Theoretically 1mol soft resin regenerant 1mol should enable exchange resin exchange capacity of recovery, but in fact the reaction can only be recycled to the ion exchange equilibrium chemical reactions, only a theoretical amount of the recycled resin regenerant, and can not fully recover their capacity to pay, so the amount must be more than the theoretical amount. Increase the amount of regenerant can improve the degree of resin regeneration, the regenerated catalyst to a certain extent than the consumption, the regenerative degree of increase is not obvious. Renewable dosage and nature of the ion-exchange resin, resin generally strongly desired dosage over a weak recycled resin. Different reproduction mode, the amount of regenerant are different, the general current regeneration than the amount of regenerated catalyst countercurrent regeneration. Increase the amount of regenerant can improve the degree of resin regeneration, the regenerated catalyst to a certain extent than the consumption, the regenerative degree of increase is not obvious. Renewable dosage and nature of the ion-exchange resin, resin generally strongly desired dosage over a weak recycled resin. Different reproduction mode, the amount of regenerant are different, the general current regeneration than the amount of regenerated catalyst countercurrent regeneration. Softening resin regeneration method using downstream, since the regeneration fluid to the upper portion of the first contact with complete failure of the resin, so this part of the resin to obtain a good regeneration. When the regeneration solution and then further downstream in contact with the bottom of the switch when the resin, the regeneration solution is replaced has accumulated a large out of the ion exchange resin is a serious impact on the reproduction level, so that the part of the resin is not sufficiently regenerated, the impact of effluent . If you want to increase the level of this part of the regeneration of the resin, it is necessary to increase the amount of regenerant. Countercurrent regeneration mode softening resin, since the resin at the bottom of the switch is always in contact with freshly regenerated catalyst, it is possible to achieve a high level of reproduction, operation of water and this part of the final resin with a high degree of contact with regeneration, to ensure the water quality . Countercurrent regeneration, resin regeneration upper level switch is poor, although it is in contact first with the water, but the water down from the ion exchange resin content, it still can be ion-exchanged, this part of the exchange capacity of the resin can still be fully play.