Sharmin Sultana - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh
Zakia Akter Sonia - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh
Md. Mahmud - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh
M. Mottakin - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh
Jahid Bin Haider - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh
Shoeb Ahmed - Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
Md Mosaddek Hossen - Department of Applied Chemistry & Chemical Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University (BSMRSTU), Gopalganj, Bangladesh

Water hyacinth, an abundant aqueous source of biomass, can be considered as a cash crop if properly utilized. As a lignocellulosic biomass, water hyacinth consists of three major chemical components-cellulose, hemicellulose, and lignin. These components have their direct industrial applications and can be used as raw materials to synthesize numerous chemicals. The objective of this study was to co-extract the cellulose, hemicellulose, and lignin from water hyacinth. Hemicellulose and lignin were isolated from water hyacinth by acidic and basic treatment, respectively. The operating conditions (concentration, temperature, and time) of the acid and basic treatment processes were optimized based on the hemicellulose and lignin yield. The solid residue was further oxidized by a bleaching process to obtain cellulose. The yields for cellulose, hemicellulose, and lignin-rich solids were determined as ۲۰.۵%, ۷.۹%, and ۱۳.۸%, respectively. The products were confirmed and characterized by FTIR and XRD. Highly crystalline nanocellulose particles were produced. From XRD, the crystallinity index and average crystallite size were calculated as ۶۱- ۶۷.۵۹% and ۴.۲۶ nm, respectively.

Biomass conversion, Biomass valorization, water hyacinth, Cellulose, Hemicellulose, lignin