SYSTEMS AND METHODS FOR FLUID TREATMENT WITH HOMOGENEOUS DISTRIBUTION OF ULTRAVIOLET LIGHT

摘要

In various embodiments, a fluid is treated by flowing the fluid through a flow cell having (i) a fluid entry, (ii) a fluid exit, (iii) a treatment region disposed between the fluid entry and exit, and (iv) an interior surface reflective to ultraviolet (UV) light, and diffusively reflecting UV light emitted from one or more UV light sources to illuminate the treatment region substantially uniformly, thereby treating the fluid.

主权项

1. A fluid treatment system comprising:
a flow cell for containing a flowing fluid in an interior thereof, the flow cell having (i) a fluid entry, (ii) a fluid exit, (iii) a treatment region disposed between and fluidically coupled to the fluid entry and exit, and (iv) an interior surface diffusively reflective to ultraviolet (UV) light; a first end cap disposed at a first end of the flow cell, the first end cap having a sidewall diffusively reflective to UV light; a second end cap disposed at a second end of the flow cell opposite the first end of the flow cell, the second end cap having a sidewall diffusively reflective to UV light; a first window disposed between the flow cell and the first end cap, the first window (i) substantially preventing fluid flow into the first end cap and (ii) being substantially transparent to UV light; a second window disposed between the flow cell and the second end cap, the second window (i) substantially preventing fluid flow into the second end cap and (ii) being substantially transparent to UV light; one or more first UV light sources positioned to emit UV light into the first end cap, the sidewall of the first end cap being configured to diffusively reflect at least a portion of the UV light into the treatment region; and one or more second UV light sources positioned to emit UV light into the second end cap, the sidewall of the second end cap being configured to diffusively reflect at least a portion of the UV light into the treatment region.