Against the current problem that regeneration of condensate water polishing system has no reliable adjustment basis

it proposed that the orthogonal test can be performed to monitor the content variation of various impurity ions dynamically under different regeneration conditions

and then the results can be fitted to obtain the optimal condition parameter for resin regeneration.The application in polishing system of a power plant shows that

when the concentration of Na+

NH4 +and other impurity ions decreases to below 1%

the regeneration degree of the cation resin satisfies the concentration requirements of Na+in mixed bed effluent;when the content of PO4 3-

active silica and other ions reduces to lower than 5%of the highest value

the regeneration degree of the anion resin meets the concentration requirements of Cl-in mixed bed effluent.After regeneration by following the optimal parameters

the period water volume increased from 3.3×104 t to 5.6×104 t

and the water quality of polishing was improved significantly.