Research on Remediation of Heavy Metals in Sediment with Lotus and Water Lily
SONG Li1, 2, HUANG Qin-chao2, HUANG Min-sheng2*
1. Chongqing Environmental Materials and Repair Technology Key Laboratory, Chongqing University of Arts Sciences, Chongqing 402160, China 2. College of Resources and Environment, East China Normal University, Shanghai 200062, China
Abstract：The aquatic landscape plants lotus and water lily were selected to repair the heavy metal in black odorous river sediments. With ICP-AES inductively coupled full spectrum of direct reading plasma emission spectrometry, the total and forms of content of heavy metals Cd, Cr, Cu, Ni, Pb in sediment and plants, the distribution of heavy metals in plants to were determined .The results showed that the average removal rate of the lotus in terms of the removal of heavy metals in the sediments was 20.42% while that of water lily was 18.23%; after lotus and water lilies were planted, the forms of content of heavy metals in sediments were decreased, the phytoremediation of main forms of Cr, Pb, Ni in sediments were theresidual state; the main forms of Cd, Cu were extractable. The distribution of Cu, Ni among the water lilies was stem<leaf<root, Cd and Pb was leaf<stem<root, Cr was stem<root<leaf. The distribution of Cr, Ni in the lotus for root<leaf<stem, Cu was leaf<root<stem, Cd, Pb were mainly in the lotus leaf tissue.
Key words：Lotus;Water lily;Sediment;Heavy metal;Research on remediation
宋 力1,2，黄勤超2，黄民生2* . 利用荷花与睡莲对沉积物中重金属的修复研究 [J]. 光谱学与光谱分析, 2016, 36(09): 2884-2888.
SONG Li1, 2, HUANG Qin-chao2, HUANG Min-sheng2* . Research on Remediation of Heavy Metals in Sediment with Lotus and Water Lily. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(09): 2884-2888.
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