Ultraviolet radiation treatment of unwanted microorganisms

Details Ultraviolet radiation treatment of unwanted microorganisms Ultraviolet radiation treatment of unwanted microorganisms

2007-05-15

2007-05-15

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

C210S196000, C210S259000, C210S748080, C250S438000

Reexamination Certificate

active

10512941

ABSTRACT:
A method and apparatus are described for killing or inhibiting growth of undesired microorganisms using ultraviolet radiation. A vortex turbulated flow of water is established within a vertical tube through which is transmitted ultraviolet radiation. In a preferred embodiment the dwell time of water within the tube may be varied to achieve optimum exposure. The method can be used to treat water alone or to treat objects suspended in water. In a particularly preferred embodiment freshly cut pieces of fruit may be treated.

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