Biosorption isotherms of Pb (II) and Zn (II) on Pestan, an extracellular polysaccharide, of Pestalotiopsis sp. KCTC 8637P

Cited 42 time in scopus
Metadata Downloads
Title
Biosorption isotherms of Pb (II) and Zn (II) on Pestan, an extracellular polysaccharide, of Pestalotiopsis sp. KCTC 8637P
Author(s)
Seong Hoon Moon; Chan Sun Park; Y J Kim; Y I Park
Bibliographic Citation
Process Biochemistry, vol. 41, no. 2, pp. 312-316
Publication Year
2006
Abstract
To assess the potential applicability of Pestan, a fungal extracellular polysaccharide, to wastewater treatment as a biosorbent, sorption of Pb (II) and Zn (II) on Pestan was examined using the Freundlich, Langmuir, and Tein and Huang's isotherms. The equilibrium isotherms were shown to be 120 mg Pb (II)/g and 60 mg Zn (II)/g Pestan, respectively. The metal sorption of Pestan fit better to Freundlich model than Langmuir model; the adsorption capacity (ln K) and adsorption intensity (1/n) of Pb (II) were higher than those of Zn (II). From the plot of reaction time against adsorption density, the adsorption constants for Pb (II) and Zn (II) were determined to be 3.57 × 10 5 and 5.63 × 103, respectively, and the K a of Pb (II) was 63.4 times higher than that of Zn (II).
Keyword
Liquid-liquid biosorptionPolysaccharideSorption isotherm
ISSN
0032-9592
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.procbio.2005.07.013
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Immunoregulatory materials Research Center > 1. Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.