Batch and Column Studies for Removal of Sulphate from Real Wastewater Using Ion Exchange Resin

Abstract

In thisstudy, sorption potential of anion exchange resin (Lewatit Monoplus M600) toremove sulphate from real wastewater was investigated. Kinetic studies wereperformed in batch experiments. A comparison of kinetic models applied to thesorption of sulphate onto resin was evaluated for the "infinite solution volume model" and"unreacted core model". Rate-determining step is the liquid film controlstep of the unreacted core model. When pH values increased above 9, more than80% sulphate removal was observed. Column sorption-elution experiments wereperformed for the removal of the sulphate from the wastewater by resin. TheThomas and the Yoon-Nelson models were applied to experimental data todetermine the characteristic column parameters.

Keywords

• sulphate
• anion-exchange resin
• wastewater
• kinetic models