| 초록 |
Biosorption has been demonstrated to be an useful alternative to conventional treatment system for the removal of dyes even from dilute aqueous solutions. The objective of this work is to develop a surface-activated biosorbent with enhanced sorption capacity and binding affinity. The binding sites for reactive dye (RB4) were identified to be primary amine groups present in the Corynebacteriun glutamicum biomass. Also, carboxyl and phosphate groups were indicated to be responsible for repulsing dye molecules. In this research, based on the biosorption mechanism, the performance of biosorbent could be enhanced by the removal of inhibitory carboxyl groups from the biomass. In order to confirm the chemical modification efficiency, the FTIR study was carried out. |
