水环境数学模型与人工湿地模拟

Research Advances in Water Environmental Mathematical Models and Constructed Wetland Simulation

水环境数学模型这种高效、经济、简便的模拟工具有了长足的发展,欧美国家开发出QUAL,MIKE,WASP,SWM,FEFLOW等多种水环境模拟软件,并在河流、湖泊、河口、海岸等水环境预测和水污染控制中得到广泛应用。人工湿地是一种借鉴天然湿地净化污水功能的生态技术措施,近年来在世界各地逐渐得到广泛研究与应用;人工湿地数学模型与数值模拟也正在成为一项重要的研究内容。由于人工湿地处理污水技术内在机理复杂,目前尚未形成通用的人工湿地数学模型与应用程序。鉴于水环境模拟软件的广泛成功应用及模型结构的开放性,利用成熟的水环境模型工具进行人工湿地数值模拟是一种有效途径;模拟应用时需结合湿地特性对模型程序进行适用性分析、并作必要的前后处理。

The water environmental mathematical models, as efficient, economical and convenient tools, have made a considerable progress in the water environment simulation. In Europe and America,many kinds of water environmental modeling softwares have been developed including QUAL, MIKE, WASP, SMS, FEFLOW, and so on. These models have been widely used for simu- lation of water environmental prediction and pollution control in rivers, lakes, estuaries and seashores. The constructed wetland is an ecological engineering technology for wastewater treatment, which is learned from natural wetlands. In recent years, the technology for wastewater treatment by constructed wetlands have been widely researched and applied worldwide. Mathematical models and numerical simulation have become important sections of the research for constructed wetlands. The general model and program specified for constructed wetlands have not been developed because of its complex reaction mechanisms for wastewater treatment. In the view of successful application and open structure of water environment simulation softwares, it could be used for modeling constructed wetlands. It is important to analyze the applicability of water environmental models be- fore using it to simulate constructed wetlands. The pre-treatment and post-processing for softwares are required.