Waste and/or hazardous liquid containment and collection system

• US 10,640,398 B2
• Filed: 11/30/2018
• Issued: 05/05/2020
• Est. Priority Date: 02/06/2015
• Status: Active Grant

• Current Assignee: Albert Dechard
• Original Assignee: Albert Dechard
• Inventors: DeChard, Albert
• Primary Examiner(s): Royce, Liam
• Application Number:
  US16/205,462
• Publication Number:
  US 20190100446A1
• Time in Patent Office: 522 Days
• CPC Class Codes: B01D 17/0214 with removal of one of the phases
• CPC Class Codes: B01D 17/045 with coalescers
• CPC Class Codes: B08B 3/14 Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquidstreatment of water in general C02F
• CPC Class Codes: B60S 3/04 for exteriors of land vehicles B60S3/002, B60S3/004 take precedence; specially adapted for railway vehicles B60S3/006
• 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 1/042 Details thereof, e.g. valves or pumps
• CPC Class Codes: E03F 5/14 Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates for use in sewage purification plants or both in sewage purification plants or in sewer systems B01D, C02F ; gullies with sediment traps E03F5/04

Abstract

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

Claims

1. A method of cleaning a liquid comprising:

passing the liquid through holes in an upper layer, thereby filtering out particles from the liquid; and

after entering the holes, the liquid traversing a plate layer before reaching a drain in a lower layer, the lower layer being non-porous except for the drain, the plate layer comprising layers of runners arranged in a grid, the grid of each successive layer of the layers is offset at an angle with respect to the grid of a previous layer of the layers, thereby the liquid traversing the layers of the plate layer must traverse the grids of layers; and

wherein oils within the liquid accumulate within the grids of layers of the plate layer.

2. The method of claim 1, wherein the plate layer is made from textured geo-membranes made by co-extruding textured, high density polyethylene.

3. The method of claim 1, wherein the angle is 45 degrees.

4. The method of claim 1, wherein the lower layer is made of reinforced polypropylene.

5. The method of claim 1, wherein the lower layer is water-resistant paint.

6. The method of claim 1, further comprising the steps of:

periodically lifting the upper layer, thereby exposing the plate layer; and

vacuuming oils from the plate layer for disposal and/or recycling of the oils.

7. The method of claim 1, further comprising separating materials with a higher specific gravity than a water through a tank and weir system.

8. The method of claim 7, further comprising further filtering and aerating of the liquid before reusing the liquid.