implementations herein relate to methods for reducing a desorption solution for regeneration of ion exchange resins in the field of regeneration of resins . the implementations solve problems related to low utilization rates of regeneration agents and high volumes of desorption solutions during the desorption process . the implementations include regenerating the ion exchange resins , and the regeneration solution becomes the desorption solution . after coagulating sedimentation of the desorption solution and slurry separation , a large amount of organic contents are removed from coagulation serum and a large amount of regenerate agents are left . the implementations further include adding the regeneration agent to the coagulation serum to form new or refreshed regeneration solution to regenerate the ion exchange resins . accordingly , the coagulation serum may be generated from the desorption solution . these operations may be repeated multiple batches for resin regeneration .