A model to predict total chlorine residue in the cooling seawater of a power plant using iodine colorimetric method

作者:Wang Jih Terng; Chen Ming Hui; Lee Hung Jen; Chang Wen Been*; Chen Chung Chi; Pai Su Cheng; Meng Pei Jie
来源:International Journal of Molecular Sciences, 2008, 9(4): 542-553.
DOI:10.3390/ijms9040542

摘要

A model experiment monitoring the fate of total residue oxidant (TRO) in water at a constant temperature and salinity indicated that it decayed exponentially with time, and with TRO decaying faster in seawater than in distilled water. The reduction of TRO by temperature (K) was found to fit a curvilinear relationship in distilled water (r(2) = 0.997) and a linear relationship in seawater (r(2) = 0.996). Based on the decay rate, flow rate, and the length of cooling water flowing through at a given temperature, the TRO level in the cooling water of a power plant could be estimated using the equation developed in this study. This predictive model would provide a benchmark for power plant operators to adjust the addition of chlorine to levels necessary to control bio-fouling of cooling water intake pipelines, but without irritating ambient marine organisms.

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