We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Evaluating the Flocculation and Dye Recovery Potential of Cationic Dye Basic Blue 41 Using a Natural Flocculant Derived from Colletotrichum gloeosporioides.
- Authors
Wu, Chun-Yung; Shu, Che-Chi
- Abstract
In this paper, the flocculation and dye recovery potential of a cationic dye, C.I. Basic Blue 41 (BB41), were explored using a natural, fungus-derived flocculant. The influence of various factors on the flocculation, characterization before and after flocculation, as well as adsorption kinetics were investigated. It was observed that an initial pH of 4, without any pH adjustment, favored flocculation, resulting in over 80% decolorization efficiency, whereas a pH of 2 was found to be unfavorable. Because of this acidic-pH responsive property, dyestuffs can be regenerated at pH 2 with a dye recovery efficiency exceeding 60%. The concentration increased by over 3 times when the regeneration occurred in one-tenth of its original volume. Scanning electron microscope (SEM) morphological analysis observed that the dye particles accumulated on the surface of the flocculant. The adsorption process fitted a pseudo-second-order kinetics model. Fourier transform infrared (FTIR) analysis suggested that amide, amine, and hydroxyl groups played important roles in flocculation. These findings were further confirmed with two other textile cationic dyes, C.I. Basic Red 29 (BR29) and C.I. Basic Blue 54 (BB54), both of which exhibited excellent flocculation performance, achieving nearly 100% decolorization efficiency and approximately 40% recovery efficiency. These results suggest that the flocculant used in this study has the potential not only to remediate dyestuffs from textile wastewater but also to recover dyestuffs in a simple manner.
- Subjects
FLOCCULANTS; BASIC dyes; COLLETOTRICHUM gloeosporioides; FLOCCULATION; INDUSTRIAL wastes; SCANNING electron microscopes
- Publication
Water, Air & Soil Pollution, 2024, Vol 235, Issue 6, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-024-07164-8