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Title: Lead (Pb<sup>2+</sup>) removal from wastewater by the cyanobacterium Calothrix marchica
Authors: Suneerat Ruangsomboon
Amnat Chidthaisong
Boosya Bunnag
Duangrat Inthorn
Narumon W. Harvey
King Mongkuts University of Technology Thonburi
Mahidol University
Keywords: Agricultural and Biological Sciences
Issue Date: 1-Jul-2006
Citation: Kasetsart Journal - Natural Science. Vol.40, No.3 (2006), 784-794
Abstract: Pb2+ removal ability of the living-freshwater cyanobacterium C. marchica was studied in batch experiments. The result showed that adsorption of Pb2+ by C. marchica reached equilibrium within 60 min. The amount of Pb2+ adsorbed (qeq) increased when cyanobacterial age increased. At lower biomass concentration cyanobacterium showed higher q eq than that at high biomass concentration. Elevated temperature increased Pb2+ adsorbed by C. marchica. The Langmuir adsorption isotherm fitted the results better than the Freundlich isotherm and, thus, was more suitable to describe Pb2+ adsorption by C. marchica. C. marchica had Pb2+ binding capacity (qmax) of 74.04 mg g -1, and indicators of adsorption capacity (Kf) of 18.01. Pb2+ removal under light and dark conditions was not significantly different.
ISSN: 00755192
Appears in Collections:Scopus 2006-2010

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