A conductivity meter connected to the outlet of the second ion exchange bed gives a continuous indication of the progress of demineralisation. The apparatus is supplied with typical commercial cation and anion resins.
Union couplings permit the tubes to be removed from the manifolds and interchanged for softening/demineralisation experiments.
Two vertical transparent tubes mounted on a backboard contain the cation and anion resins. A manifold arrangement at the inlet and outlet to the tubes allows the flow configuration to be changed to simulate the cycles involved in the operation of a deioniser.
Regenerant and test or wash solutions contained in separate sumps are selected by a traversing tube and delivered to the apparatus by pump through a control valve and flow meter. Effluent may be fed to a sump tank and treated water collected in bottles for tests on hardness, conductivity or dissolved solids.
Tank With 4 Chambers For Raw Water, Rinsing Water, Acid And Caustic
Diaphragm Pump To Transport Raw Water, Rinsing Water, Acid And Caustic
Softening And Desalination With Ion Exchange
Collecting Tank For Treated Water, Rinsing Water, Acid And Caustic
Continuous measurement of conductivity and flow rate
Cation And Anion Exchangers Usable Separately And In Combination
Regeneration Of Ion Exchangers.
It is used to do water softening and water purification experiment in middle school chemistry teaching, and consists of water inlet, cation exchange column, soft water outlet medium, anion exchange column and pure water outlet.
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