Sulfite destruction of direct acting mutagens in drinking water

Details Sulfite destruction of direct acting mutagens in drinking water Sulfite destruction of direct acting mutagens in drinking water

1980-10-24

1982-12-21

Castel, Benoit

Liquid purification or separation

Processes

Chemical treatment

210755, 210757, 210908, C02F 170, C02F 176

Patent

active

043648355

ABSTRACT:
A method of reducing the activity of non-volatile mutagens, in chlorinated water, such as chlorinated drinking water and municipal and industrial waste water, by sulfite treatment. The chlorinated water is treated with a stoichiometric excess of sulfur dioxide or soluble sulfite or bisulfite salt sufficient to dechlorinate the water and at least partially destroy the mutagens present.

REFERENCES:
patent: 1229305 (1917-06-01), Menzies
patent: 2134679 (1938-11-01), Allen
patent: 4282104 (1981-08-01), Pacini et al.
patent: 4304673 (1981-12-01), Reynolds et al.
Cheh, A. M. et al., "Nonvolatile Mutagens in Drinking Water: Production by Chlorination and Destruction by Sulfite", Science, vol. 207, pp. 90-92, (1980).
Proceedings of the Third Conference on Water Chlorination: Environmental Impact & Health Effects; Colorado Springs, Colorado, Oct. 28-Nov. 2, 1979, pp. 804, 805, 812.
Chemical & Engineering News, p. 24, Jan. 24, 1980.
Abstract of Proceedings of the 3rd Conf. on Water Chlorination, Distributed in Colorado Springs, Colorado, Oct. 28, 1979.

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