Publication: Lead (Pb<sup>2+</sup>) removal from wastewater by the cyanobacterium Calothrix marchica
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Issued Date
2006-07-01
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ISSN
00755192
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2-s2.0-33847211469
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Mahidol University
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SCOPUS
Bibliographic Citation
Kasetsart Journal - Natural Science. Vol.40, No.3 (2006), 784-794
Suggested Citation
Suneerat Ruangsomboon, Amnat Chidthaisong, Boosya Bunnag, Duangrat Inthorn, Narumon W. Harvey Lead (Pb<sup>2+</sup>) removal from wastewater by the cyanobacterium Calothrix marchica. Kasetsart Journal - Natural Science. Vol.40, No.3 (2006), 784-794. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/22885
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Title
Lead (Pb<sup>2+</sup>) removal from wastewater by the cyanobacterium Calothrix marchica
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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.