SOLAR DISINFECTION OF FLUID

摘要

A system for solar disinfection of fluid. One most preferred version of the system includes:
(a) A UVTC, made of a polyethylene laminate film material with a “cut and weld” process, shaped generally like a pillow with an approximately rectangular plan, providing:
a. A first compartment.b. A second compartment for holding fluid, with a port to fill and dispense, the second compartment proximate to the first compartment.(b) A Disinfection Monitor Module (“DMM”) located in the first compartment which:
a. Includes at least one sensor to measure radiation (e.g. solar UV light) intensity.b. Provides at least one user interface including:
i. “Start” and “stop” pushbuttons, switches or the like.ii. “Wait” and “Safe” visual indicators, such as LEDs.c. Contains a wireless communication interface.d. Operates according to a process that ensures sufficient cumulative exposure of the contained fluid to solar UV to achieve adequate solar disinfection.;Alternative embodiments may also include one or more additional sensors to detect additional characteristics, such as fluid properties including transmittance, turbidity, “combined transmittance,” and/or temperature.

主权项

1. A device to measure photodisnfection treatment of water by ultraviolet radiation from the sun, comprising:
a container for holding the water, the container being substantially transparent to the radiation, the container being further configured to enhance exposure of the water to the radiation by a geometric design that limits the cross-section of the water volume in a primary direction of incident radiation, the container comprising two or more laminates, wherein at least one laminate is substantially transparent to UV-A radiation, or UV-B radiation, or both UV-A and UV-B radiation, and at least one other laminate is not transparent to either UV-A radiation or UV-B radiation but provides structural robustness to the container, and further wherein at least one laminate is reflective such that incident UV radiation passing through the container is reflected back into the container, thereby increasing the rate of treatment.; an optical sensing component configured to estimate an intensity of radiation incident to a face of the optical sensing component and having wavelengths that correlate with the treatment, the optical sensing component being affixed to the container such that the face of the optical sensing component is oriented normal to a primary path of the radiation, the optical sensing component being disposed within the container so that the radiation incident upon the optical sensing component passes through the same material as the radiation incident upon the water; and a computing component that estimates treatment progress using optical sensor measurements over time, allows a user to initiate or terminate treatment process monitoring, and provides an indication of treatment progress.