An Electro-Electrodialysis (EED) cell for periodic removal of precipitate

Name of the Inventor: Sujay Chattopadhyay, Priyabrata Mandal, Priya Goel, Bhuvanesh E. and Amit Suhag (PPE)

Application Number: 202111042858(IN)

Date of Patent Filing: 22.09.2021

Summary: The present invention relates to a system and method for electroelectrodialysis cell for periodic removal of precipitate. The invention provides modification of electrode compartment to remove any foulant from the EED cell without disrupting the process or dismantling the EED cell. This improves the process efficiency and overall economics besides saving energy and down time. The invention also provides a method of periodic silica removal from the anode compartment of EED setup during NaOH production from the green liquor of agro-based pulp mills.