Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system

文献类型: 外文期刊

第一作者: Wang, Qinghai

作者: Wang, Qinghai;Zhang, Wei;Li, Cui;Xiao, Bo

作者机构:

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 )

ISSN:

年卷期:

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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.

分类号: TV21

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