Fixed bed ion exchange resin regeneration steps downstream
Cation exchange resin
1 backwash:
After the failure of resin, water backwashing resin layer to clear water stop.
2 regeneration:
Yang Shuzhi regeneration level of 100 kg 100% pure hydrochloric acid / M 3 resin. The regeneration agent concentration was formulated as 4~5% with the addition of brine, and the regeneration time was about 1 hours.
3 replacement:
At least 40 minutes with the same flow rate of removal of salt water.
4 cleaning:
An electrodialysis water according to the normal water flow of resin bed for cleaning (maximum flow rate does not exceed 20 m / h) for a minimum of 40 minutes.
Two. Anion exchange resin
1 backwash:
After the failure of resin, water backwashing resin layer to clear water stop.
2 regeneration:
Anion resin regeneration level of 100 kg 100% pure sodium hydroxide / M 3 resin. The regeneration agent concentration was formulated as 4~5% with the addition of brine, and the regeneration time was about 1 hours.
3 replacement:
At least 40 minutes with the same flow rate of removal of salt water.