Forced air injection system for rapid evaporation of wastewater

Patent metadata

Field	Value
Publication number	US-11220439-B2
Application number	US-202016901230-A
Country	US
Kind code	B2
Filing date	Jun 15, 2020
Priority date	Jul 31, 2019
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A wastewater evaporation system includes a plurality of tube sections configured to direct compressed air into the wastewater. A portion of the manifold defines an injection head configured to be at least partially submerged below a surface of the wastewater. The wastewater evaporation system also includes an air compressor configured to direct the compressed air to the manifold. The wastewater evaporation system also includes a buoy system coupled to the manifold. The buoy system includes a buoy configured to maintain a portion of the manifold above the surface of the wastewater.

First claim

What is claimed is:

1. A wastewater evaporation system comprising:
a manifold having a plurality of tube sections configured to direct compressed air into the wastewater, wherein a portion of the manifold defines an injection head configured to be at least partially submerged below a surface of wastewater, wherein the injection head includes an outlet;
an air compressor configured to direct the compressed air to the manifold; and
buoy system coupled to the manifold, wherein the buoy system includes a buoy configured to maintain a portion of the manifold above the surface of the wastewater, wherein the outlet is positioned to emit the compressed air into the wastewater outside of the manifold in a direction away from the buoy system.

2. The wastewater evaporation system of claim 1 , wherein the plurality of tube sections includes a main vertical tube section, a first horizontal tube section coupled to the main vertical tube section, and a second horizontal tube section coupled to the first horizontal tube section, wherein the outlet is disposed at an end of the second horizontal tube section.

3. The wastewater evaporation system of claim 1 , wherein the manifold includes a main vertical tube section, a first horizontal tube section coupled to a bottom of the main vertical tube section and extending in a first direction, a second horizontal tube section coupled to the bottom of the main vertical tube section and extending in a second, opposite direction, a third horizontal tube section coupled to an end of the first horizontal tube section and extending in a direction perpendicular to the first horizontal tube section, a fourth horizontal tube section coupled to the end of the first horizontal tube section and extending in a direction opposite to the direction of the third horizontal tube section, a fifth horizontal tube section coupled to an end of the second horizontal tube section and extending in a direction perpendicular to the second horizontal tube section, and a sixth horizontal tube section coupled to the end of the second horizontal tube section and extending in a direction opposite to the direction of the fifth horizontal tube section, wherein the outlet is a first outlet disposed at an end of the third horizontal tube section, wherein the manifold includes a second outlet disposed at an end of the fourth horizontal tube section, a third outlet disposed at an end of the fifth horizontal tube section, and a fourth outlet disposed at an end of the sixth horizontal tube section.

4. The wastewater evaporation system of claim 2 , wherein the first horizontal tube section has a first length and the second horizontal tube section has a second length, and wherein the first length is greater than the second length.

5. The wastewater evaporation system of claim 2 , wherein the main vertical tube section, the first horizontal tube section, and the second horizontal tube section are each comprised of stainless steel.

6. The wastewater evaporation system of claim 1 , further comprising a cabinet that houses the air compressor, wherein the cabinet includes an aperture, and wherein a flexible hose extends through the aperture and is coupled to both the air compressor and the manifold to facilitate movement of compressed air from the air compressor to the manifold.

7. The wastewater evaporation system of claim 1 , further comprising a cabinet that houses the air compressor, wherein the cabinet includes a chimney configured to draw air into the cabinet for the air compressor.

8. The wastewater evaporation system of claim 1 , further comprising a cabinet that houses the air compressor, wherein the cabinet includes a plurality of castors.

9. The wastewater evaporation system of claim 1 , wherein the buoy is a first buoy, and wherein the buoy system includes a second buoy.

10. The wastewater evaporation system of claim 9 , wherein the main vertical tube section extends between the first buoy and the second buoy, and wherein each of the first and second buoys is coupled to the main vertical tube section.

11. The wastewater evaporation system of claim 9 , wherein each of the first and second buoys is configured to support at least 200 pounds.

12. The wastewater evaporation system of claim 9 , wherein the first and second buoys are coupled together via a strut.

13. The wastewater evaporation system of claim 1 , wherein the buoy system includes a plurality of struts coupled to the buoy and to the manifold.

14. A method for evaporating wastewater, the method comprising:
providing a manifold having an injection head, and a buoy system coupled to the manifold;
positioning the injection head of the manifold at least partially beneath a surface of the wastewater; and
injecting air through an outlet of the injection head and into the wastewater outside of the manifold along a direction away from the buoy system.

15. The method of claim 14 , further comprising compressing the air prior to reaching the injection head, wherein compressing the air results in adiabatic heating of the air.

16. The method of claim 14 , wherein the outlet includes a first nozzle and a second nozzle, the method further comprising directing the air in a first direction through the first nozzle out of the injection head, and directing the air in a second direction through the second nozzle out of the injection head.

17. The method of claim 16 , wherein the first direction and the second direction are generally horizontal to the surface of the water.

18. The method of claim 16 , wherein the first nozzle is selected from a group consisting of a jet nozzle and a mister nozzle.

19. The method of claim 14 , further comprising positioning a second injection head beneath the surface of the wastewater, and injecting air through the second injection head and into the wastewater.

20. The method of claim 14 , further comprising directing the air from a cabinet through a hose to the injection head.

Assignees

• Lee Tae Woo
• Univ Arizona State

Inventors

• Lee Tae-Woo

Classifications

• B01D1/14 Primary

  with heated gases or vapours {or liquids} in contact with the liquid · CPC title

• C02F2201/002

  Construction details of the apparatus · CPC title

• B01D1/20

  Sprayers (in general B05B) · CPC title

• C02F1/10

  by direct contact with a particulate solid or with a fluid, as a heat transfer medium · CPC title

• C02F1/043 Primary

  Details · CPC title