Lead (Pb2+) Removal from Wastewater by the Cyanobacterium Calothrix marchica

Authors

  • Suneerat Ruangsomboon Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
  • Amnat Chidthaisong Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
  • Boosya Bunnag School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
  • Duangrat Inthorn Department of Environmental Health Sciences, Mahidol University, Bangkok 10400, Thailand
  • Narumon W. Harvey Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand

Keywords:

lead (Pb2 ), Calothrix marchica, adsorption isotherm

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 qeq 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. 

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Published

2006-06-30

How to Cite

Suneerat Ruangsomboon, Amnat Chidthaisong, Boosya Bunnag, Duangrat Inthorn, and Narumon W. Harvey. 2006. “Lead (Pb2+) Removal from Wastewater by the Cyanobacterium Calothrix Marchica”. Agriculture and Natural Resources 40 (3). Bangkok, Thailand:784-94. https://li01.tci-thaijo.org/index.php/anres/article/view/243776.

Issue

Vol. 40 No. 3 (2006): May-June

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.