The contacting techniques are almost identical.
Ion exchange resin column design.
Based on the experiment results and calculation the ion exchange is design as follows.
With the exception of the resin.
Only a few general recommendations to ensure that an ion exchange system is designed economically and to achieve good performance and a simple but detailed example.
Ion exchange takes place in one column while the resin in the second column is being regenerated resulting in continuous operation.
Usage examples continuous ion exchangers are used when it is imperative that product be continually generated.
The aim of the work described in this report was to design an ion exchange column for the removal of ammonium ions from ro permeate.
10 days material cost of resin per m3 water produced.
The optimum column diameter must be a balance between the resin bed height the ratio of resin height to diameter h d and the linear velocity.
O the scale up approach o the kinetic approach.
Design procedures the breakthrough curves for an ion exchange column and an adsorption column are similar.
Calenergy minerals is using an anionic dowex resin to recover zinc from geothermal brines in a series of ion exchange columns.
1 2 minutes column height.
Column size most industrial ion exchange columns have a diameter between 0 5 and 3 2 m.
4 each with a capacity of 120m3 h surface loading.
Because it is lighter the weak acid resin remains on top.
The design of the vessels should give a maximum resin bed depth while limiting the pressure drop across the resin bed to 1 bar.
The recovered zinc is eluted with pure water and transferred intermittently to be treated by further refining 2.
Ion exchange process for control of iron in copper electrolytes 1.
A demineralizer system consists of one or more ion exchange resin columns which include a strong acid cation unit and a strong base anion unit.
Ion exchange plant design some basic principles you will not find here a complete plant design manual.
One variation of the standard design uses a layer of weak acid resin on top of strong acid cation resin.
Bigger vessels with up to 4 0 m are sometimes built but the aspect ratio of the resin bed width height becomes unfavourable and very precise distribution and collection systems must be fitted to ensure an even flow of the water during service and.
How to design an ion exchange resin system.
For example metal contaminants are.
Continuous ion exchangers consist of two columns in parallel.
Rohm and haas ion exchange ion exchange introduction 4 fd sep 2008 to soften water you take a cation exchange resin on which the mobile ion inside the beads is sodium na and you pass the hard water through a column filled with the sodium form resin.
Basic column types are shown in another page.
Therefore the same procedures used for the design of adsorption columns may be used for ion exchange columns.
