Qualitative analysis and quantitative simulation on Yin-Huang water salinization mechanism in Bei-Da-Gang Reservoir

Article type: Research Article

Authors: ZHAO, Wen-yu^; | WANG, Qi-shan | WU, Li-bo | ZHANG, Bin | WANG, Xiao-qin

Affiliations: Environmental Science and Engineering College, Nankai University, Tianjin 300071, China | Department of Resource and Environmental Engineering, Guilin Institute of Technology, Guilin 541004, China | Department of Hydralic Engineering, Tsinghua University, Beijing 100084, China

Note: [] Corresponding author. E-mail: [email protected]

Abstract: Yellow River water transfer for Tianjin is important in solving the water shortage in Tianjin, which facilitate economic development and social progress for many years. Fresh water drawn from Yellow River (i. e., Yin-Huang water) becomes saltier and saltier when being stored in the Bei-Da-Gang reservoir. We qualitatively analyze the water salinization mechanism based on mass transfer theory. The main factors are salinity transfer of saline soil, evaporation concentrating, and the agitation of wind. A simulative experimental pond and an evaporation pond were built beside the Bei-Da-Gang reservoir to quantitatively investigate the water salinization based on water and solute balance in the simulative pond. 80% of increased [Cl^-] is due to the salinity transfer of the saline soil and the other 20% is due to evaporation concentrating, so the former is the most important factor. We found that the salinization of Yin-Huang water can be described with a zero-dimension linear model.

Keywords: Yin-Huang-Ji-Jin Project, water salinization, simulative experiment, saline soil, evaporation concentrating, mass transfer, mathematical model

Journal: Journal of Environmental Sciences, vol. 17, no. 5, pp. 853-856, 2005