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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Research Article|
September 01 2012
Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system
Qinghai Wang;
1Beijing Research & Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
E-mail: qinghaiw@sina.com
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Wei Zhang;
Wei Zhang
1Beijing Research & Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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Cui Li;
Cui Li
1Beijing Research & Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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Bo Xiao
Bo Xiao
1Beijing Research & Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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Water Sci Technol (2012) 66 (6): 1282–1288.
Article history
Received:
January 17 2012
Accepted:
May 02 2012
Citation
Qinghai Wang, Wei Zhang, Cui Li, Bo Xiao; Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system. Water Sci Technol 1 September 2012; 66 (6): 1282–1288. doi: https://doi.org/10.2166/wst.2012.320
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Qinghai Wang, Wei Zhang, Cui Li, Bo Xiao; Phytoremediation of atrazine by three emergent hydrophytes in a hydroponic system. Water Sci Technol 1 September 2012; 66 (6): 1282–1288. doi: https://doi.org/10.2166/wst.2012.320
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