Relationship between Hydrodynamic Conditions and Water Quality in Landscape Water Body

2017 2nd International Conference on Environmental Engineering and Sustainable Development

生态环境科学;经济学

Kang, Mengxin^1,2 ; Tian, Yimei^1 ; Zhang, Haiya^1 ; Wang, Dehong^2

School of Environmental Science and Engineering, Tianjin University, Tianjin

300072, China^1

College of Architecture Engineering, Northeast Electric Power University, Jilin

132012, China^2

关键词: Hydrodynamic conditions;    Landscape water bodies;    Total phosphorus;    Urban landscape waters;    Water circulation;    Water circulation system;    Water quality deterioration;    Water quality indexes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/112/1/012001/pdf
DOI  :  10.1088/1755-1315/112/1/012001

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The urban landscape water usually lacks necessary water cycle and water speed is closed to zero, which easily lead to eutrophication in water system and deterioration of water quality. Therefore, understanding the impact of water circulation on the water quality is of great significance. With that significance, this research has been done to investigate the relationship between hydrodynamic conditions and water quality of urban landscape water based on adopted water quality indexes such as chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and nitrogen-ammonia (NH3-N). Moreover, MIKE 21 model is used to simulate the hydrodynamics and water quality under different cases in an urban landscape lake. The results of simulation show that water circulation system could effectively improve current speeds, reduce the proportion of stagnation area, and solve the problem of water quality deterioration caused by reclaimed water in the lake.