文献类型： 外文期刊
作者： Wang, Qinghai 1 ; Zhang, Wei 1 ; Li, Cui 1 ; Xiao, Bo 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Res & Dev Ctr Grass & Environm, Beijing 100097, Peoples R China
关键词： Atrazine;Emergent hydrophyte;Phytoremediation;Removal contribution
期刊名称：WATER SCIENCE AND TECHNOLOGY （ 影响因子：1.915； 五年影响因子：2.054 ）
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收录情况： SCI
摘要： A hydroponic system was used to evaluate atrazine (ATZ) removal and uptake by three emergent hydrophytes, Iris pseudacorus, Lythrum salicaria and Acorus calamus, determining their potential as phytoremediation agents for ATZ-contaminated water. After 20 days of exposure, the relative growth rate of plants in sterile conditions was less than in natural conditions. ATZ amount in a culture solution planted with emergent plants decreased significantly compared with an unplanted solution, and the removal rate of ATZ in natural conditions was greater than in sterile conditions (p < 0.05). The degradation contributions of I. pseudacorus, L. salicaria and A. calamus were 75.6, 65.5 and 61.8%, respectively. Those of the corresponding microbial population in the solution were 5.4, 11.4 and 17.4%, respectively. Emergent plants play a dominant role in reducing the ATZ level in the water body and could be used as phytoremediation agents.
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