Identification of River Sections for Domestic Water Supply along the Yangtze River in Jiangsu Province, China |
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Authors: | Yong Pang Ling Li Guangbo Cui Qi Yao |
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Affiliation: | (1) Centre for Eco-Environmental Modelling, Hohai University, Nanjing, 210098, People's Republic of China;(2) Institute of Environmental Science and Engineering, Hohai University, Nanjing, 210098, People's Republic of China;(3) Environmental Engineering Division, School of Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia;(4) Institute of Water Resources and Environment, Hohai University, Nanjing, 210098, People's Republic of China |
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Abstract: | This paper presents major findings from a recent study aiming to systematically determine suitable river sections for local
domestic water supply along the Yangtze River in Jiangsu Province, China. On the basis of analysis on the current riverbank
utilization and bank stability, accessible and stable river sections in the region were selected. The water quality in these
river sections was then studied using a two-dimensional unsteady flow and pollutant transport/transformation model, RBFVM-2D.
The model was calibrated and verified against the hydrodynamic data, water quality data and remote sensing data collected
from the river. The investigation on the pollution sources along the river identified 56 main pollution point sources. The
pollution zones downstream of these point sources are the main threat for the water quality in the river. The model was used
to compute the pollution zones. In particular, simulations were conducted to establish the relationship between the extent
of the pollution zone and the wastewater discharge rate of the associated point source. These water quality simulation results
were combined with the riverbank stability analysis to determine suitable river sections for local domestic water supply. |
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Keywords: | numerical model riverbank stability water quality water supply Yangtze River |
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