MR-CE 300 Ion exchange vocational training equipment school equipment teaching fluid mechanics lab equipment
Ion exchangers are used in water treatment primarily for desalination and softening. CE 300 enables these processes to be demonstrated with the aid of cation and anion exchangers.
The raw water is pumped from the tank into the top of the cation exchanger. In the softening process the water flows from there back into the collecting tank. To desalinate the raw water, it is then additionally routed through the anion exchanger. From there the treated water passes into the collecting tank. In the regeneration process, acid or caustic is fed into the ion exchangers from below using the same pump. The acid and caustic used is collected in the collecting tank.
The flow rate of the pump is adjustable, and can be read from a flow meter before it enters the first ion exchanger. For continuous evaluation of the process, a conductivity sensor is installed upstream of the inlet into the collecting tank. The measured values can be read from a conductivity meter. Samples can be taken at all relevant points. Tap water can be used as raw water.
Technical details
Specification
softening and desalination with ion exchange
cation and anion exchangers usable separately and in combination
regeneration of ion exchangers tank with 4 chambers for raw water, rinsing water, acid and caustic
diaphragm pump to transport raw water, rinsing water, acid and caustic
collecting tank for treated water, rinsing water, acid and caustic
continuous measurement of conductivity and flow rate
Technical data
Ion exchanger
material: network polymer
cation exchanger: H+ form
anion exchanger: OH- form
Diaphragm pump
max. flow rate: 300mL/min
max. head: 10m Tank
4 chambers
capacity: each approx. 5L
material: PVC
Collecting tank
capacity: approx. 20L
material: PVC
Measuring ranges
flow rate: 27…270ml/min
conductivity: 0…2000µS/cm
