【摘要】 《室外给水设计规范》（GB 50013—2006）对初滤水的排放提出了要求,但对于初滤水排放时间、排放方式等相关内容未提出具体要求,实际很多水厂未设计初滤水排放设施或未合理排放初滤水。以扬州某水厂V型滤池实际生产数据为例,对影响初滤水水质的因素进行分析,对初滤水排放过程中浊度、颗粒数、UV₂₅₄、COD_Mn和菌落总数等参数的变化规律进行了研究,并从经济和安全性的角度提出初滤水排放时间控制在2～5 min较为合适,滤池进水浊度较高时宜取上限。更多还原

【Abstract】 The Code for Design of Outdoor Water Supply Engineering （GB 50013-2006）regulates the removal of initial filtrated water,but it is lack of specific requirements on the discharge time or other design parameters of the initial filtrated water. In fact,the initial filtrated water discharge design or control devices are absent in many waterworks. Taking the actual production data of the V-type filter from a waterworks in Yangzhou as an example,the parameters affecting the quality of initial filtrated water were analyzed. The variations of turbidity,particle count,UV₂₅₄,COD_Mn and total bacterial colony number in the process of initial filtrated discharge were studied. From economy and safety perspectives,it was appropriate to control the discharge time of initial filtrated water in 2-5 minutes,and the upper limit should be taken when the turbidity of the inlet water of the filter was high.更多还原