TY - JOUR
T1 - Comparative adsorption of tetracycline onto unmodified and NaOH-modified silicomanganese fumes
T2 - Kinetic and process modeling
AU - Manzar, Mohammad Saood
AU - Ahmad, Tauqir
AU - Zubair, Mukarram
AU - Ullah, Nisar
AU - Alqahtani, Hissah A.
AU - da Gama, Brigida Maria V.
AU - Georgin, Jordana
AU - Nasir, Muhammad
AU - Mu'azu, Nuhu Dalhat
AU - Al Ghamdi, Jwaher M.
AU - Aziz, Hamidi Abdul
AU - Meili, Lucas
N1 - Publisher Copyright:
© 2023 Institution of Chemical Engineers
PY - 2023/4
Y1 - 2023/4
N2 - Silicomanganese fumes (SMF) are industrial waste and a potential low-cost adsorbent for the removal of contaminants from water. In this study, the adsorption performance of SMF and NaOH-modified SMF (SMF-Na) for the removal of tetracycline (TC) from an aqueous solution was investigated. The characterization results showed the presence of functional groups (SiO2, -OH and C-O-C), a considerably higher surface area of the SMF-Na (142.59 m2 g−1) compared to the SMF (7.73 m2 g−1). The TC adsorption was favored under acidic conditions (pH 2–3) and increased with an increasing amount of adsorbent. The adsorption equilibrium was achieved in 360 min, and the presence of Na+ ions insignificantly influenced the TC adsorption. The Avrami model fitted better to the kinetic data with R2 = 0.995. The isothermal data was well represented by the Redlich-Peterson and Langmuir model. The maximum monolayer adsorption capacity of SMF and SMF-Na was 117 and 129 mg g−1, respectively. The thermodynamic results confirmed that the TC adsorption was endothermic and predominantly governed by physical forces. The removal of TC onto SMF and SMF-Na was maintained above 90 % even after five regeneration cycles The results suggested that SMF-Na is a promising alternative adsorbent for the removal of tetracycline antibiotics from wastewater streams.
AB - Silicomanganese fumes (SMF) are industrial waste and a potential low-cost adsorbent for the removal of contaminants from water. In this study, the adsorption performance of SMF and NaOH-modified SMF (SMF-Na) for the removal of tetracycline (TC) from an aqueous solution was investigated. The characterization results showed the presence of functional groups (SiO2, -OH and C-O-C), a considerably higher surface area of the SMF-Na (142.59 m2 g−1) compared to the SMF (7.73 m2 g−1). The TC adsorption was favored under acidic conditions (pH 2–3) and increased with an increasing amount of adsorbent. The adsorption equilibrium was achieved in 360 min, and the presence of Na+ ions insignificantly influenced the TC adsorption. The Avrami model fitted better to the kinetic data with R2 = 0.995. The isothermal data was well represented by the Redlich-Peterson and Langmuir model. The maximum monolayer adsorption capacity of SMF and SMF-Na was 117 and 129 mg g−1, respectively. The thermodynamic results confirmed that the TC adsorption was endothermic and predominantly governed by physical forces. The removal of TC onto SMF and SMF-Na was maintained above 90 % even after five regeneration cycles The results suggested that SMF-Na is a promising alternative adsorbent for the removal of tetracycline antibiotics from wastewater streams.
KW - Adsorption
KW - Antibiotic removal
KW - Kinetic and isotherm modeling
KW - Silicomanganese fumes
KW - Tetracycline
UR - http://www.scopus.com/inward/record.url?scp=85150057853&partnerID=8YFLogxK
U2 - 10.1016/j.cherd.2023.02.047
DO - 10.1016/j.cherd.2023.02.047
M3 - Article
AN - SCOPUS:85150057853
SN - 0263-8762
VL - 192
SP - 521
EP - 533
JO - Chemical Engineering Research and Design
JF - Chemical Engineering Research and Design
ER -
