Water quality measurement method of water to be treated, water quality control method of water to be treated, water quality measurement device of water to be treated, and water quality control system of water to be treated

摘要

PROBLEM TO BE SOLVED: To measure the alkalinity of a water to be treated quickly and surely with a simpler system and continuously monitor the water quality of the water to be treated, a water quality control method of the water to be treated, and a water quality of the water to be treated. A measuring device and a water quality control system for water to be treated are provided. A pH value of the water to be treated to set the acid injection rate to be 4.8 or less, to determine the electrical conductivity EC H treated water corresponding to the acid injection rate was set, the water to be treated Acid is injected at the acid injection rate, and the electric conductivity EC 0 of thewater to be treated before the acid injection and the electric conductivity EC 1 of the water to be treated after the acid injection are measured, and the electric conductivity EC 0 and the electric conductivity EC are measured. based on the value of the first measurement result and the electric conductivity EC H, a quality measurement method of the water to be treated, comprising the step of calculating the alkalinity of the water to be treated. [Selection diagram] Fig. 1