Patent ID: 6951619

Claim:
A system for removing floating and non-floating particulate material from a stream of water, said system comprising: a separation tank for treating a flowing stream of water, said separation tank comprising an outer chamber having an interior surface having a first center, an inner chamber having an interior surface having a second center positioned within said outer chamber, the first center being displaced away from the second center, an inlet in said outer chamber adapted to receive the water to be treated, an outlet in said outer chamber adapted to discharge the treated water, said inner chamber having an inlet opening and an outlet opening; said inlet opening being aligned with said inlet whereby water entering said inlet passes through said inlet opening in a generally straight path to enter said inner chamber to strike the interior surface of the inner chamber generally at a tangent to the interior surface of said inner chamber and passes out of said inner chamber through said outlet opening to enter said outer chamber, and a baffle plate located intermediate said outlet opening in said inner chamber and said outlet in said outer chamber, said baffle plate having a baffle opening formed therein such that water passes to said outlet in said outer chamber through said baffle opening, said baffle opening being located at a predetermined vertical location within said separation tank, said inlet opening being sized to allow a maximum flow therethrough such that a high flow of water exceeding that maximum flow will be prevented from entering said inner chamber, said high flow of water thereafter being directed to pass through said baffle plate and to be discharged through said outlet in said outer chamber.