生态环境学报2011，Vol.20Issue(8)：1289-1294,6.
呼伦湖冰封期污染特征分析及对水处理的意义
Analysis on polluting characteristics in Hulun Lake during ice-on period and its application in field of water treatment
摘要
Abstract
The concentration and distribution characteristics of total nitrogen (TN), total phosphorus(TP) and chemical oxygen de-mand(COD) in ice layer and water during ice-on period in Hulun Lake of Inner Mongolia were studied. The result shows that the concentration of TN, TP and COD in water are much higher than that of in ice layer which is on the water. The concentration of TN, TP and COD in water are 3.144 times, 2.200 times and 3.042 times respectively more than that of in ice layer, that is, the process of low temperature freezing has a good concentration effect on pollutants in water body. The spatial variability of TN, TP and COD in water is much less than that in ice layer. The freezing concentrate effect was explained from three aspects known as the liquid-solid phase equilibrium theory, crystallography theory and thermodynamics theory reasonably. The result shows that concentration effect can be used in field of water treatment on a large scale, which can save resources and protect environment.关键词
呼伦湖/冰封期/冷冻浓缩机理/给水处理/污水处理Key words
Hulun Lake/ ice-on period/ mechanism of freezing concentration/ water supply treatment/ wastewater treatment分类
资源环境引用本文复制引用
张岩,李畅游,张生,史小红,李卫平..呼伦湖冰封期污染特征分析及对水处理的意义[J].生态环境学报,2011,20(8):1289-1294,6.基金项目
国家自然科学基金项目(50569002 （）
50669004 （）
51069007) （）
内蒙古自治区水利厅重点支持项目(20080105) （20080105）
内蒙古自治区“十一五”科技攻关项目 （）
