Device for dispersing foul gaseous effluent emissions at the source

Patent metadata

Field	Value
Publication number	US-10092671-B2
Application number	US-201515118007-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Feb 14, 2014
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A device for dispersing foul gaseous effluent emissions released diffusely by sources located close to the ground, in particular by wastewater treatment ponds ( 10, 11, 12 ), includes: at least two auxiliary air or gas injectors ( 5 a 1, 5 b 1; 5 a 2, 5 b 2; 5 a 3, 5 b 3 ) oriented upwards and installed in opposing zones on the periphery of each foul gaseous effluent source, such as to disperse the gaseous effluents; separate supply elements ( 8.1, 13 a 1, 13 b 1; 8.2, 13 a 2, 13 b 2; 8.3, 13 a 3, 13 b 3 ) for the injectors; and wind-direction-sensitive control elements for ensuring that at least the injector(s) best located to disperse and/or lift the gaseous effluent plume are supplied.

First claim

The invention claimed is:

1. A device for dispersing foul gaseous effluent emissions at the source, comprising:
a foul gaseous effluent source tank,
at least two auxiliary gas or air injectors directed upward, installed at the periphery of the foul gaseous effluent source tank, in opposite zones, so as to disperse the foul gaseous effluents,
means for supplying the injectors, each injector being supplied by a separate supply means,
and control means sensitive to the wind direction arranged in order to select the start-up of the injector(s) best located, depending on the wind direction, for dispersing and/or raising the gaseous effluent plume.

2. The device as claimed in claim 1 , further comprising odor detectors distributed at the periphery of a plant comprising at least one source of foul odors, these detectors being arranged in order to communicate the results of their measurements to a central measurement acquisition station (B) connected to a control unit (A) which, depending on the results of the measurements, actuates at least one fan in order to supply at least one appropriate section of injectors.

3. The device as claimed in claim 2 , wherein each appropriate section of injectors is supplied by an air manifold equipped with a motorized control valve, the manifold being connected to the discharge of a fan.

4. The device as claimed in claim 2 , wherein the control unit (A) is driven by management and control software programmed to take into consideration the dispersion parameters and the odor unit measurements in real time.

5. The device as claimed in claim 4 , wherein the control unit (A) is driven by simulation software that predicts the natural dispersion of the odor plume, which is integrated for a preventive action of automatically controlling the dispersion device by induction.

6. The device as claimed in claim 2 , wherein the control unit (A) is driven by simulation software that predicts the natural dispersion of the odor plume, which is integrated for a preventive action of automatically controlling the dispersion device by induction.

7. The device as claimed in claim 2 , wherein the injectors are located close to the upper edge of the source of odors.

8. The device as claimed in claim 2 , further comprising at least three sections of injectors installed at the periphery of one, or of each, foul odor source, each section comprising at least one injector.

9. The device as claimed in claim 1 , wherein the injectors are located close to the upper edge of the source of odors.

10. The device as claimed in claim 1 , further comprising at least three sections of injectors installed at the periphery of one, or of each, foul odor source, each section comprising at least one injector.

11. The device as claimed in claim 1 , wherein the injectors have an adjustable orientation.

12. The device as claimed in claim 1 , wherein the means for supplying the injectors and the control means are provided to ensure a pressure that varies as a function of the atmospheric conditions and of odor unit measurements.

13. The device as claimed in claim 1 , further comprising a means for injecting “masking” products into the air that supplies the injectors.

14. The device as claimed in claim 1 , wherein the means for supplying the injectors comprise at least one adjustable-speed fan, and at least one connection pipe between the outlet of the fan and a manifold of the injector(s).

15. The device as claimed in claim 14 , wherein the means for supplying the injector(s) are adjustable in order to make it possible to regulate the pressure and the flow rate of auxiliary gas or air sent to the injectors depending on the atmospheric conditions of the moment, and the properties of the gas plume, the supply means being shut down when the natural dispersion is sufficient.

Assignees

• Suez Groupe

Inventors

• Duong Frederic
• Kelly Robert
• Chantre Patrick

Classifications

• F23L2700/001

  Installations for increasing draught in chimneys · CPC title

• A61L2209/111

  Sensor means, e.g. motion, brightness, scent, contaminant sensors · CPC title

• A61L9/00

  Disinfection, sterilisation or deodorisation of air (body deodorants A61Q15/00; purifying air by respirators A62B, A62D9/00; separating dispersed particles from gases or vapours B01D45/00 - B01D51/00, B03C3/00; chemical or biological purification of waste gases B01D53/34; production of ozone C01B13/10; air-conditioning systems incorporating sterilisation F24F3/16, F24F8/20) · CPC title

• B01F2215/009

  Operations & Transport · mapped topic

• B05B12/18

  using fluids, e.g. gas streams · CPC title