W9 MKII Ion Exchange Unit Demonstrational Equipment Technical Skills Training Equipment Water Treatment Trainer
DESCRIPTION The unit consists of two vertical transparent columns containing the cation and anion resins, mounted on a support frame together with the necessary pumps, valves and sensors. The arrangement of pumps and solenoid valves enables the flow configuration to be changed to demonstrate the various stages involved in the demineralisation or water-softening processes. Each stage of the process is selected by the operator using a PC and a mimic diagram for the appropriate stage displayed on the screen. Conductivity, temperature and pH of the influent and effluent of the columns are measured using electronic sensors for data logging. The apparatus is supplied with a typical commercial cation and anion resin, but other ion-exchange materials (not supplied) may be used so that their characteristics, exchange capacity etc may be measured and compared. Union couplings at both ends of the columns enable the column to be easily removed for maintenance and set-up without the need for tools. Regenerant, test and wash solutions are stored in separate containers to avoid cross-contamination, and effluents are fed to a waste-water tank for proper disposal.
TECHNICAL SPECIFICATIONS 2 x vertical columns: 16mm ID Solenoid valves:5 x Two-way valves (suitable for 10% HCl, 5% NaOH and 10% NaCl) Pumps:4 x 0-50mL (suitable for acid and alkali) Pump: 1 x 0-75mL (suitable for acid and alkali) PH sensors: 2 Conductivity/temperature sensors: 2 x 0 – 2mS/cm Conductivity probes:2 x 0 – 2mS/cm Regenerant bottles: 2 x 1L Waste-water container: 25L Feed & wash water containers: 2 x 10L