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Article | REF: W5500 V1

Distribution water - Disinfection

Author: Jacques MOLES

Publication date: February 10, 2007 | Lire en français

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    9. Ultraviolet (UV)

    Note :

    see also [ , § 6].

    9.1 Introduction

    For several decades, a physical disinfection process has been used in drinking water production: ultraviolet radiation.

    The term UV is used for radiation in the electromagnetic spectrum with wavelengths between the visible and X-rays, i.e. from 100 to 400 nm.

    Within this spectrum, we also distinguish several families classified alphabetically by decreasing wavelength UV-A/UV-B/UV-C... (see figure 27 ).

    UV-C (200 to 280 nm) is the only germicide (destroying bacteria, viruses, fungi, algae...

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