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Role of different plants on nitrogen and phosphorus removal at low temperature in lab-scale constructed wetlands
Xiao Liwei1,2,3; Jiang Hong1; Shen Chao1; Li Ke2,3; Hu Lei2,3
Source PublicationE3S Web of Conferences
meeting2019 4th International Conference on Advances in Energy and Environment Research, ICAEER 2019
Conference DateAugust 16, 2019 - August 18, 2019
Conference PlaceShanghai
PublisherEDP Sciences
Contribution Rank2
AbstractIn this study, plant growth and nitrogen and phosphorus removal efficiency in lab-scale CWs by five plants (H. vulgaris, N. peltatum, N. tetragona, N. pumilum, S. trifolia) in winter in Sichuan basin was evaluated. H. vulgaris and N. tetragona would well adapt to the winter wetland environment, and the relative growth at the end of the experiment was 89.83% and 66.85%, respectively. In winter, H. vulgaris kept growing with accumulated stems and leaves, while growth of N. tetragona was mainly caused by the growth of roots and stems underwater. In addition, during the winter, removal efficiencies were 66.29%, 57.47%, 54.78%, 55.47%, 41.66% of TN and 62.40%, 69.75%, 69.97%, 65.65%, 76.55% of TP for each planted CWs respectively. The results indicated that the removal of nitrogen and phosphorus from CWs was mainly achieved by substrate, while a small portion was attributed by plant. However, plants like H. vulgaris and N. tetragona, in the CWs in winter can play the role of landscaping. Thus, H. vulgaris could be considered as a suitable and effective nutrient removal plant for treatment of nitrogen and phosphorus water in winter wetlands in Sichuan basin. © The Authors, published by EDP Sciences, 2019.
KeywordConstructed wetlands Low temperatures Nitrogen and phosphorus Nitrogen and phosphorus removal Nutrient removal Removal efficiencies Sichuan Basin Wetland environment
Indexed ByEI
Accession numberAccession number:20194307586383
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Document Type会议论文
Corresponding AuthorShen Chao
Affiliation1.Chengdu Engineering Corporation Limited, Power China, Chengdu, 610041, China;
2.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu, 610041, China;
3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Xiao Liwei,Jiang Hong,Shen Chao,et al. Role of different plants on nitrogen and phosphorus removal at low temperature in lab-scale constructed wetlands[C]:EDP Sciences,2019:10123.
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