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8. Ozone
8.1 Introduction
Ozone is the most powerful oxidant available for water treatment, and has long been considered the best disinfectant.
Figure 18 shows the relative positions of various oxidizing/reducing pairs; thanks to its high oxidation potential, we quickly discovered the many facets of this reagent, which enables :
improve the coagulation of certain waters;
oxidize dissolved salts (Fe-Mn);
aerate the water ;
eliminate molecules that generate color and taste/odors;
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Ozone
Ultraviolet (UV)
Current legislation on disinfection
1 Microbiology
WHO (World Health Organization) recommendations for Europe (see tables 4 and 5 ), and the USA (see table
Suppliers
UV material (figure )
Berson www.bersonuv.com
Calgon/Chemviron Carbon www.catalyticcarbon.com/ccc/tech/technologies/uv/
Ozonia www.ozonia.com/uv/uv
Trojan/Hach/Aquafine www.trojanuv.com
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