Orthogonal Experiment Based Analysis on Chemical Stability of Desalinated Seawater

Orthogonal experiment is used to find out the key influencing factors of desalinated seawater quality chemical stability during distribution process. The experimental results show that in ferruginous and PE distribution systems, dosing quantity of CaCO₃ is the most important influencing factor, the less important one is running time, and the least important one is velocity. Also the most optimal horizontal combinations according to different tubing are given out. Moreover, it shows that the most optimal horizontal combinations of the two tubing are different, which means that tubing also has great influence on keeping desalinated seawater stably distributed in the municipal water distribution systems.