| 摘要 |
A separable drainage system for removing sediment easily is provided to reduce a load for wastewater treatment and reduce contamination of river water due to the contaminants by smoothly draining water on a road surface during the precipitation, removing contaminants transferred from the road surface by draining, and removing contaminants contained in rainwater drained from the road surface in a desired manner. A separable drainage system(1) for removing sediment easily comprises: a body(10) which has a grating(11) installed on a top part thereof, in which a space for installing the rainwater settling and filtering frame is formed, and which has an outlet(12) formed on a bottom part thereof; a guiding plate(20) installed in an inner upper part of the body to guide rainwater flown into the body; a filtration unit(40) formed in a filtration passage(51), the filtration unit including a first filtration member(41) formed in the form of a basket and made of a mesh, and a second filtration member(42) having porosity; and a rainwater settling and filtering frame having the filtration passage integrally comprising the filtration unit inserted thereinto and a settling part(52) for settling alien substances flown into the rainwater settling and filtering frame, the rainwater settling and filtering frame being divided by partitions(54) to form a bypass passage(53), wherein a wall body(55) for dividing a space between the bypass passage and the filtration passage is lower than other wall bodies forming the filtration passage.
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