Hibiscus canabinas를 이용한 Cd, Cr, Cu, Ni 및 Zn의 제거
Removal of Mixed Cd, Cr, Cu, Ni and Zn by Hibiscus canabinas
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Abstract
- Kenaf plants were hydroponically grown in reactor containing toxic metalsas Cd, Cu, Cr, Ni and Zn to examine the ability to take up heavy metal. The plants werefertilized using a nutrient solution, which was appropriately adjusted to optimum pH,DO and conductivity. For a hydraulic retention time of 8 days, Cr, Cd, Cu, Ni and Znwere removed up to 90.5, 80.5, 66.1%, 71.1% and 79.4%, and reduced from 2.34 to 0.54 mgL-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 upto 347.32, 275.39, 157.52, 50.48 and 211.01mg DWkg-1 d-1, respectively. We consideredthat Kenaf plants removed Cr, Cd and Zn more effectively than other toxic metalsapplied.
참고문헌 (16)
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