Adsorption of turbid materials by the cyanobacterium Phormidium parchydematicum

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Title
Adsorption of turbid materials by the cyanobacterium Phormidium parchydematicum
Author(s)
C J Kim; Y H Jung; Chi-Yong Ahn; Young Ki Lee; Hee-Mock Oh
Bibliographic Citation
Journal of Applied Phycology, vol. 22, no. 2, pp. 181-186
Publication Year
2010
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.
Keyword
Chlorella vulgarisClayCyanobacteriaPhormidium parchydematicumTurbid material
ISSN
0921-8971
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10811-009-9440-y
Type
Article
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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