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应用野外实验池实测及模式模拟等实验与计算方法对松花江水中23种有机污染物的迁移转化行为进行了模拟研究.应用3个小型野外实验池于江边现场、经72h、3个不同实验条件的同时测定,得到各池条件下,每一化合物表观总一级动力学常数.由之估算了挥发性有机物的挥发速率常数、硝基芳烃的光解速率常数.建立了适于实验池及河流的箱式模型.应用箱式模型及所得上述参数,数学模拟了污染物在实验池及江水中变化规律,得到与实际符合的结果.
The experiment and calculation method of field experiment pool and mode simulation were used to simulate the migration and transformation of 23 kinds of organic pollutants in Songhua River water. Three small field experiment ponds were used to measure the total first-order kinetic constants of each compound under the conditions of different ponds at 72 hours and three different experimental conditions. The volatilization rate constants of volatile organic compounds and photolysis rate constants of nitroaromatics were estimated. Established a box model suitable for experimental ponds and rivers. The box model and the above parameters were used to simulate the changes of pollutants in the experimental pond and the river water mathematically. The results were in good agreement with the actual results.