학술논문
Removal of Cd(II) ions by oxidized coconut coir
Document Type
article
Source
Journal of Natural Fibers, Vol 16, Iss 1, Pp 37-48 (2019)
Subject
Language
English
ISSN
1544-0478
1544-046X
15440478
1544-046X
15440478
Abstract
Biosorption potential of oxidized coconut coir (OCC) for removal of Cd(II) from aqueous medium at batch and column level was studied. Lignin and cellulose groups of coir were modified to acidic groups. Optimum biosorption was observed at pH 6. Isotherm data revealed that Langmuir gives best fit for experimental results with maximum adsorption capacity of 12.35 mg/g compared to unmodified coconut coir (5.29 mg/g). The column experiments were conducted as a function of flow rate, bed height, and influent Cd(II) concentration. Biosorption has best performance at 10 mg/L inlet concentration, 5 ml/min flow rate and 7 cm bed height.