How Is Ion Exchange Resin Activated

1. The method is suitable for the activation of negative and cation exchange resins polluted in the treatment of chromium plating wastewater by ion exchange method.

2.Anion exchange resin can be activated in vitro. The amount of activation liquid is 1-2 times the volume of resin. The activation solution was prepared with sulfuric acid and sodium bisulfite at a concentration of 2.0-2.5MOL/L. The content of sodium bisulfite was 45G/L for gel type strong alkali negative resin and 28G/L for large pore type weak alkali negative resin. During activation, the resin was soaked in the activation solution overnight

3.Cation exchange resin, can be activated in the body. The amount of liquid is twice the volume of resin. The activation solution was prepared with hydrochloric acid with a concentration of 3.0MOL/L, passed through the resin layer at a flow rate of 1.2-4.0M/H, and then soaked in sulfuric acid with a volume of 1-2 times the volume of the resin and a concentration of 2.0-2.5MOL/L for more than 3H.