About Hydrodynamic Separators
General Information Performance Data Water Quality Treatment Process Design


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Water Quality Treatment Process

1. Runoff flows into the HDS device.

2. Typically, water quality treatment is achieved through a variety of sedimentation processes that involve the physical settling of particles.

3. Water typically leaves the system by flowing under a baffle in front of the outlet. Trash and other floatables remain in the chamber, a process referred to as “indirect filtration.”

4. If the HDS is part of a treatment train, the water is routed to the next component of the system. Otherwise it is channeled to a stormdrain system or discharged to the surface.