Water Environmental Capacity Calculated Based on Point and Non-Point Source Pollution Emission Intensity under Water Quality Assurance Rates in a Tidal River Network Area

Lina Chen, Longxi Han, Junyi Tan, Mengtian Zhou, Mingyuan Sun, Yi Zhang, Bo Chen, Chenfang Wang, Zixin Liu and Yubo Fan
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Lina Chen: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Longxi Han: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Junyi Tan: Jiangsu Engineering Consulting Center, Nanjing 210000, China
Mengtian Zhou: Academy of Environmental Planning and Design, Nanjing University, Nanjing 210093, China
Mingyuan Sun: Jiangsu Forestry Bureau, Nanjing 210093, China
Yi Zhang: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Bo Chen: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Chenfang Wang: Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Zixin Liu: College of Science, Hohai University, Nanjing 210098, China
Yubo Fan: College of Science, Hohai University, Nanjing 210098, China

IJERPH, 2019, vol. 16, issue 3, 1-9

Abstract: A mathematical model for simulating hydrodynamics and pollutants migration in a tidal river network was constructed, which takes the temporal and spatial distribution of rainfall runoff and non-point pollutants into consideration. Under the design hydrologic conditions of a typical hydrological year, the daily concentration change process for the control section is obtained. Aiming at the uncertainty of hydrology and water quality parameters such as flow direction, flow rate and concentration change in tidal river network area, a statistical analysis method is used to obtain the maximum allowable concentration of pollutants in the control section under the condition of the water quality standard assurance rate of. Then, a formula for calculating the pollutions emission intensity of point and non-point sources is derived. The method was applied to the pollution source control in a typical region like Taihu in China.

Keywords: tidal river network area; control section; water quality assurance rate; uncertainty; point and non-point source; water environmental capacity (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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