Clarification of Glucose from Cellulose Hydrolysate by Ultrafiltration with Polyethersulfone Membrane

Masniroszaime Md Zain; Abdul Wahab Mohammad

Authors

Masniroszaime Md Zain Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia 43650 Bangi, Selangor Author
Abdul Wahab Mohammad Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia 43650 Bangi, Selangor Author

Keywords:

glucose, enzyme hydrolisis, lignocellulosic biomass, ultrafiltration, polyethersulfone

Abstract

Ultrafiltration was used to clarify glucose from cellulose hydrolysate using polyethersulfone (PES) membrane. The flux behavior of PES membrane was studied in concentrating glucose from cellulose hydrolysate during dead end ultrafiltration in different pH of solutions and Kumar’s model was applied to analyse the fouling mechanism. The permeation of glucose achieved more than 93% for all the different pH solution. The permeate flux decreased over time as a result of membrane fouling. The minimum fouling was obtained at pH solution above the IEP due to protein-protein and membrane-protein repulsions alleviating aggregation and fouling. Cake formation blocking was identified as the dominant mechanism for flux decline.