Periodic uvc dosing
AssigneeCrystal IS, Inc.
InventorsChristopher Scully, Amy Wilson Miller, Richard M. Mariita, Leo J. Schowalter
Life of this patent
Estimating the term…
Abstract
A photoreactor for disinfecting water includes at least one wall defining a chamber configured to contain fluid. The reactor also includes an inlet through which water flows into the chamber, and an outlet through which water exits the chamber. The reactor also includes a UVC LED. The LED is configured power on for an active duration, and power off for an inactive duration. The active duration and the inactive duration define a period. The reactor also includes a controller configured to set a duty cycle for the period, where the duty cycle is a ratio of the active duration to the period. The duty cycle is less than or equal to about 1:100.
Claims20
A photoreactor for disinfecting water, the photoreactor comprising:
- at least one wall defining a chamber configured to contain fluid;
- an inlet through which water flows into the chamber;
- an outlet through which water exits the chamber;
- a UVC LED configured to be powered on for an active duration, and powered off for an inactive duration, the active duration and the inactive duration defining a period;
- a controller configured to set a duty cycle for the period, wherein the duty cycle is a ratio of the active duration to the period, wherein the duty cycle is less than or equal to about 1:100.
A method of periodically dosing a UVC reactor, the method comprising:
- providing a photoreactor for disinfecting water, the photoreactor having:
- at least one wall defining a chamber configured to contain fluid,
- an inlet through which fluid flows into the chamber,
- an outlet through which fluid exits the chamber, and
- a UVC LED configured to be powered on for an active duration,
- and powered off for a prescribed inactive duration, the active duration and the prescribed inactive duration defining a period;
- activating the UVC LED for a first active duration;
- activating the UVC LED for a second active duration after the prescribed inactive duration.
A method of dosing UVC radiation within a fluid reactor, the method comprising:
- providing a fluid reactor having at least one UVC LED and a main photoreactor zone configured to house fluid, the main photoreactor zone being formed from material that is UVC diffusively reflective and UVC transmissive;
- periodically dosing the main photoreactor zone with UVC radiation using the at least one UVC LED for a LED active duration as a function of an LED inactive duration.
Dependencies are inferred from the claim text.