J4 ›› 2011, Vol. 41 ›› Issue (5): 1548-1553.

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Application of the Freezing Period Hydrodynamics and Water Quality Model to Water Pollution Accident in Songhua River

SUN Shao-chen1,2,WEI Huai-bin3,XIAO Wei-hua2, ZHOU Zu-hao2, WANG Hao2,  |HE Hua-xiang2   

  1. 1.School of Environmental Science &|Engineering, Donghua University, Shanghai201620|China;
    2.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing100038, China;
    3.School of Hydraulic Engineering, North China University of Water Resources and Electric Power, Zhengzhou450011, China
  • Received:2010-12-08 Online:2011-09-26 Published:2011-09-26

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Abstract:

For the freezing period of the Songhua River mainstream, the hydrodynamics and water quality model was built, which was modified depending on the characteristics of hydrological measurement data in icebound season of 2006 and 2007. The simulated result matched the measurement value very well. And then, this model was used to analyze the nitrobenzene pollution accident of Songhua River. Compared with the observed contamination concentration, the error of simulated value is from 5% to 13%, and the peak value appeared after a lag time of more than 2 hours. Finally, for the two cases of mass flux increased by 20% or reduced by 5%, water quality was further investigated. The simulation result shows that the increased flux leads to the peak value of nitrobenzene appearing on the Baidu River section two hours early and reduced by 15%; the reduced flux leads to the peak value of nitrobenzene appearing six hours later and increased by 4.6%.

Key words: freezing period, hydrodynamics, water quality model, Songhua River, water pollution accident

CLC Number: 

  • P641.1
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