FOOD WASTE COLLECTOR SYSTEM WITH TREATMENT OF RECIRCULATING WATER TO REDUCE BACTERIA LEVELS

• US 20150251921A1
• Filed: 03/04/2015
• Published: 09/10/2015
• Est. Priority Date: 03/10/2014
• Status: Abandoned Application

• Current Assignee: Emerson Electric Company
• Original Assignee: Emerson Electric Company
• Inventors: SOBANSKI, William, BERGER, Thomas R.
• Application Number:
  US14/637,497
• Publication Number:
  US 20150251921A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61L 2/088 using a photocatalyst or photosensitiser
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: C02F 1/008 Control or steering systems not provided for elsewhere in subclass C02F
• CPC Class Codes: C02F 1/32 with ultraviolet light
• CPC Class Codes: C02F 1/325 Irradiation devices or lamp constructions
• CPC Class Codes: C02F 1/725 by catalytic oxidation
• CPC Class Codes: C02F 1/78 with ozone C02F1/4672 takes precedence
• CPC Class Codes: C02F 2103/002 Grey water, e.g. from clothes washers, showers or dishwashers
• CPC Class Codes: C02F 2201/3227 Units with two or more lamps
• CPC Class Codes: C02F 2209/005 Processes using a programmable logic controller [PLC]
• CPC Class Codes: C02F 2301/046 Recirculation with an external loop
• CPC Class Codes: C02F 2303/04 Disinfection
• CPC Class Codes: C02F 2305/04 Surfactants, used as part of a formulation or alone
• CPC Class Codes: C02F 2305/10 Photocatalysts
• CPC Class Codes: E03C 1/2665 Disintegrating apparatus specially adapted for installation in waste pipes or outlets disintegrating apparatus per se B02C

Abstract

A food waste collector system includes a tank and a pump that recirculates water by pumping it from the tank and back into the tank, and a bacteria treatment method and system that treats the recirculating water to reduce bacteria. In an aspect, the bacteria treatment includes irradiation of recirculating water by ultraviolet light to sterilize bacteria. In an aspect, the bacteria treatment includes killing bacteria in the recirculating water with oxidizers. In an aspect, the bacteria treatment includes killing bacteria in the recirculating water with ozone. In an aspect, the food waste collector system includes an ultraviolet (UV) tube holder in which one or more UV tubes are disposed and through which the recirculating water is pumped. In an aspect, the UV tube holder has an inner wall surface with a catalytic surface coating that in conjunction with the UV light provides an oxidation process that generates the oxidizers.

Claims

1. A food waste collector system, comprising:

a tank;

a pump that recirculates water by pumping it from the tank and back into the tank; and

a bacteria treatment system that treats the recirculating water to reduce bacteria levels in the recirculating water.

2. The food waste collector system of claim 1, wherein the bacteria treatment system includes an ultraviolet tube holder in which at least one ultraviolet tube is disposed, the pump having an inlet coupled to an outlet of the tank and an outlet coupled to an inlet of the ultraviolet tube holder, the pump recirculating water from the tank by pumping it through the ultraviolet tube holder where it is irradiated with ultraviolet light from the ultraviolet tube to sterilize bacteria in the water and the water is then discharged from the ultraviolet tube holder to flow into a top of the tank.

3. The food waste collector system of claim 2 wherein the ultraviolet tube holder includes an inner wall with a catalytic surface that in conjunction with the ultraviolet light from the ultraviolet tube provides an oxidation process that generates oxidizers that kill the bacteria in the water.

4. The food waste collector system of claim 3 including a controllable valve coupled to a source of fresh water and controlled by a controller to cycle open and closed to inject fresh water into the water being recirculated.

5. The food waste collector system of claim 2 including a spout coupled to an outlet of the ultraviolet tube holder and through which water is discharged into the tank wherein the spout is a waterfall type spout that provides a flat, wide discharge stream of water.

6. The food waste collector system of claim 2 wherein the bacteria treatment system further includes an ozone generator that generates ozone that is injected in to the recirculating water to kill bacteria in the recirculating water.

7. The food waste collector system of claim 6 wherein the ozone generator injects the ozone into water in the tank.

8. The food waste collector system of claim 6 including a controllable valve coupled to a source of fresh water and controlled by a controller to cycle open and closed to inject fresh water into the water being recirculated.

9. The food waste collector system of claim 1 wherein the bacteria treatment system includes an ozone generator that generates ozone that is injected in to the recirculating water to kill bacteria in the recirculating water.

10. The food waste collector system of claim 9 wherein the ozone generator injects the ozone into water in the tank.

11. The food waste collector system of claim 9 including a controllable valve coupled to a source of fresh water and controlled by a controller to cycle open and closed to inject fresh water into the water being recirculated.

12. The food waste collector system of claim 1 including a controllable valve coupled to a source of fresh water and controlled by a controller to cycle open and closed to inject fresh water into the water being recirculated.

13. The food waste collector system of claim 1 and further including a soap injector that injects soap into the recirculating water.

14. The food waste collector system of claim 1 and further including a perforated container removably receivable in the tank.

15. In a food waste collector system having a tank, a pump that recirculates water by pumping it from the tank and back into the tank, a method for treating the water being recirculated comprising:

treating the recirculating water to reduce bacteria in the recirculating water.

16. The method of claim 15 wherein treating the recirculating water includes pumping the water being recirculated through an ultraviolet tube holder that holds at least one ultraviolet tube and irradiating the water passing through the ultraviolet tube holder with ultraviolet light from the ultraviolet tube to sterilize bacteria in the water.

17. The method of claim 16 including periodically injecting fresh water into the recirculating water with a controllable valve coupled to a source of fresh water by cycling the controllable valve open and closed with a controller coupled to the controllable valve.

18. The method of claim 16 and further including treating the recirculating water by killing bacteria in the recirculating water by the ultraviolet light in conjunction with a catalytic surface coating of the ultraviolet tube holder providing an oxidation process that generates oxidizers that kill the bacteria in the recirculating water.

19. The method of claim 18 and further including treating the recirculating water by injecting ozone into the recirculating water to kill bacteria in the recirculating water.

20. The method of claim 19 including periodically injecting fresh water into the recirculating water with a controllable valve coupled to a source of fresh water by cycling the controllable valve open and closed with a controller coupled to the controllable valve.

21. The method of claim 15 wherein treating the recirculating water includes injecting ozone into the recirculating water to kill bacteria in the recirculating water.

22. The method of claim 21 including periodically injecting fresh water into the recirculating water with a controllable valve coupled to a source of fresh water by cycling the controllable valve open and closed with a controller coupled to the controllable valve.