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Removal of Mixed Cd, Cr, Cu, Ni and Zn by Hibiscus canabinas  

최문술 (군산대학교 해양과학대학 해양생명과학부)
임철호 (군산대학교 해양과학대학 해양생명과학부)
Publication Information
Korean Journal of Environmental Biology / v.22, no.1, 2004 , pp. 120-126 More about this Journal
Abstract
Kenaf plants were hydroponically grown in reactor containing toxic metals as Cd, Cu, Cr, Ni and Zn to examine the ability to take up heavy metal. The plants were fertilized using a nutrient solution, which was appropriately adjusted to optimum pH, DO and conductivity. For n hydraulic retention time of 8 days, Cr, Cd, Cu, Ni and Zn were removed up to 90.5, 80.5, 66.1%, 71.1% and 79.4%, and reduced from 2.34 to 0.54 mg $L^{-1}$, 3.37 to 1.07 mg $L^{-1}$, 4.92 to 3.19 mg $L^{-1}$, 6.31 to 4.41 mg $L^{-1}$ and 6.27 to 2.09 mg $L^{-1}$. Especially, accumulation rate of Cr, Cd, Cu, Ni and Zn in the plant were measured up to 347.32, 275.39, 157.52, 50.48 and 211.01 mg DW kg $L^{-1}d^{-1}$, respectively. We considered that Kenaf plants removed Cr, Cd and Zn more effectively than other toxic metals applied.
Keywords
Hibiscus canabinas; heavy metals; accumulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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