TY - JOUR
T1 - Removal of Cr(III) from tannery wastewater using Citrus aurantium (grapefruit peel) as biosorbent
AU - Rabago-Velasquez, Zaida
AU - Patiño-Saldivar, Laura
AU - Ardila A., Alba N.
AU - Talavera-Lopez, Alfonso
AU - Salazar-Hernández, Mercedes
AU - Hernández-Soto, Rosa
AU - Hernández, José A.
N1 - Publisher Copyright:
© 2023 Desalination Publications. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Tanneries that use Cr(III) in their processes are among the industries that can cause environmental contamination by this heavy metal. Therefore, the use of grapefruit peel (GP) as a novel biosorbent for removal was investigated Cr(III) GP was treated with water grapefruit peel (WGP) and methanol grapefruit peel (MGP), considering parameters such as pH, contact time and initial concentration of Cr and evaluating their effect on biosorption. The adsorption capacity at a pH of 2.74 for WGP and MGP achieved 85.75% and 96.60%, respectively. Freundlich model indicated an adsorption favorable heterogeneous chemical process. The kinetic study indicated that Cr removal is due to simultaneous physicochemical processes. The analysis of attenuated total reflectance-Fou-rier-transform infrared spectroscopy showed the presence of pectin, lignin and cellulose that helps adsorption due to the participation of their functional groups. X-ray diffraction and scanning electron microscopy-energy-dispersive X-ray spectroscopy analysis found that the adsorption of Cr on the surface caused significant changes in the network parameter, which confirmed that there is an ions substitution between Ca and Cr at the biosorbent surface.
AB - Tanneries that use Cr(III) in their processes are among the industries that can cause environmental contamination by this heavy metal. Therefore, the use of grapefruit peel (GP) as a novel biosorbent for removal was investigated Cr(III) GP was treated with water grapefruit peel (WGP) and methanol grapefruit peel (MGP), considering parameters such as pH, contact time and initial concentration of Cr and evaluating their effect on biosorption. The adsorption capacity at a pH of 2.74 for WGP and MGP achieved 85.75% and 96.60%, respectively. Freundlich model indicated an adsorption favorable heterogeneous chemical process. The kinetic study indicated that Cr removal is due to simultaneous physicochemical processes. The analysis of attenuated total reflectance-Fou-rier-transform infrared spectroscopy showed the presence of pectin, lignin and cellulose that helps adsorption due to the participation of their functional groups. X-ray diffraction and scanning electron microscopy-energy-dispersive X-ray spectroscopy analysis found that the adsorption of Cr on the surface caused significant changes in the network parameter, which confirmed that there is an ions substitution between Ca and Cr at the biosorbent surface.
KW - Bioadsorbent
KW - Biosorption
KW - Ion-exchange
KW - Removal of chromium
KW - Removal of metals
UR - http://www.scopus.com/inward/record.url?scp=85153505825&partnerID=8YFLogxK
U2 - 10.5004/dwt.2023.29193
DO - 10.5004/dwt.2023.29193
M3 - Artículo
AN - SCOPUS:85153505825
SN - 1944-3994
VL - 283
SP - 36
EP - 49
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
ER -