水库有机污染物生化需氧量-溶解氧和温度的耦合模型研究与应用

An Application Study of Connection Model Between Reservoir Organic Pollutant BOD5-DO and Temperature

摘要: 生化需氧量溶解氧(BOD5 DO)是反映水体有机污染程度的一个重要指标,而这些指标的浓度变化与水体温度有着密切关系。因此,研究三者之间的耦合数学模型,可以反映水体BOD5 DO迁移分布的规律。文章建立了三者垂向一维耦合数学模型,并给出了稳态情况下精确解的数学表达式且讨论了三者之间的关系,解决了求任意深度在温度影响下BOD5 DO的浓度值,同时还给出了耦合模型非稳态情况下的求解方法。

Abstract: The BOD 5- DO is an important index that reflect s the organic pollution extent of water, but the variations of the index have clos e relationship with water temperature. Therefore, to study their connection math ematics models is the key to reveal t