earticle

영어

In this study, a new equipment which is based on rapid coagulation and sedimentation method was developed and evaluated with its performance. Its equipment was named as HCIS(High-rate Coagulation & Inclined Settler), which was composed of coagulation, flocculation, and inclined settling, and was tested for the removal efficiency of pollutant and floc size.Results of experimental study on HCIS shows that it removes 86~96% of colloidal materials on an average. From the distribution of floc size of sample water, turbidity became from 10 to 20 times bigger than size of raw sample water after coagulation and those flocs settle well on the inclined settling tank. T-P and SS removal rate were slight higher than those of existing other equipments. It was concluded that HCIS was showed the pssibility to make use of the device treating nonpoint pollutant such as road storm runoff.