DEVELOPMENT OF BACTERIAL CELLULOSE(BC)/ ZnO MEMBRANE FROM NATA DE COCO TO REMOVE AZO DYES IN ARTIFICIAL TEXTILE WASTEWATER

• Main Author: Novilina Arifianingsih (NIM : 25315008), Nur
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23583
• Institution: Institut Teknologi Bandung

Membrane technology is one of the advanced water treatment technology which could remove azo dyes and organic compound in wastewater of textile industries effectively. Bacterial cellulose based membrane, compared with other membranes which are made of polysulfone or polyethersulfone, is cheaper due to coconut water is abundant in nature. Cellulose is commonly extracted from wood. However, in order to minimize the wood use in the process of membrane development, utilizing other resources containing the same characteristic with cellulose from wood is one of the feasible way. Nata de coco, a bacterial cellulose (BC) produced in the fermentation of coconut water, is the potential substance used in this research. Previous research has successfully synthesized cellulose acetate from nata de coco and raw materials. The purpose of this research is to attempt the capability of membranes of bacterial cellulose (BC) without converted into cellulose acetate with variation of ZnO concentration as photocatalyst. Characterization of BC/ZnO membrane use flux, rejection, FTIR, SEM, EDS and tensile strength. The BC/ZnO membrane was tested on a textile material containing Reactive Black 5 (RB 5) at a concentration of 20, 40 and 60 ppm. The result showed that color removal efficiency was achieved at optimum concentration 60 ppm with variation membrane BC/ZnO 0,22 gr with UV. Operating pressure 8 atm makes the BC/ZnO membrane as the ultrafiltration membrane. The capability of BC/ZnO in removing RB 5 dye by 99,09%. Kinetic model is Adam- Bohart with (k’) 57,90 x 10-5 l/m.minute with absorbance capacity (a0) 15458 mg/l with R2 97,13%.