QUAL2E模型在呼和浩特市水质模拟中的应用

呼和浩特市的地表水系由黄河干流和支流组成,以支流为主,整个地表水系统呈树枝状分布,水质污染严重。建立了呼和浩特市的河流水质模型,选用BOD5,CODMn作为模拟污染指标,给出模型关键参数的确定方法,应用QUAL2E模型进行河流水质模拟分析,检验QUAL2E模型参数。模拟结果表明,模型合理有效,能很好地描述河流的水质状况,可进一步为水环境规划提供有利工具和科学的参数依据。

Application of QUAL2E model to water quality simulation of Huhehaote City

The QUAL2E model is a comprehensive and wildly applied one-dimensional water quality model of rivers. The surface water system of Huhehaote City consists of the mainstream and tributaries of the Yellow River, and the tributaries make up the dominant part. The system is characterized by the dendriform structure, and its pollution is very serious, especially in the river section in the urban region, because it receives most of domestic and industrial wastewater. In this paper, a water quality model is established for rivers of Huhehaote City, and with BOD and COD taken as pollutants for simulation, a method for determination of the key parameters of the model is given. By simulation of river water quality with the QUAL2E model, the parameters of the model are calibrated, and the simulated results show that the model can well depict the river water quality, and further serves as an effective tool and provides a scientific base for water environmental planning.