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《Journal of Arid Land Resources and Environment》 2016-01
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The water quality variation characteristics of Wulansuhai lake in freezing thawing process

SONG Shuang;JIA Keli;SHI Xiaohong;HU Hua;ZHAO Shengnan;WU Yong;Water Conservancy and Civil Engineering College,Inner Mongolia Agricultural University;College of Computer and Information Engineering,Inner Mongolia Agricultural University;  
In order to use freezing and thawing to improve the Wuliangsuhai Lake water environment,the freezing and thawing of the lake water was simulated in the Lab under- 25℃ and- 15℃ freezing temperature respectively using one dimensional unidirectional lake freeze simulator. The impacts of the freezing and thawing on the concentration of pollutants and the water quality properties were analyzed. Fuzzy neural network method was used to evaluate the water quality characteristics. The results show that the freezing can expel the pollutants in the water samples; the thawing can absorb the pollutants. The lower the freezing temperature is,the less quantity of pollutants is expelled. The larger the concentration of pollutants is in the lake water,the larger quantity of pollutants in the ice freezing process is expelled. The freezing function can be used in the treatment of lake pollution for improving the water quality of the water under the ice,and the quality of the whole lake water body can be significantly improved.
【Fund】: 国家自然科学基金项目(51339002 51169017 51269017 51069007 5096900 50669004 50269001);; 校级创新团队资助
【CateGory Index】: X524
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