Technical help: I would like to ask about the difference between mixed-bed and double-bed systems.
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This post was last edited by hesonchang214 on 2012-3-18 20:03. I’d like to ask what the difference is between mixed-bed and regenerative beds; I’m a beginner and don’t understand it
This post was last edited by hesonchang214 on 2012-3-18 20:04. A mixed-bed refers to a processor composed of both cations and anions. A separate-bed system consists of processors made up of cations and anions separately, which are used in series!
This post was last edited and replied to by hesonchang214 on 2012-3-18 20:04. Reply to 2# haina2011: Does adding a carbon remover and an intermediate water tank between the cation and anion exchangers still count as a double-bed system?
Currently, there is no clear classification for the use of ion exchange multiplex beds. The so-called double-bed process is a desalination method that combines a cation exchanger and an anion exchanger. As for the different requirements regarding water quality, adding a carbon removal unit and an intermediate water tank between the two exchangers does not change the principle of the process. So I think it’s better to classify them by double beds.
Reply to 3# penryn: Count! The purpose of doing this is merely to reduce the load on the time-bed and extend the operating cycle of the bed. However, this is usually not done. Generally, the effluent from the anion exchange column flows directly into the cathion exchange column, while the effluent from the cathion exchange column goes directly into the mixed-bed reactor for SIO2 removal.
This post was last edited by hesonchang214 on 2012-3-18 20:15. This is how to determine the concentration of bicarbonate in water!
This post was last edited by hesonchang214 on 2012-3-18 20:15. This is more accurately called 2B3T, that is, 2 beds and 3 towers!