Technical assistance: Mixed-bed regeneration – concentration of regenerant alkali
Thread Content
This post was last edited by li*ch1968 on 2010-5-4 20:22. For mixed-bed regeneration, the concentration of acids and bases used in this process is also a key factor; some sources indicate that the optimal concentration is 1.0~2.0%, while others suggest it to be 3%~4%； Which one is better? Our plant produces water using mixed-bed systems at a rate of 100 tons per hour, with regeneration taking place every 10 days. Can this regeneration cycle be shortened?
During our training at a thermal power plant, we saw that the mixed-bed there was regenerated once a month, at a rate of 100 t/h as well
There are many factors that affect operating time: regenerant concentration, flow rate, temperature, type, method, dosage, purity, etc., as well as the salt content in the incoming water; the most important factor, however, is the exchange capacity of the resin.
The acid and alkali concentration for mixed-bed regeneration is generally 1.0~2.0%.
Control is better at a 2% concentration