Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model

doi:10.1007/s11783-010-0279-x

Front Envir Sci Eng Chin

2011, Vol. 5

Issue (2) : 255-265 https://doi.org/10.1007/s11783-010-0279-x

RESEARCH ARTICLE

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model

Haifeng JIA¹(

), Shuo WANG¹, Mingjie WEI², Yansong ZHANG¹

1. Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China; 2. Beijing Municipal Urban Planning and Design Institute, Beijing 100045, China

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Abstract

The water quality pollution and ecological deterioration in peri-urban rivers are usually serious under rapid urbanization and economic growth. In the study, a typical peri-urban river, Nansha River, was selected as a case study to discuss the scheme of peri-urban river rehabilitation. Located in the north part of the Beijing central region, the Nansha River watershed has been designated as an ecologically friendly garden-style area with high-tech industry parks and upscale residential zones. However, the Nansha River is currently seriously contaminated by urban and rural pollutants from both nonpoint sources (NPS) and point sources (PS). In this study, the pollutant loads from point sources and nonpoint sources in the Nansha River watershed were first assessed. A coupled model, derived from the Environmental Fluid Dynamics Code and Water Quality Analysis Simulation Program, was developed to simulate the hydrodynamics and water quality in the Nansha River. According to the characteristics of the typical peri-urban river, three different PS and NPS control scenarios were designed and examined by modeling analyses. Based on the results of the scenario analysis, a river rehabilitation scheme was recommended for implementation.

Keywords peri-urban river coupled hydrodynamic-water quality modeling scenario analysis river rehabilitation

Corresponding Author(s): JIA Haifeng,Email:jhf@tsinghua.edu.cn

Issue Date: 05 June 2011

Cite this article:

Haifeng JIA,Shuo WANG,Mingjie WEI, et al. Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model[J]. Front Envir Sci Eng Chin, 2011, 5(2): 255-265.

URL:

https://academic.hep.com.cn/fese/EN/10.1007/s11783-010-0279-x
https://academic.hep.com.cn/fese/EN/Y2011/V5/I2/255

Fig.1 Location of Nansha River watershed and its river system

Fig.2 Waste dumping and wastewater discharge in an uncontrolled manner

Fig.3 Technical approach for developing the plan

Fig.4 WASP/EUTRO state variable interactions []

Fig.5 Spatial conceptualization scheme for the Nansha River

Fig.6 Computational cells for the Nansha River

Fig.7 Calibration and verification results of the model. (a) Calibration; (b) verification

Tab.1 Statistics of calibration and verification

Fig.8 Spatial distributions of WWPTs and wetland

Tab.2 Pollutant loads from point sources and nonpoint source under scenario 1

Fig.9 Simulation results for cell 12 in a wet year under scenario 1

Tab.3 Pollutant loads from Point sources and nonpoint sources under scenario 2

Tab.4 Comparison of simulated results and the grade IV of GB3838-2002 in wet year

Fig.10 Simulation results for cell 12 in wet year under scenario 2

Tab.5 Pollutant loads from Point sources and nonpoint source under scenario 3

Fig.11 Simulation results for cell 12 in wet year under scenario 3

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