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Article

Enhanced Removal of Bordeaux B and Red G Dyes Used in Alpaca Wool Dying from Water Using Iron-Modified Activated Carbon

Laboratorio de Tecnología de Membranas, Universidad Católica de Santa María—UCSM, Urb. San José, San José S/N, Yanahuara, Arequipa 04000, Peru
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Academic Editor: Gaurav Sharma
Water 2022, 14(15), 2321; https://doi.org/10.3390/w14152321
Received: 20 June 2022 / Revised: 18 July 2022 / Accepted: 20 July 2022 / Published: 26 July 2022
(This article belongs to the Section Wastewater Treatment and Reuse)
The aim of this research was to explore the removal of Red G and Bordeaux B dyes from water using a packed bed column with conventional carbon (C-conv) and iron-modified activated carbon (C-FeCl3). The bands increased in C-FeCl3, corresponding to groups already existing in C-conv, such as C = C and C-C, and the appearance of new groups, such as C-O, C-Cl, Fe-Cl and Fe-O. The total ash content (CT) was CT = (10.53 ± 0.12 and 8.98 ± 0.21)% for C-conv and C-FeCl3, respectively. A molecular structure in the shape of a cross was noticed in Bordeaux B, which was less complex and smaller than the one in Red G. For fixed-bed columns, the carbon fraction was (0.43 and 0.85) mm. The pH of the adsorbents was 8.55 for C-conv and 4.14 for C-FeCl3. Breakthrough curves were obtained and the Thomas model (TM) and Yoon–Nelson model (YNM) were applied. The sorption capacity of Bordeaux B on C-conv and C-FeCl3 was qTH: (237.88 and 216.21) mg/g, respectively, but the one of Red G was qTH: (338.46 and 329.42) mg/g. The dye removal (RT) was over 55%. View Full-Text
Keywords: iron-modified activated carbon; azo dyes; fixed-bed columns; adsorption iron-modified activated carbon; azo dyes; fixed-bed columns; adsorption
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MDPI and ACS Style

Colina Andrade, G.J.; Vilca Quilla, J.M.; Terán Hilares, R.; Tejada Meza, K.; Mogrovejo Valdivia, A.C.; Aguilar-Pineda, J.A.; Cárdenas García, J.D.; Pacheco Tanaka, D.A. Enhanced Removal of Bordeaux B and Red G Dyes Used in Alpaca Wool Dying from Water Using Iron-Modified Activated Carbon. Water 2022, 14, 2321. https://doi.org/10.3390/w14152321

AMA Style

Colina Andrade GJ, Vilca Quilla JM, Terán Hilares R, Tejada Meza K, Mogrovejo Valdivia AC, Aguilar-Pineda JA, Cárdenas García JD, Pacheco Tanaka DA. Enhanced Removal of Bordeaux B and Red G Dyes Used in Alpaca Wool Dying from Water Using Iron-Modified Activated Carbon. Water. 2022; 14(15):2321. https://doi.org/10.3390/w14152321

Chicago/Turabian Style

Colina Andrade, Gilberto J., Jessica M. Vilca Quilla, Ruly Terán Hilares, Kevin Tejada Meza, Alejandra C. Mogrovejo Valdivia, Jorge A. Aguilar-Pineda, Jaime D. Cárdenas García, and David A. Pacheco Tanaka. 2022. "Enhanced Removal of Bordeaux B and Red G Dyes Used in Alpaca Wool Dying from Water Using Iron-Modified Activated Carbon" Water 14, no. 15: 2321. https://doi.org/10.3390/w14152321

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