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Journal of Applied Phycology

, Volume 22, Issue 2, pp 181–186 | Cite as

Adsorption of turbid materials by the cyanobacterium Phormidium parchydematicum

  • Choong-Jae Kim
  • Yun-Ho Jung
  • Chi-Yong Ahn
  • Young-Ki Lee
  • Hee-Mock OhEmail author
Article

Abstract

The present study investigated the adsorption of turbid materials such as clays, by microalgae. Among six tested microalgae, including Chlorophyceae and Cyanophyceae, a cyanobacterium, Phormidium parchydematicum strain KCTC 10851BP, and unicellular alga, Chlorella vulgaris strain UTEX 265, showed a higher turbidity-removal efficiency (TRE) of 99% and 93%, respectively, for clay-containing water after 24 h, which was much higher than the 36% for the control. The TREs of all the treatments were >95% after 24 h, except for the treatment with a lower algal density and optical density (OD) = 0.1. Phormidium parchydematicum demonstrated a slightly higher TRE than a polyaluminum chloride coagulant (Al13(OH)28Cl9SO4) for a turbid field water. Scanning electron microscope (SEM) observations revealed a dense adsorption of clay particles to the surface of P. parchydematicum. Thus, it would appear that P. parchydematicum and C. vulgaris can be used for clay removal in turbid water by sedimentation through microalgae–clay flocculation.

Keywords

Chlorella vulgaris Clay Cyanobacteria Phormidium parchydematicum Turbid material 

Notes

Acknowledgments

This research was supported by a grant from the Carbon Dioxide Reduction & Sequestration Research Center, a 21st Century Frontier Program funded by the Korean Ministry of Education, Science and Technology.

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Choong-Jae Kim
    • 1
  • Yun-Ho Jung
    • 1
  • Chi-Yong Ahn
    • 1
  • Young-Ki Lee
    • 1
  • Hee-Mock Oh
    • 1
    Email author
  1. 1.Environmental Biotechnology Research CenterKorea Research Institute of Bioscience and BiotechnologyDaejeonRepublic of Korea

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