It is used in many fields as a souce of chlorine. For example : in cooling towers in the industry, in the treatment of potable water, for the prevention of legionella diseases in hot (and sometimes cold) water systems. It is very useful in biofilm prevention too. And I have seen it too in the processing of ready to use vegetables in this kind of plants:
Article Exposure to Chloraminies in a Green Salad Processing Plant
Article Exposition aux chloramines lors de conditionnement des légum...
Good question. Chlorine has traditionally been used in India. Other alternate disinfectants are many- ozonation, ultra violet radiation, Bromine and Iodine, silver and copper and Chlorine Dioxide.
we can use Chlorine dioxide ClO2 under following circumstances:
1. When algal presence is felt in water
2. When musty odours are felt
3. when chloro phenolic taste is seen in water
Note that chlorine dioxide does not react with ammonia
4. Chlorine dioxide does not react with nitrogenous compounds and can therefore be competitive in comparison with systems where a free chlorine residual is necessary.
chlorine dioxide is for use as a disinfectant. Since 1999 a growing proportion of the chlorine dioxide made globally for water treatment and other small-scale applications has been made using the chlorate, hydrogen peroxide and sulfuric acid method, which can produce a chlorine-free product at high efficiency.
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