The dissolution of the spent fuel was accomplished in CRARL under the cooperation among three divisions of department of radiochemistry.The experiment was started in 22September,and was completed in 27September.Two batches spent fuel of xx reactor was dissolved in these 6days.About 13liters feed of the co-decontamination The dissolution of the spent fuel was accomplished in CRARL under the cooperation among three divisions of department of radiochemistry. The experiment was started in 22September, and was completed in 27September.Two batches spent fuel of xx reactor was dissolved in these 6days. About 13liters feed of the co-decontamination