| 摘要 |
A hydrodynamic gravitational separator and an attending drainwater filtration section positionable within a horizontal flow passage of a drainage system utilizes a circular-walled collection cavity into which drainwater is directed so that a swirling motion is imparted to the drainwater collected within the collection cavity. Furthermore, a baffle plate is supported within the collection cavity adjacent the exit opening thereof to isolate the exit opening from the swirling motion of the drainwater collected within the cavity. The filtration section includes a filter disposed downstream of the exit opening of the collection cavity so that drainwater which exits the collection cavity is subsequently routed through the filter.
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