Disseny d'un sistema potabilitzador d'aigua per rajos ultraviolats
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Date
2020-07
Authors
Bover Pol, Llorenç
Other authors
Casanovas Salas, Jordi
Universitat de Lleida. Escola Politècnica Superior
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Abstract
The main purpose of this project is to design an Individual Water Purification Device
(IWPD) with humanitarian character. Keeping in mind that, as scientists, it would be our
responsibility to use technology to help our societies, the project aims to contribute to
solve one of the most important global problems: the water scarcity, in particular in less
developed societies.
The Project has been developed in four phases. Starting from a previous personal
project, named Emundans Radicis, on each subsequent stage the complexity and cost of
the manufacturing process have been reduced, while increasing the self-life of the device
and the application fields.
As a result, the project consists in a water sterilizer system based on the ultraviolet light
(UV) technology. The UV light attack on the DNA of the microorganisms has been proven
to be a simple and highly effective germicide tool. On the other hand, this technology
does not employ chemical products; neither presents any toxicity nor generates
unwanted residues.
The designed device uses an UV LED of 100W assembled in a tank of 160L. Calculations
have been performed to determine both the sedimentation time and the radiation
exposure time necessary to meet sanitation requirements. It should be noted that the
device can work with a solar panel, has a simple operation mode, is easy to repair,
adaptable to different situations and has a low economic cost.