TY - JOUR
T1 - Mitigation of atrazine pesticide from aqueous media using banana stem-derived activated carbon
T2 - batch, column, and regeneration studies
AU - Amidu, Habib
AU - Kiti, Joseph
AU - Annan, Ebenezer
AU - Arkorful, Grace Karikari
AU - Asimeng, Bernard Owusu
AU - Hodasi, Joanna Aba Modupeh
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.
PY - 2025/10
Y1 - 2025/10
N2 - This study evaluates the potential of activated carbon derived from banana stem (BSAC), a readily available agro-waste, to act as an adsorbent in the removal of the widely used pesticide atrazine from contaminated water. Batch experiments demonstrated a maximum removal efficiency of 85.36% within 60 min under optimal conditions. Adsorption kinetics and equilibrium analyses revealed that the adsorption mechanism followed a pseudo-second-order (PSO) kinetic model and the Langmuir isotherm model, indicating chemisorption and monolayer adsorption behavior. The column adsorption studies had the adsorbent BSAC’s show 80% removal efficiency at an adsorbent bed height of 6 cm. Kinetic analyses of column data using Thomas, Adams-Bohart, and Yoon-Nelson models revealed that the Thomas model provided the best fit, highlighting chemisorption as the controlling mechanism. Regeneration experiments showed that BSAC can be partially regenerated, achieving a desorption efficiency of 66.45%. Given its readily availability, cost-effectiveness, very good adsorption capacity, and reusability potential, BSAC emerges as an attractive, eco-friendly alternative for atrazine mitigation in water treatment applications.
AB - This study evaluates the potential of activated carbon derived from banana stem (BSAC), a readily available agro-waste, to act as an adsorbent in the removal of the widely used pesticide atrazine from contaminated water. Batch experiments demonstrated a maximum removal efficiency of 85.36% within 60 min under optimal conditions. Adsorption kinetics and equilibrium analyses revealed that the adsorption mechanism followed a pseudo-second-order (PSO) kinetic model and the Langmuir isotherm model, indicating chemisorption and monolayer adsorption behavior. The column adsorption studies had the adsorbent BSAC’s show 80% removal efficiency at an adsorbent bed height of 6 cm. Kinetic analyses of column data using Thomas, Adams-Bohart, and Yoon-Nelson models revealed that the Thomas model provided the best fit, highlighting chemisorption as the controlling mechanism. Regeneration experiments showed that BSAC can be partially regenerated, achieving a desorption efficiency of 66.45%. Given its readily availability, cost-effectiveness, very good adsorption capacity, and reusability potential, BSAC emerges as an attractive, eco-friendly alternative for atrazine mitigation in water treatment applications.
KW - Adsorption
KW - Atrazine removal
KW - Banana stem activated carbon
KW - Column studies
KW - Kinetic and equilibrium modeling
KW - Regeneration
KW - Sustainable adsorbents
UR - https://www.scopus.com/pages/publications/105022289613
U2 - 10.1007/s11356-025-37104-w
DO - 10.1007/s11356-025-37104-w
M3 - Article
AN - SCOPUS:105022289613
SN - 0944-1344
VL - 32
SP - 26450
EP - 26467
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 46
ER -