Chlorine’s glory days

It has the longest legacy of any chemical in the water treatment business. Nevertheless, chlorine’s future as a water disinfectant faces many challenges, as Gord Cope discovers.

It is easy to admire chlorine. One of the most common elements on Earth, it has tremendous value in a wide variety of uses, from pharmaceutical production to plastic pipe manufacturing. Its greatest boon, however, is its efficacy in removing undesirable pathogens from water. Thanks to its widespread introduction into European and North American municipal systems, this powerful disinfectant has ...

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