海河蓄滞洪区洪水资源利用的水污染风险分析

Water pollution risk analysis on flood resource utilization in Haihe River detention areas

海河蓄滞洪区的洪水资源利用是提高流域水资源利用效率,缓解水资源供需矛盾的措施之一。但由于海河流域水污染严重,洪水资源利用时存在水污染风险,须在利用过程中谨慎考虑。本文分析了海河大黄浦洼蓄滞洪区洪水资源利用的水源水质问题,应用建立的蓄滞洪区水质预报模型,计算分析了各种分洪条件下的水质情景,阐述了洪水资源利用时水污染问题的不确定性以及相应的水污染风险,并结合大黄浦洼的实际水环境条件,提出了减缓水污染风险的措施建议。

In the Haihe River watershed, flood resource utilization is becoming one of the important measures to alleviate the water demand-supply conflict, because of the extremely shortage of water resources in the basin. However, it must take cautions against water pollution risk in flood resource utilization. In this paper the source water quality is analyzed for a flood detention area named Dahuangpuwa. A water quality model is applied to simulate the water quality condition for different flooding cases. Based on the research and the real water environmental conditions of the basin, the authors discussed the water pollution uncertainty problem and the relevant water pollution risk. Suggestions of the risk alleviation were carried out.