Optimization of Regeneration Operation Modes for Cation and Anion Exchange Units in the Desalinated Water Production System
By dynamically allocating the water production capacity of the chemical first and second-stage water systems,and reasonably arranging the operation modes and water production cycles of the cation,anion,and mixed ion exchange units in the chemical water production system,this study ensures that the cation,anion,and mixed ion exchangers regenerate in a proportional,centralized manner(i.e.,"cooperative regeneration").Mean-while,it maximizes the effective volume of the wastewater tank,allowing the acidic and alkaline regeneration wastewater to reach a"self-neutralization"effect after being discharged into the tank.As a result,only slight pH adjustments are needed for the mixed wastewater to meet discharge requirements,thereby reducing the consump-tion of acid and alkali chemicals for neutralizing wastewater and lowering the overall desalinated water production costs.
acid-alkali regeneration wastewatercoordinated regenerationcost reduction and efficiency improve-ment
NETL
NSTL
万方数据
