Comparison of nitrogen and phosphorus purification effects of different wetland plants on eutrophic water

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Yang, Junzhong^1 ; Qi, Yong^2 ; Li, Hongyuan^2 ; Xu, Guangyao^2

College of Environmental Science and Engineering, Nankai University, 300350, China^1

Tianjin LVYIN Landscape and Ecology Construction Co. Ltd, 300384, China^2

关键词: Control groups;    Eutrophic water;    Iris pseudacorus;    Landscape waters;    Miscanthus sinensis;    Nitrogen and phosphorus;    Purification effect;    Total phosphorus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012042/pdf
DOI  :  10.1088/1755-1315/113/1/012042

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Using hydroponic, 13 plants were selected from 2 type (aquatic plants, hygrophytes) of new varieties and common varieties of wetland plants in Tianjin to explore the differences of purification effect of nitrogen and phosphorus in water. The result shows that the plants on the removal rate of total nitrogen was significantly higher than control group, but the differences were small. Among them, yellow iris, Siberia iris, Cyperus alternifolius, aquatic Canna and Miscanthus sinensis had the best effect on TN, and the removal rate was above 99%; The removal rates of total phosphorus in plants were significantly higher than those in control group (except for M.sinensis cv. 'Variegatus'), and the differences among the groups were relatively significant. Among them, Irispseudoacorus, Cyperus alternifolius, iris pseudacorus, Scirpus tabernaemontani, Iris siberian, C.glauca and M.sinensis cv. 'Gracillimus' had the best effect on TP, and the removal rate was more than 70%. Therefore, Irispseudoacorus, Cyperus alternifolius, iris pseudacorus, Scirpus tabernaemontani, Iris siberian, C.glauca and M.sinensis cv. 'Gracillimus' can be used as an alternative plant for eutrophic, wetlands or landscape water.