Worldwide demand for chlorine and other water treatments is expected to surge as booming populations put enormous pressure on water resources, according to this article. "Chlorine is used to destroy disease-causing organisms in water, an essential step in delivering safe drinking water and protecting public health," according to the World Chlorine Council. Meanwhile, German group Lanxess, which is developing two nonchlorine water-treatment technologies, sees strong growth potential in processes that require minimal use of chemicals.

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