Characteristic and Influential Factors of Pollution Zone in the Lower Reach of Minjiang Tidal River

Abstract:

The lower reach of Minjiang River, which passes through the Fuzhou city, is in the tidal area. A Two-Dimensional hydrodynamic and water quality model is developed. Taking Wukong sewage outfall as an example, the characteristic of pollution zone which is visualized by the contour of concentration is investigated, and the influential factors are also analyzed. It shows that the longest upstream pollution zone appears near the fastest flood moment, the longest downstream one appears near the ebb moment, the widest pollution zone occurs near the high or low water stand moment. The factors such as pollutant load, pollutant decaying coefficient and longitudinal diffusion coefficient are sensitive to the range of the pollution zone.

• Periodical: Advanced Materials Research (Volumes 403-408)
• Pages: 2437-2440
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.403-408.2437
• Online since: November 2011
• Authors: Mei Bing Liu, Xing Wei Chen
• Keywords: Charcateristic of Pollution Zone, Influential Factor, Lower Reach of Minjiang River, Sewage Outfall, Two-Dimensional Water Quality Model

References

[1] M.B. Liu, X.W. Chen, Analysis on the response of sewage outfalls to the water quality of lower reaches of Minjiang River, Journal of Oceanography in Taiwan Strait, 2nd ed., Vol. 26., (2007), pp.220-225 (Ch).

[2] M.B. Liu, X.W. Chen, Numerical Simulation on Variation of the Contaminants in the Watercourse, Lower Reaches of Minjiang River, Journal of Subtropical Resources and Environment, 2nd ed., Vol. 1., (2006), pp.41-47 (Ch).

[3] G.S. Stelling. On the Construction of Computational Methods for Shallow Water Flow Problems, PhD. thesis, Delft University of Technology, the Netherlands, (1983).

[4] G.W. Fu, Mathematical Modeling and Numerical Simulation of the River Water Quality. Beijing: China Environmental Science Press, (1987).

[5] J.J. Leendertse, R. C. Alexander, S. K. Liu. A three-dimensional model for estuaries and coastal sea. Volume I: Principal of Computation. R-1417-OWRR. Santa Monica California: CA Rand Corp., (1973).

[6] M.B. Liu, X.W. Chen, Numerical Simulation of Two dimensional water quality of lower reaches of Minjiang River, Environmental Change and Water Security，Beijing: China Waterpower Press, (2008), pp.401-404 (Ch).

[7] Z.J. Chen, H.M. Wang, on the Calculation of Contaminated Zone and Wastewater Discharge．Water Resources Protection, 2nd ed., Vol. 2., (1999), pp.32-34(Ch).