1. Preparation of Acid Solution
Take 22 litres of D.M. Water into the acid measuring tank, pour 10 litres of acid and stir to get uniformity.
2. Preparation of Soda Solution
Take 32 litres of D.M. Water into the caustic tank. Weigh and add 2.4 kg of caustic soda into the tank under stirring. Ensure completely dissolved. Allow the solution to get cooled before regeneration.
3. Acid Injection
Fill the regenerant tank with 16 litres of Acid Solution. Connect the regenerant inlet and the compressed air pipeline to the regenerant tank. Open “B” to allow acid injection to take place for period of 15 minutes by adjusting the air pressure. Close ‘B’. Repeat the process by filling the regenerant tank with remaining 16 litres of acid solution and by opening ‘B’. After acid injection close ‘B’ and stop compressed air supply.
4. Acid Rinsing
Connect the regenerant inlet to raw water supply. Open ‘B’ and rinse the resins for 20 minutes. Close ‘B’
5. Before starting Soda Injection, close the pipeline which leads from the junction to “Conductivity Cell” by using a plug, (As soda solution is not allowed to enter the conductivity cell).
6. Connect the raw water inlet to raw water supply. Open ‘C’ and ‘D’ and allow the water to go through for 5 minutes. Close ‘C’ and ‘ D’ wait for 5 minutes.
7. Soda Injection
All the regenerant tank, with 16 litres of soda solution, connect regenerant inlet and compressed air pipe to the regenerant tanlk. Open A and D to allow the soda injection to take place for 15 minutes by adjusting the air pressure. Close A and D and fill the regenerant tank with remaining 16 litres of soda solution. Repeat the injection process by opening A and D. After soda injection close A and D and stop compressed air supply.
8. Soda Rinsing
Open A and D, connect regenerant inlet to raw water. Rinse for 20 minutes close A and D.
9. Final Washing
Open raw water supply, and open C until conductivity is attained.
10. Collect the water only after getting the conductivity less than 30 microsiemens/cm.
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