first flush runoff 初期雨水径流
As the quality of first runoff is different, their best dosing is between 20mg/L and 30mg/L. the effect of coagulation is better if runoff is not precipitation, and the floc sedimentation time is about 10 min.
由于每次初期雨水径流的水质有所不同,其最佳投药量在20mg/L30mg/L之间,而且通过实验发现初期雨水不经过预沉,其混凝后矾花的沉降性能比较好,在10min内基本沉降完毕。
参考来源 - 城市小区雨水利用的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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