporaceae / Q000166:cytology* / Q000378:metabolism*; D012044:Regression Analysis; D015203:Reproducibility of Results
chemical_list: D007854:Lead