US 12,378,136 B2 · Flow-through filtration and waste separation device

Abstract

The invention is a flow-through flow-through filter that can separate raw water and/or sewage to filtered stream, fine particle stream and grit stream in one hydraulic device. For raw lake and/or canal water intake application, the flow-through filter is placed inside a chamber box that is mounted on a water intake rack structure or diversion canal. The invention filters debris and organisms to prevent biomes formation in pumps and waterlines that delivers raw water to a water treatment plant. The flow-through filter withdraws flows from a raw water body without taking defined sediment, floating debris and target aquatic biomes and eliminates the need of discharging remnants to a sewage system. For wastewater treatment, the flow-through filter is installed over a wet well after the headwork rack and may replace the grit removal, primary clarifier, and the fine screening. The flow-through filter requires a much smaller footprint of the area and/or enclosed building that requires smaller odor control. There is a substantial cost saving of using one device and replaces grit removal, primary basin, and fine screening.

Claims15

Dependent claims

A flow through filtration device comprising,

a tube comprising a plurality of perforations, the tube oriented horizontally, and the tube rotatable about a central longitudinal axis,
a first end of the tube comprising an inlet connected to an inflow adapter in fluid communication with a first location of an originating fluid source,
a second end of the tube comprising an outlet connected to an outflow reducer in fluid communication with a second location of the originating fluid source,
a spiral blade mounted to an inside face of the tube, the spiral blade oriented along a length of the tube from the first end to the second end and configured to impart angular velocity to fluid flowing through the tube towards the second end for discharge through the outlet, and
a chamber box located underneath at least a portion of the length of the tube, wherein fluid from the originating source flows into the first end and at least some of the fluid flows through the perforations into the chamber box and any remaining fluid flows out through the outlet.

2 more elements

A raw water treatment system comprising,

a body of raw water,
a tube comprising a plurality of perforations, the tube oriented horizontally, and the tube rotatable about a central longitudinal axis,
a first end of the tube comprising an inlet connected to an inflow adapter in fluid communication with a first location of the body of raw water,
a second end of the tube comprising an outlet connected to an outflow reducer in fluid communication with a second location of the body of raw water,
a spiral blade mounted to an inside face of the tube, the spiral blade oriented substantially along a length of the tube from the first end to the second end and configured to impart angular velocity to fluid flowing through the tube towards the second end for discharge through the outlet, and
a chamber box located underneath at least a portion of the length of the tube,
wherein fluid from the body of raw water flows into the first end and at least some of the fluid flows through the perforations into the chamber box, and any remaining fluid flows out through the outlet.

4 more elements

A wastewater treatment system comprising,

a filtration zone configured to receive a source of wastewater, the filtration zone configured to separate a source of wastewater into three distinct waste streams:
a fine particle stream, a grit stream, and a filtration zone effluent stream,
the filtration zone comprising,
a tube comprising a plurality of perforations, the tube oriented horizontally, and the tube rotatable about a central longitudinal axis,
a first end of the tube comprising an inlet in fluid communication with the source of wastewater,
a second end of the tube comprising an outlet in fluid communication with the source of the wastewater,
a spiral blade mounted to an inside face of the tube, the spiral blade oriented along a length of the tube from the first end to the second end and configured to impart angular velocity to fluid flowing through the tube towards the second end for discharge through the outlet,
a chamber box located underneath at least a portion of the length of the tube, and
a lower chute running lengthwise inside the tube, the lower chute comprising a convex cross section and comprising a slope between the first end and the second end,
wherein fluid from the source flows into the first end and at least some of the fluid flows through the perforations into the chamber box, and any remaining fluid flows out through the outlet.

7 more elements

Dependencies are inferred from the claim text.

Flow-through filtration and waste separation device

Life of this patent

Flow-through filtration and waste separation device

Life of this patent

Abstract

Claims15