Research on pH Automatic Adjustment System in Radioactive Decontamination Waste Liquid Evaporation Treatment System

During the operation process of the waste liquid evaporation treatment system,the pH value of the radioactive decontamination waste liquid will change constantly,and lead to the violent fluctuation of the liquid level in the evaporator.In the paper,the causes of this phenomenon are analyzed,and the technical solution for this problem which introduces a waste liquid pH value online monitoring and automatic adjustment system into the waste liquid loading pipeline is designed.By adding suitable amount of acid or alkali solution automatically into the loading waste liquid,its pH valve can be stabilized within the given range.