TY - JOUR
T1 - Enhanced Removal of Bordeaux B and Red G Dyes Used in Alpaca Wool Dying from Water Using Iron-Modified Activated Carbon
AU - Colina Andrade, Gilberto J.
AU - Vilca Quilla, Jessica M.
AU - Terán Hilares, Ruly
AU - Tejada Meza, Kevin
AU - Mogrovejo Valdivia, Alejandra C.
AU - Aguilar-Pineda, Jorge A.
AU - Cárdenas García, Jaime D.
AU - Pacheco Tanaka, David A.
N1 - Publisher Copyright:
© 2022 by the authors.
PY - 2022/8
Y1 - 2022/8
N2 - 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 (Formula presented.)). The bands increased in (Formula presented.), 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 (Formula presented.), 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 (Formula presented.). 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 (Formula presented.) was (Formula presented.) : (237.88 and 216.21) mg/g, respectively, but the one of Red G was (Formula presented.) : (338.46 and 329.42) mg/g. The dye removal (RT) was over 55%.
AB - 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 (Formula presented.)). The bands increased in (Formula presented.), 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 (Formula presented.), 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 (Formula presented.). 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 (Formula presented.) was (Formula presented.) : (237.88 and 216.21) mg/g, respectively, but the one of Red G was (Formula presented.) : (338.46 and 329.42) mg/g. The dye removal (RT) was over 55%.
KW - adsorption
KW - azo dyes
KW - fixed-bed columns
KW - iron-modified activated carbon
UR - http://www.scopus.com/inward/record.url?scp=85137006956&partnerID=8YFLogxK
U2 - 10.3390/w14152321
DO - 10.3390/w14152321
M3 - Article
AN - SCOPUS:85137006956
SN - 2073-4441
VL - 14
JO - Water (Switzerland)
JF - Water (Switzerland)
IS - 15
M1 - 2321
ER -