Developing a way to select plants for eutrophication eco-remediation by their nutrient uptake and growth kinetics characteristics

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Sun, J.H.^1 ; Li, Y.^2 ; Yang, Y.J.^1 ; Cui, P.^1 ; Cheng, Z.Y.^1 ; Qiao, X.T.^1 ; Xu, Y.J.^3

Tianjin Key Lab of Aqua-Ecology and Aquaculture, College of Fisheries, Tianjin Agricultural University, Tianjin

300384, China^1

College of Engineering and Technology, Tianjin Agricultural University, Tianjin

300384, China^2

Key Laboratory for Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo

315211, China^3

关键词: Absorption kinetics;    Absorption rates;    Eco remediations;    Kinetics characteristics;    Light intensity;    Nitrogen and phosphorus;    Nutrient uptake;    Optimum growth conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/2/022070/pdf
DOI  :  10.1088/1755-1315/199/2/022070

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this article, a method of selecting eutrophication-remediated plants is proposed, which established the selecting index that is based on the ability of removing nitrogen (N) and phosphorus (P) rapidly and efficiently. This article combines parameters of absorption kinetics and growth kinetics to reflect their ability of removing nitrogen and phosphorus of the selected plants. The results showed: (1) The optimum growth conditions of 3 species respectively, temperature 31.30, 23.38, 26.10°C; salinity 32.10, 21.10, 22.77; light intensity 287.23, 229.07, 216.65 μmol/(m2•s). (2) Under their optimum growth conditions, the maximum absorption rates (Vmax) respectively were 57.83, 54.26, 52.32 μmolN•dwg-1•h-1, 3.142, 2.802, 2.132 μmolP•dwg-1•h-1. (3) Selecting index Y and Y′ were 13.93, 5.03, 10.84, and 5.99, 1.92, 4.60 for N; 59.40, 58.67, 57.92, and 0.41, 0.23, 0.27 for P, respectively. Both Y and Y′ of G. lichenoides for removing N and P were bigger than those of G. lemaneiformis and G. tenuistipitata var. liui.