济南引黄水库藻类污染模拟及对策研究

The Simulation of Algae Pollution of Yellow River Reservoir in Jinan and Countermeasures

针对济南引黄水库的藻类污染问题,以鹊山水库为例,利用水流水质耦合模拟方法模拟了不同污染情况下水库中叶绿素a的浓度变化,分析了其特征并提出相应的防治对策。主要包括:在水库未达到高度富营养化时,不需停止供水,及时切断污水来源就可在6d内消除安全隐患;为应对可能发生的高度富营养化污染,水库检测叶绿素a的时间间隔不能超过20d;为建立健全城市供水安全体系,区内备用水源的供水能力不能低于7d,同时还应不断提升水库的预警能力和水厂的处理水平。

Due to the problem of algae pollution in Yellow River Reservoir of Jinan, the Queshan Reservoir is taken as an example, though the concentration variations of chlorophyll a in different pollution cases are simulated by using water quality coupling simula- tion method. The pollution characteristics are analyzed and management measures are put forward which include; when the eutrophi- cation of reservoir is notat a high level, the potential safety hazard can be eliminated within 6 days without stopping water supply if the wastewater sources can be cut off in time; in order to respond to a highly eutrophic pollution the time interval of testing chloro- phyll a can not exceed 20 days; establishing the security system for city water supply is necessary, for which the capacity of standby water source can not be less than 7 days, and the early warning capacity of the reservoir and the level of water treatment should be improved ceaselessly.