UV disinfection of water

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ID
147561
Uploaded by
WIPO GREEN Admin
Type
Technology
Source
User uploads
Published
2022/10/16
Updated
2024/08/19
Email Owner
Solvatten
Solvatten is a portable water treatment system for use by off-grid rural households. It uses ultraviolet (UV) light to disinfect water, while simultaneously using solar heat to warm it for domestic use. The technology consists of two 5-liter containers filled with water through an opening with a fabric filter. Units are then placed in direct sunlight to expose them to UV radiation. The combined heat (up to 75 °C) and radiation purifies the water of pathogenic materials in under 6 hours. UV light damages the microorganisms’ DNA of rendering them unable to reproduce. An indicator tells a user that the water has been purified and is hygienic and ready for household use.

Photo: © Solvatten
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