Généré sur site à partir du Chlorite de sodium, le dioxyde de chlore (ClO2)est un désinfectant efficace (bactéricide, virulicide, algicide et sporicide) utilisé depuis plusieurs décennies notamment pour son effet rémanent qui permet de préserver l'eau des contaminations ou du développement bactérien dans le réseau de distribution.
Le chlorite de sodium est un composé chimique stable en milieu alcalin dont l'élément actif, le dioxyde de chlore, est un oxydant puissant. Le dioxyde de chlore est formé dans le milieu réactionnel ou dans un générateur et permet la destruction
* des polluants chimiques ou biologiques, d'où son utilisation dans le traitement des eaux potables (pré-oxydation et désinfection), des eaux résiduaires (désinfection et dépollution phénolique ou sulfurée) comme agent anti-slime (traitement des eaux de procédé dans les papeteries) et anti-fouling (traitement des eaux des circuits de refroidissement d’unités industrielles) ;
* des molécules organiques colorées, d'où son utilisation dans le blanchiment des fibres textiles cellulosiques et synthétiques ou la décoloration d'effluents aqueux.
1. What is Chlorine Dioxide?
Chlorine dioxide (ClO2) is a fast-acting disinfectant and odor neutralizer. Because ClO2is a powerful oxidizing agent, it rapidly reduces bacteria, yeast and viruses upon contact.
Chlorine dioxide is not a recent discovery. The compound was first produced by Humphrey Davy in 1811. Today, ClO2is primarily used as a disinfectant for municipal water supplies, especially those with odor and taste problems. It is also extensively used as a bleaching agent in the pulp and paper industry. Some newer applications for ClO2include the disinfection of fruit, vegetables, meat and poultry, flume water disinfection, and the treatment of medical waste. Until recently, however, chlorine dioxide was not available for use on a small-scale basis because the gas must be generated at the point of use and could not be easily transported.
2. Is chlorine dioxide safe?
Chlorine dioxide was first used for drinking water disinfection in 1944 at The Niagara FallsNew Yorkwater treatment plant. Currently, there are approximately 400 - 500 water treatment plants in the United States and over 500 in Europe that use ClO2to purify municipal drinking water systems. Numerous studies have shown chlorine dioxide to have no adverse health effects, either by skin contact or ingestion.
3. What's the difference between chlorine and chlorine dioxide?
While chlorine dioxide (ClO2)has chlorine in its name, chlorine dioxide's chemistry is radically different than that of chlorine.Unlike the more common chlorine, chlorine dioxide is non-mutagenic, non-carcinogenic, and relatively non-irritating. ClO2for example, does not hydrolyze to form HCl as does chlorine nor does it combine with organics to form chlorinated hydrocarbons. One atom can make all the difference. Similarly, hydrogen is an explosive gas. But when combined with oxygen, it becomes dihydrogen oxide--commonly known as water (H2O).
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