Concentration / Recovery of H2SO4 using Electrodialysis

Dhaval N. Yadav, Beena K. Sheth

Abstract: Sulphuric acid known as universal solvent is used widely in chemical industry where acidic or anhydrous conditions are required, in its various forms either as dilute or concentrated, as a raw material or a catalyst. The effluent/spent acid generated from industries containing sulphuric acid being hazardous is a major environmental problem that needs to be recovered /separated. Many methods Conventional or Advance have been applied successfully for the recovery of sulphuric acid from waste streams. Membrane separation methods being advantageous and eco-friendly compared to conventional techniques is now being used widely. The present work here focuses on recovery/concentration of laboratory made sample of sulphuric acid using Electrodialysis for different concentration of sulphuric acid solution.

Keywords: Sulphuric Acid, Ion exchange membrane, Electrodialysis