METHOD OF AND APPARATUS FOR TREATING A GAS TO REMOVE FOREIGN CONSTITUENTS THEREFROM

• US 3,701,235 A
• Filed: 10/26/1970
• Issued: 10/31/1972
• Est. Priority Date: 10/26/1970
• Status: Expired due to Term

• Current Assignee: Boris Isaacson
• Original Assignee: Boris Isaacson
• Inventors: Isaacson, Boris
• Primary Examiner(s): Nozick, Bernard
• Application Number:
  US05/083,735
• Time in Patent Office: 736 Days
• Field of Search: 55/93,94,227,84,228,220,257,356,385,435,473 261/118,119,72,74 98/33,30,32 128/1B
• US Class Current: 95/196
• CPC Class Codes: B01D 47/00 Separating dispersed particles from gases, air or vapours by liquid as separating agent B01D45/10 takes precedence; fractionating columns or parts thereof B01D3/16

Abstract

A method of and apparatus for treating a gas to remove foreign constituents from the gas by inducing flow of the gas through and inflatable treatment chamber constructed of a thin plastic film in a manner such as to effect inflation of the chamber by gas pressure, and washing, drying, and or otherwise treating the gas during its flow through the chamber to remove the foreign constituents for the gas. Primary applications of the invention involve the treatment of atmospheric air to remove therefrom dust, smog, fog, and or other foreign constituents. In these primary applications, the inflatable treatment chamber may be installed on level ground, on building tops, in natural or artificial ravines, such as washes or storm drains, or in natural or artificial tunnels, such as sewer tunnels having openings to the atmosphere.

Claims

2. The apparatus defined by claim 1 wherein said air washing means comprise a plurality of nozzles adapted to discharge concentrated sprays of water across the flow path of the air through the chamber between said inlet and outlet, means for collecting said water in the bottom of said chamber, and pumping means for returning said water under pressure from said collecting means to said nozzles.

3. Gas treatment apparatus according to claim 1 wherein:

said gas is atmospheric air, said treatment chamber is contained within a ravine in the ground, such as a natural wash or artificial storm drain, and said inlet and outlet open to the atmosphere.

4. Gas treatment apparatus according to claim 1 wherein:

said gas is atmospheric air, said treatment chamber is contained within a subterranean tunnel, such as a sewer tunnel, having openings to the atmosphere, and said inlet and outlet communicate to the atmosphere through said openings.

5. The method of removing impurities from the air comprising the steps of:

providing an inflatable tunnel constructed of a thin resilient plastic film and having an inlet from the atmosphere into the interior of said tunnel and an outlet from the interior of said tunnel to the atmosphere, inducing a flow of air from the atmosphere containing impurities through said tunnel from said inlet to said outlet at a pressure sufficient to inflate said chamber, intimately mixing a liquid with said air flowing through said chamber to remove said impurities and discharging the air with the impurities thus removed through said outlet.

6. The method defined by claim 5 wherein said gas is washed by means of a plurality of nozzles adapted to direct concentrated sprays of water across the flow path of air through said tunnel.