Methods for treatment of organic matter in liquid

• US 20070199904A1
• Filed: 02/27/2006
• Published: 08/30/2007
• Est. Priority Date: 02/27/2006
• Status: Abandoned Application

• Current Assignee: Rheodyne, LLC
• Original Assignee: Rheodyne, LLC
• Inventors: Thompson, Jonathan
• Application Number:
  US11/363,975
• Publication Number:
  US 20070199904A1
• Time in Patent Office: Days
• US Class Current: 210/748.14
• CPC Class Codes: C02F 1/008 Control or steering systems not provided for elsewhere in subclass C02F
• CPC Class Codes: C02F 1/20 by degassing, i.e. liberation of dissolved gases degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D
• CPC Class Codes: C02F 1/32 with ultraviolet light
• CPC Class Codes: C02F 1/685 Devices for dosing the additives
• CPC Class Codes: C02F 1/70 by reduction C02F1/4676 takes precedence
• CPC Class Codes: C02F 1/722 Oxidation by peroxides
• CPC Class Codes: C02F 1/725 by catalytic oxidation
• CPC Class Codes: C02F 1/76 with halogens or compounds of halogens C02F1/4674 takes precedence
• CPC Class Codes: C02F 1/78 with ozone C02F1/4672 takes precedence
• CPC Class Codes: C02F 2101/30 Organic compounds
• CPC Class Codes: C02F 2201/3221 Lamps suspended above a water surface or pipe
• CPC Class Codes: C02F 2209/003 Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
• CPC Class Codes: C02F 2301/026 Spiral, helicoidal, radial
• CPC Class Codes: C02F 2301/063 Underpressure, vacuum
• CPC Class Codes: C02F 2305/10 Photocatalysts
• CPC Class Codes: C02F 9/00 Multistage treatment of water, waste water or sewage

Abstract

A method for treating organic matter in a liquid includes transporting the liquid through a gas-permeable, liquid-impermeable conveyance member and exposing the liquid to an organic matter treatment agent while the liquid is disposed in the conveyance member. The method further includes removing one or more product gases from the liquid through a wall of the conveyance member, with the one or more product gases being disposed in the liquid as a consequence of the treatment of the organic matter by the treatment agent.

Claims

1. A method for treating organic matter in a liquid, the method comprising:

(a) transporting said liquid through a pathway defined by a containment member comprising a substantially gas-permeable, liquid-impermeable material;

(b) introducing said liquid to an organic matter treatment agent while said liquid is disposed in said pathway; and

(c) removing one or more product gases from said liquid through a wall of said containment member, said one or more product gases being disposed in the liquid as a consequence of the treatment of the organic matter by said treatment agent.

2. A method as in claim 1 wherein said containment member is substantially transparent to ultraviolet radiation.

3. A method as in claim 1 wherein said containment member is tubing.

4. A method as in claim 1 wherein said gas-permeable, liquid-impermeable material is a copolymer of perfluoro-2,2-dimethyl-1,3-dioxole.

5. A method as in claim 1 wherein said organic matter treatment agent is selected from the group consisting of ultraviolet radiation, H₂, H₂O₂, O₂, ClO₂, ozone, and combinations thereof.

6. A method as in claim 1 wherein the removal of said one or more product gases from said liquid is accomplished by passing a sweep fluid about said containment member.

7. A method as in claim 1 wherein said containment member includes a photo catalyst material disposed therewith.

8. A method as in claim 1, including monitoring an operating condition with a detector and transmitting signals generated by said detector to a feedback control means for dynamically adjusting a process variable.

9. A method as in claim 8 wherein said operating condition is selected from the group consisting of organic matter concentration, product gas concentration, and combinations thereof.

10. A method as in claim 8 wherein said process variable is selected from the group consisting of a dispensing rate of said organic matter treatment agent, a vacuum set point, a sweep fluid flow rate, sweep fluid composition, ultraviolet radiation intensity, and combinations thereof.

11. A method for treating organic matter in a liquid, the method comprising:

(a) providing a treatment chamber having a liquid conveyance member passing therethrough, said liquid conveyance member comprising a substantially gas-permeable, liquid-impermeable material;

(b) transporting said liquid in said liquid conveyance member and through said treatment chamber;

(c) introducing said liquid to an organic matter treatment agent while said liquid is disposed in said treatment chamber; and

(d) removing one or more product gases from said liquid through a wall of said conveyance member, said one or more product gases being disposed in the liquid as a consequence of the treatment of the organic matter by said treatment agent.

12. A method as in claim 11 wherein said treatment chamber is at least partially evacuated.

13. A method as in claim 12, including pumping gas out from said treatment chamber so as to maintain a reduced pressure environment within said treatment chamber.

14. A method as in claim 11 wherein said conveyance member is substantially transparent to ultraviolet radiation.

15. A method as in claim 11 wherein said conveyance member is tubing.

16. A method as in claim 11 wherein said gas-permeable, liquid-impermeable material is a copolymer of perfluoro-2,2-dimethyl-1,3-dioxole.

17. A method as in claim 11 wherein said organic matter treatment agent is selected from the group consisting of ultraviolet radiation, H₂, H₂O₂, O₂, ClO₂, ozone, and combinations thereof.

18. A method as in claim 11 wherein respective first partial pressures of said one or more product gases in said first fluid are higher than corresponding ones of respective second partial pressures of said one or more product gases external to said conveyance member and within said treatment chamber.

19. A system for treating organic matter in a liquid, the system comprising:

(a) a chamber;

(b) inlet and outlet connections for admitting and discharging the liquid to be treated.

(c) a conveyance member for conducting the liquid through said chamber between said inlet and outlet connections, said conveyance member being formed of a gas-permeable, liquid-impermeable material; and

(d) an organic matter treatment agent dispensing device arranged for introducing the liquid to one or more organic matter treatment agents while disposed in said chamber, such that one or more product gases are developed in the liquid to respective first partial pressures as a result of the treatment of the organic matter by said one or more organic matter treatment agents, said chamber having respective second partial pressures of said one or more product gases that are lower than corresponding first partial pressures of such product gases, so as to remove the one or more product gases from said liquid through an outer wall of said conveyance member.

20. A system as in claim 19 wherein said chamber is a vacuum chamber that is adapted to be connected to a source for creating a vacuum in said chamber.