The Ozone Defense

by Howard Smallowitz, Asst. Ed.; Civil Engineering�ASCE, New York,


Serial Information: Civil Engineering—ASCE, 1987, Vol. 57, Issue 1, Pg. 64-66


Document Type: Feature article

Abstract:

Ozone is a molecule containing three oxygen atoms. When bubbled through drinking water, the third atom in ozone is attracted away by other molecules, a process called oxidation. This process also interferes with the chemical reactions necessary for the survival of bacteria and viruses. This method of disinfecting water has been recently introduced in Hackensack, N.J. Benefits cited by the Hackensack Water Company include low trihalomethane (THM) concentrations (Hackensack's water has 70 ppb, the current EPA standard is 100 ppb), reduced usage of chlorine and other chemicals which in turn reduces costs, and elimination of settling basins, also reducing costs.

Subject Headings: Ozone | Water treatment | Trihalomethanes | Chemical processes | Benefit cost ratios | Wastewater treatment | Viruses

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