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http://dx.doi.org/10.7857/JSGE.2011.16.5.001

Phytoremediation on the Heavy Metal Contaminated Soil by Hyperaccumulators in the Greenhouse  

Park, Sang-Hean (Department of Environmental Engineering, Kwangwoon University)
Choi, Sang-Il (Department of Environmental Engineering, Kwangwoon University)
Park, Jong-Bu (Research Institute of Technology, Hanwha E&C Corp.)
Han, Ha-Kyu (Korea Environment Corporation)
Bae, Sei-Dal (Department of Environmental Engineering, Kwangwoon University)
Sung, Il-Jong (Department of Environmental Engineering, Kwangwoon University)
Park, Eung-Ryeol (Department of Environmental Engineering, Kwangwoon University)
Publication Information
Journal of Soil and Groundwater Environment / v.16, no.5, 2011 , pp. 1-8 More about this Journal
Abstract
This study was performed to evaluate the remediation efficiency by Helianthus annuus, Brassica juncea and Brassica campestris on the soil contaminated with nickel, zinc and lead, respectively. The growth rates fell down under 60% in the condition of over 700 mg/kg of zinc for Brassica campestris, 300 mg/kg of lead for Helianthus annuus, and 150 mg/kg of nickel for Brassica juncea on the basis of heavy metal concentration in the soil, because of its toxicity. Also, the hyperaccumulators showed the maximum heavy metal contents in their biomass after 90 days of cultivation. The accumulated heavy metal content per kilogram of hyperaccumulator was 0.65 mg of nickel in Brassica juncea, 0.14 mg of zinc in Brassica campestris, and 0.06 mg of lead in Helianthus annuus, respectively. Additionally, 73.2% of nickel accumulated in Brassica juncea and 95.1% of zinc accumulated in Brassica campestris were concentrated in the upper site of crop like stem and leaves. However, in the case of Helianthus annuus, 83.7% of lead was accumulated in the root.
Keywords
Phytoremediation; Heavy metal; Toxicity; Hyperaccumulator;
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