Biosorption of Zn(II) on the different Ca-alginate beads from aqueous solution.
The performance of a new biosorbent system, consisting of a fungal biomass immobilized within an orange peel cellulose absorbent matrix, for the removal of Zn(2+) heavy metal ions from an aqueous solution was tested. The amount of Zn(II) ion sorption by the beads was as follows; orange peel cellulose with Phanerochaete chrysosporium immobilized Ca-alginate beads (OPCFCA) (168.61 mg/g) > orange peel cellulose immobilized Ca-alginate beads (OPCCA) (147.06 mg/g) > P. chrysosporium (F) (125.0 mg/g) > orange peel cellulose (OPC) (108.70 mg/g) > plain Ca-alginate bead (PCA) (98.26 mg/g). The Zn(2+) concentration was 100 to 1000 mg/L. The widely used Langmuir and Freundlich isotherm models were utilized to describe the biosorption equilibrium process. The isotherm parameters were estimated using linear and non-linear regression analysis. The Box-Behnken model was found to be in close agreement with the experimental values, as indicated by the correlation coefficient value of 0.9999.
Lai
Yi-Ling
YL
Graduate Institute of Environmental Engineering, National Central University, Chung-Li 320, Taiwan.
Annadurai
Gurusamy
G
Huang
Fu-Chuang
FC
Lee
Jiunn-Fwu
JF
D000327:Adsorption; D000464:Alginates / Q000737:chemistry*; D002482:Cellulose / Q000302:isolation & purification; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D016014:Linear Models; D012996:Solutions; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
D000464:Alginates; D006603:Hexuronic Acids; D012996:Solutions; D014867:Water; D020723:Glucuronic Acid; D002482:Cellulose; D015032:Zinc