快速渗滤土地处理系统对城市生活污水中N、P去除的优化研究

Optimization of Nitrogen and Phosphorus Removal from Municipal Sewage by Rapid Infiltration Land Treatment System

为了探索城市生活污水中N、P去除,在实验室内采用混合土为介质,以均匀设计原理为指导,进行模拟人工快速渗滤系统对城市生活污水中N、P的去除。研究不同介质配比,淹水时间,湿干比3种因素组合对污水处理的最优运行模式。试验结果表明:通过选取混合土为介质及以上3个参数是可行的;通过回归统计得出最优模型。

In arder to study Nitrogen and phosphorus removal from municipal sewage,simulation of artificial rapid infiltration land treatment system for nitrogen and phosphorus removal by using mixture medium in lab is made.The optimum operation mode is inrestigated for medium composition,flooding period and dry/wet ratio.It is shown that it is feasible to select soil/quarta sand,flooding period and dry/wet ratio as design parameter,and then to get optimum model through regressino statistics.