摘要
为避免受污染的雨水径流影响受纳城市景观水体的水质,常对进入景观水体的原水进行自然流人工湿地处理,湿地面积往往采用水力停留时间经验法、表面负荷率方法和反应器理论方法等进行计算,这些方法中的关键设计参数如水力停留时间、表面负荷率和体积去除速率常数等一般凭借文献资料和经验获得,往往与实际工程不符。根据质量守衡定律对雨水处理自然流人工湿地面积计算的理论基础进行了分析,提出城市雨水处理利用系统中人工湿地的设计计算方法。
In order to avoid the polluted rain flow to inflood the city view water body to influence the water quality,on the surface flow constructed wetland is usually carried to treat the raw ainfall. The area calculating experience method includes the hydraulic retention time（HRT） method,the surface loading rate method and the reaction theory method etc. The key design parameters such as the hydraulic retention time,the surface loading rate and the volume reaction rate constant etc. are generally chosen according as the experience of designers and the literatures,usually not agree with the actual engineering. According to the material conservation principle,analyze theories foundation on the area calculating method on the surface flow constructed wetland for rainfall processing,put forward the area calculating method on the surface flow constructed wetland for rainfall processing.
基金
国家自然科学基金重点项目(50838005)
陕西省省教育厅资助项目(09JK549)
关键词
自然流人工湿地
雨水处理
面积
计算方法
surface flow constructed wetland
rainfall processing
area
calculating method
