Method for analyzing corrosiveness of water and forecasting water quality changes and water quality control system using thereof

摘要

According to the present invention, (a) measuring the temperature, ionic strength, calcium ion concentration, alkalinity and hydrogen ion concentration of raw water; (b) generating a Caldwell-Lawrence Chart corresponding to the temperature and ionic strength of the raw water measured in step (a); (c) whether or not the raw water is ion saturated using the Caldwell-Lawrence chart generated in step (b) Determining; (d) calculating the corrosiveness index of the raw water when the raw water determined in step (c) is in an ionic unsaturated state; (e) calculating the injection amount of the water stabilizer added to the raw water by using the corrosiveness index calculated in step (d); And (f) estimating the water quality change of the intermediate water produced by the mixing of the raw water and the water stabilizer according to the injection amount of the water stabilizer calculated in step (e). An analysis and prediction method of water quality change and a water quality control system using the same are provided.