济南城区屋面雨水水质模拟研究

目前，屋面雨水初期弃流量的确定缺少可行的理论方法，制约了屋面雨水利用的发展。通过取样检测，分析了屋面雨水中不同类型污染物的主要来源及浓度变化规律。利用济南大学西校区5场降雨的浊度实测数据估计了浊度累积—冲刷模型的参数，验证指出了模型使用范围。通过推导得出了浊度去除率与污染物冲刷指数和屋面径流系数的关系，为屋面雨水弃流量的确定提供了一种实用的计算方法。

Simulation study on quality of roof rainwater in urban area of Jinan

At present，there are no any feasible theoretical methods for determining the initial split-flow of the roof rainwater，which restricts the development of the utilization of the roof rainwater. Through the relevant sampling and testing，the main sources of various pollutants in the roof rainwater and the law of their concentration changes are analyzed herein. In accordance with the measured data of turbidity got from five rainfall processes occurred in the West Campus of University of Jinan，the parameters for the turbidity build-up and wash-off model are estimated，and then the application scope of the model is proposed with the relevant verification. Based on the corresponding deduction，the relationship between the turbidity removel rate and the pollutant wash-off index with the roof runoff coefficient is obtained，thus provides a practical calculation method for determining the split-flow of the roof rainwater.