Abstract: An apparatus for separating a liquid from other substances comprises a first chamber; a second chamber; an inlet connected to the first chamber; an outlet connected to the second chamber; a bypass conduit passing from the inlet, through the first chamber, and into the second chamber; a passage between the first and second chambers and configured to allow the liquid to flow from the first chamber to the second chamber, the passage below the bypass conduit; wherein the bypass conduit comprises a first opening within the first chamber and a second opening in the second chamber; and wherein the bypass conduit is angled relative to a horizontal so that a lowest region of the second opening is higher, in relation to the horizontal, than a highest region of the first opening, such that liquid flow into the inlet, less than a treatment flow rate, flows entirely through the first opening.

Abstract: An apparatus for separating a liquid from other substances comprises a first chamber; a second chamber; an inlet connected to the first chamber; an outlet connected to the second chamber; a bypass conduit passing from the inlet, through the first chamber, and into the second chamber; a passage between the first and second chambers and configured to allow the liquid to flow from the first chamber to the second chamber, the passage below the bypass conduit; wherein the bypass conduit comprises a first opening within the first chamber and a second opening in the second chamber; and wherein the bypass conduit is angled relative to a horizontal so that a lowest region of the second opening is higher, in relation to the horizontal, than a highest region of the first opening, such that liquid flow into the inlet, less than a treatment flow rate, flows entirely through the first opening.

Abstract: An apparatus for separating floating and non-floating particulates from drain water wherein said apparatus includes a first chamber for collecting non-floating particulates, a second chamber for collecting floating particulates, and a third chamber through which treated drain water can be discharged from the apparatus. An inlet pipe for introducing drain water into the first chamber is provided tangential to the first chamber to provide a vortex flow of drain water into said first chamber. An outlet pipe providing flow of drain water from the first chamber to the second chamber has an inlet at the vortex of drain water flow in the first chamber and an outlet that is spaced a predetermined distance from the floor of the chamber.

Abstract: An apparatus for separating floating and non-floating particulates from drain water wherein said apparatus includes a first chamber for collecting non-floating particulates, a second chamber for collecting floating particulates, and a third chamber through which treated drain water can be discharged from the apparatus. An inlet pipe for introducing drain water into the first chamber is provided tangential to the first chamber to provide a vortex flow of drain water into said first chamber. An outlet pipe providing flow of drain water from the first chamber to the second chamber has an inlet at the vortex of drain water flow in the first chamber and an outlet that is spaced a predetermined distance from the floor of the chamber.

Abstract: An apparatus for separating floating and non-floating particulates from drain water wherein the apparatus includes a first chamber for collecting non-floating particulates, a second chamber for collecting floating particulates, and a third chamber through which treated drain water can be discharged from the apparatus. An inlet pipe for introducing drain water into the first chamber is provided tangential to the first chamber to provide a vortex flow of drain water into the first chamber, and an outlet pipe providing flow of drain water from the first chamber to the second chamber has an inlet at the vortex of drain water flow in the first chamber.