Conference Dates

May 18-22, 2003

First Page

83

Abstract

Tests using side streams from an industrial cooling water system have been made to compare the corrosion rates associated with the use of chlorine and chlorine dioxide biocides. Two streams were employed, a "once through" and a recirculating system employing a cooling tower. The water used in the plant originated from a canal. The results of the tests revealed differences in characteristics between the circuits, depending on the biocide used and the operating conditions. The data obtained demonstrated a higher corrosion rate of 1.5 mpy with chlorine compared to 1.0 mpy using chlorine dioxide.

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