基于水动力–水质模型的玄武湖水治理研究

Research on Water Treatment of Xuanwu Lake Based on Hydrodynamic-Water Quality Model

摘要: 随着现代化进程的不断加快和经济的快速发展，许多环境问题越来越突出，人们日常生活、生产及生态用水需求愈来愈大，中国水资源人均可支配量少且分布不均。人工湖在城市建设和在社会发展进程中有发挥着十分重要的作用，但因其自我修复的能力太差又缺乏科学有效的管理和保护，导致许多人工湖的污染严重、水质差，这对人们的生活质量和可持续发展产生了严重影响。本文依托玄武湖水利风景区2021年度生态补偿项目及南京市玄武湖北湖东部疏浚及生态修复工程项目，以玄武湖为研究对象，对玄武湖的工程概况并通过选择pH值、溶解氧指数(DO)、生化需氧量指数(COD)、氨氮(NH3-N)、总磷指数(TP)和高猛酸盐指数等6个常见水质指标对其进行检测仿真研究，然后建立了玄武湖的二维水动力和水质模型，对玄武湖及相似湖泊的水管理与管理具有良好的参考价值，对水生态文明城市建设具有参考价值。

Abstract: With the continuous acceleration of modernization and rapid economic development, many environmental problems have become more and more prominent, people’s demand for water for daily life, production and ecology is getting greater and larger, and the per capita disposable amount of water resources in China is small and unevenly distributed. Artificial lakes play a very important role in urban construction and social development, but because of their poor self-healing ability and lack of scientific and effective management and protection, many artificial lakes have serious pollution and poor water quality, which has a serious impact on people’s quality of life and sustainable development. Relying on the 2021 ecological compensation project of Xuanwu Lake Water Conservancy Scenic Area and the dredging and ecological restoration project in the eastern part of Nanjing Xuanwu Lake North Lake, this paper takes Xuanwu Lake as the research object, and selects the engineering overview of Xuanwu Lake and selects six common water quality indicators, including pH, dissolved oxygen index (DO), biochemical oxygen demand index (COD), ammonia nitrogen (NH3-N), total phosphorus index (TP) and hyperviolent acid index, and then establishes a two-dimensional hydrodynamic and water quality model of Xuanwu Lake. It has good reference value for water management and management of Xuanwu Lake and similar lakes, and has reference value for the construction of water ecological civilization city.