Modeling of residual chlorine and disinfection by-products of a pilot sector from the drinking water distribution system of Cali city
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This study was designed to model the behavior of residual chlorine and disinfection by-products of a pilot sector of the drinking water distribution system in the city of Cali with about 7.000 users (30.000 inhabitants) supplied with water from the Cauca River. The results indicate that this type of modeling is a valuable tool for monitoring the water quality in the network at deeper levels. In the pilot study, 80% of residual chlorine was above 0.3 mg/L. The predominant disinfection by-product was chloroform, representing 95% of trihalomethanes, with values of 80 mg/L in 95% of the points of the network. The behavior of residual chlorine and chloroform was affected by the water age in the pipe, which increases when the system was supplied by the storage tank.
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