METHOD FOR MEASURING THE CONCENTRATION OF CHLORINE REMAINED IN PURIFIED TAP WATER USING A SENSOR, A MEASURING DEVICE, AND A WATER PURIFYING SYSTEM USING THE SAME

摘要

PURPOSE: A method for measuring the concentration of chlorine remained in purified tap water using a sensor, a measuring device, and a water purifying system using the same are provided to stably measure the concentration of the chlorine remained in the purified tap water on a real time basis and to supply the tap water in which the concentration of the chlorine remained in the purified tap water is regularly maintained.;CONSTITUTION: A method for measuring the concentration of chlorine remained in purified tap water using a sensor is as follows. The purified tap water flows into a batch chemical reactor(510). A reactant of the predetermined concentration, which chemical-reacts to the residual chlorine, is injected into the batch chemical reactor at a predetermined time interval while measuring an oxidation-reduction potential change value of the batch chemical reactor. The measured oxidation-reduction potential change value of the batch chemical reactor is quadratic-differentiated with an amount of the reactant injected into the batch chemical reactor as a variable so that an infection point is calculated. The amount of the reactant at the infection point is determined as a break-through point.;COPYRIGHT KIPO 2013