Water decontamination apparatus using peroxide photolysis ionizer

• US 5,587,069 A
• Filed: 06/07/1995
• Issued: 12/24/1996
• Est. Priority Date: 08/25/1993
• Status: Expired due to Term

• Current Assignee: Wayne F. Downey Jr
• Original Assignee: Wayne F. Downey Jr
• Inventors: Downey, Wayne F. Jr.
• Primary Examiner(s): Hruskoci, Peter A.
• Application Number:
  US08/480,852
• Time in Patent Office: 566 Days
• Field of Search: 210/748, 210/758-760, 210/764, 210/192, 210/198.1, 210/202, 210/205, 210/199, 422/24, 422/186.12, 422/186.3
• US Class Current: 210/192
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2/12 Microwaves
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: B01J 19/123 Ultraviolet light
• CPC Class Codes: C02F 1/302 with microwaves
• CPC Class Codes: C02F 1/325 Irradiation devices or lamp constructions
• CPC Class Codes: C02F 1/722 Oxidation by peroxides
• CPC Class Codes: C02F 2201/3228 Units having reflectors, e.g. coatings, baffles, plates, mirrors

Abstract

Apparatus and a method are disclosed for decontaminating water, using an ionizing reactor. Water contaminated by organic compounds is introduced into a chamber in which it is concurrently irradiated by microwave and an ultraviolet source to activate it by photolysis. The water is then introduced to a hydroxyl reactor chamber. An oxidizing reagent, such as hydrogen peroxide, is irradiated by subjecting it to the UV source. The activated water and irradiated oxidizing reagent are then vectored to a locus at which they are mixed under continuing UV radiation from the source. The apparatus and method may be incorporated into a water treatment system employing existing contaminant extraction techniques, such as immiscible fluids separation and turbo-aspirated sparging.

Claims

1. For use in the treatment of water, apparatus comprising a first chamber, a water inlet port in fluid communication with said first chamber, a second chamber in fluid communication with said first chamber and having an outlet port, first orifice means in fluid communication with said second chamber for introducing oxidizing reagent into said second chamber, an ultraviolet radiation source operatively coupled to said first and second chambers, said ultraviolet radiation source being disposed to simultaneously irradiate water in said first chamber and water and reagent in said second chamber, and second orifice means for conducting and directing water from said first to said second chamber, said second orifice means directing the water toward a mixing zone, wherein the water and the reagent are mixed in said second chamber and irradiated by ultraviolet radiation from said radiation source.

2. Apparatus in accordance with claim 1, and a source of microwave energy operatively coupled to said first chamber, whereby water in said first chamber is subjected to microwave radiation while being subjected to ultraviolet radiation.

3. Apparatus in accordance with claim 1, wherein said first orifice means is arranged to direct reagent toward the mixing zone.

4. Apparatus in accordance with claim 3, and a source of microwave energy operatively coupled to said first chamber, whereby water in said first chamber is subjected to microwave radiation while being subjected to ultraviolet radiation.

5. Apparatus in accordance with claim 1, wherein said mixing zone is a focal zone, said second orifice means providing a plurality of water streams directed from different directions toward said focal zone.

6. Apparatus in accordance with claim 5, and said first orifice means providing a plurality of reagent streams directed form different directions toward said focal zone.

7. Apparatus in accordance with claim 1, wherein said first chamber is cylindrical and has a longitudinal axis, and said water inlet port is transversely and obliquely oriented with respect to said longitudinal axis, whereby water in said first chamber is directed into a helical path.

8. Apparatus in accordance with claim 7, wherein said second orifice means comprises a ringjet, said ringjet providing a plurality of water streams into said second chamber in the direction of said focal zone.

9. Apparatus in accordance with claim 8, wherein said first orifice means is operatively associated with said ringjet, said first orifice means providing a plurality of reagent streams directed from different directions toward said focal zone.

10. Apparatus in accordance with claim 1, and a light conductor operatively coupled to said ultraviolet radiation source, said conductor extending through said first chamber and into operative communication with said second chamber, said ultraviolet radiation source comprising a lamp and light conductors operatively interconnecting said lamp and said conduit means.

11. Apparatus in accordance with claim 10, wherein said mixing zone is a focal zone, said second orifice means comprising a ringjet providing a plurality of water streams from different directions toward said focal zone.

12. Apparatus in accordance with claim 10, and a source of microwave radiation operatively coupled to said first chamber and juxtaposed to said water inlet port, whereby water in said first chamber is subjected to microwave radiation while being irradiated by ultraviolet radiation.

13. Apparatus in accordance with claim 12, wherein said mixing zone is a focal zone, said second orifice means comprising a ringjet providing a plurality of water streams from different directions toward said focal zone.

14. Apparatus in accordance with claim 13, wherein said conductor comprises quartz tube means, and a reflector in said first chamber for enhancing the distribution of ultraviolet radiation in said chamber.

15. Apparatus in accordance with claim 14, wherein said reflector has a quadratic surface.

16. Apparatus in accordance with claim 15, wherein said reflector has a sapphire coating.

17. For use in the treatment of water, an ionizing reactor comprising a cylindrical body having a longitudinal axis and first and second coaxial chambers;

a water inlet port operatively associated with said first chamber and angularly offset from said longitudinal axis so that a water stream entering said first chamber from said inlet port assumes therein a helical path;

a water outlet in fluid communication with said second chamber;

light conducting means in light transmitting association with said first and second chambers;

means associated with said second chamber for introducing into said second chamber a stream of oxidizing reagent, a source of ultraviolet radiation operatively coupled to said light conducting means so that the application of ultraviolet radiation to said light conducting means simultaneously irradiates water in said first chamber and water and reagent in said second chamber;

a first orifice directing water from said first to said second chamber, said orifice providing a plurality of convergent water streams directed toward a focal zone, a second orifice operatively associated with said first orifice for injecting reagent into said second chamber toward said focal zone, whereby ultraviolet radiation transmitted to said second chamber irradiates water and reagent in said second chamber.

18. Reactor in accordance with claim 17, and a source of microwave energy operatively associated with said first chamber for subjecting water in said first chamber to microwave radiation.