Waste and/or hazardous liquid containment and collection system

• US 10,174,493 B2
• Filed: 03/09/2017
• Issued: 01/08/2019
• Est. Priority Date: 02/06/2015
• Status: Active Grant

• Current Assignee: Albert Dechard
• Original Assignee: Albert Dechard
• Inventors: DeChard, Albert
• Primary Examiner(s): Mellon, David C
• Assistant Examiner(s): Royce, Liam
• Application Number:
  US15/454,575
• Publication Number:
  US 20170183859A1
• Time in Patent Office: 670 Days
• CPC Class Codes: B01D 17/0208 by sedimentation
• CPC Class Codes: B01D 17/0214 with removal of one of the phases
• CPC Class Codes: B01D 17/045 with coalescers
• CPC Class Codes: B01D 17/10 with stationary filtering elements
• CPC Class Codes: B08B 17/025 Prevention of fouling with liquids by means of devices for containing or collecting said liquids
• CPC Class Codes: B60S 3/044 Hand-held cleaning arrangements with liquid or gas distributing means B60S3/045 takes precedence
• CPC Class Codes: C02F 1/001 Processes for the treatment of water whereby the filtration technique is of importance C02F1/44 takes precedence; construction of filters in general B01D24/00 - B01D41/00
• CPC Class Codes: C02F 1/40 Devices for separating or removing fatty or oily substances or similar floating material cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16
• CPC Class Codes: C02F 1/74 with air aeration of stretches of water C02F7/00
• CPC Class Codes: C02F 2001/007 Processes including a sedimentation step
• CPC Class Codes: C02F 2101/32 Hydrocarbons, e.g. oil
• CPC Class Codes: C02F 2103/44 from vehicle washing facilities
• CPC Class Codes: E03B 1/041 Greywater supply systems
• CPC Class Codes: E03B 1/044 Switch valves in waste pipes
• CPC Class Codes: E03F 5/04 Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
• CPC Class Codes: E03F 5/0405 with an odour seal

Abstract

A liquid cleaning system rests on a surface having a non-porous material covering and a drain. A lower plate layer and an upper plate layer each have runners arranged in a grid. The lower plate layer rests upon the surface and the upper plate layer rests upon the lower plate layer offset at an angle with respect to the grid of the lower plate layer. An upper layer covers the upper plate layer and has a plurality of holes for the passage of fluids into the liquid cleaning system. As liquid enters the liquid cleaning system through the holes, the liquid traverses the grid of the lower plate layer and the grid of the upper plate layer flowing towards the drain, and contaminants within the liquid collect within the grid of the lower plate layer and the grid of the upper plate layer.

Claims

1. A liquid cleaning system resting on a surface, the surface having a drain, the liquid cleaning system comprising:

a non-porous material covering the surface except for the drain;

a lower plate layer and an upper plate layer comprising runners arranged in a grid;

the lower plate layer resting upon the non-porous material;

the upper plate layer resting upon the lower plate layer, the grid of the upper plate layer offset at an angle with respect to the grid of the lower plate layer; and

an upper layer covering the upper plate layer, the upper layer having a plurality of holes for the passage of the liquid into the upper plate layer and lower plate layer;

wherein as the liquid that has entered the liquid cleaning system through the plurality of holes traverses the grid of the lower plate layer and the grid of the upper plate layer flows towards the drain, contaminants within the liquid collect within the grid of the lower plate layer and the grid of the upper plate layer.

2. The liquid cleaning system of claim 1, in which the liquid comprises water with pollutants and oils, the oils having a lower specific gravity than water get trapped in the upper layer, and the pollutants having a higher specific gravity than water get trapped in the lower plate layers and the water exits through the drain.

3. The liquid cleaning system of claim 2, further comprising a separation tank fluidly connected to the drain, the separation tank further removing some of the pollutants and some of the oils that have higher or lower specific gravities than the water through a weir system.

4. The liquid cleaning system of claim 1, further comprising walls surrounding the lower plate layer, the upper plate layer and the upper layer.

5. The liquid cleaning system of claim 1, wherein the lower plate layer and the upper plate layer are textured geo-membranes made by co-extruding textured, high density polyethylene.

6. The liquid cleaning system of claim 1, wherein the non-porous material is a water-resistant coating.

7. The liquid cleaning system of claim 1, wherein the non-porous material is a layer of reinforced polypropylene.

8. A liquid cleaning system comprising:

a lower layer that is substantially non-porous except for a drain;

a lower plate layer and an upper plate layer comprising runners arranged in a grid;

the lower plate layer resting upon the lower layer;

the upper plate layer resting upon the lower plate layer, such that the grid of the upper plate layer is offset at an angle with respect to the grid of the lower plate layer;

an upper layer covering the upper plate layer, the upper layer having a plurality of holes for the passage of fluids; and

walls surrounding the lower plate layer, the upper plate layer, and the upper layer.

9. The liquid cleaning system of claim 8, wherein the lower plate layer and the upper plate layer are textured geo-membranes made by co-extruding textured, high density polyethylene.

10. The liquid cleaning system of claim 8, wherein the lower layer is made of reinforced polypropylene.

11. The liquid cleaning system of claim 8, wherein the lower layer is a water resistant coating.

12. The liquid cleaning system of claim 8, further comprising a separation tank that receives a water, remaining oils, and pollutants from the drain and further removes some of the pollutants and some of the remaining oils that have higher or lower specific gravities than the water through a weir system.