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Utilizing Agricultural Waste for Sustainable Remediation of Textile Dyeing Effluents
 
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1
Laboratory of Physical Chemistry, Materials and Environment, Faculty of Sciences and Technologies, Moulay Ismail University of Meknes, 52000, Errachidia, Morocco.
 
2
Laboratory of Materials Engineering for the Environment and Natural Resources, Faculty of Sciences and Technologies, Moulay Ismail University of Meknes, 52000, Errachidia, Morocco.
 
3
Laboratory of Mechanics, Energetics, Automation, and Sustainable Development, Faculty of Sciences and Technologies, Moulay Ismail University of Meknes, 52000, Errachidia, Morocco.
 
4
Laboratory of Biomolecular and Macromolecular Chemistry, Faculty of Sciences, Moulay Ismail University of Meknes, 11201, Meknes, Morocco.
 
 
Corresponding author
Rajae GHIBATE   

Laboratory of Physical Chemistry, Materials and Environment, Faculty of Sciences and Technologies, Moulay Ismail University of Meknes, 52000, Errachidia, Morocco.
 
 
Ecol. Eng. Environ. Technol. 2024; 7
 
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ABSTRACT
The primary focus of the current investigation was to assess the removal of Rhodamine B dye (RhB) from aqueous solutions using pomegranate peel as a green adsorbent. The chemical and morphological characterization of pomegranate peel was conducted through ATR-FTIR spectroscopy and SEM microscopy. The study also investigated various reactional parameters, kinetic, and adsorption isotherm in a batch system. The results revealed that RhB adsorption reaches equilibrium in about 2 hours, with an adsorption capacity of 19.41 mg/g observed at a 50 mg/L of initial RhB concentration. To model the kinetic of RhB adsorption, two well-known models (pseudo-first order and pseudo-second order) were applied. The pseudo-second-order model yielded a superior fit for the kinetic data, as evidenced by analyses of R², RMSE, ARE, and χ² values. Additionally, the findings suggest that the adsorption process is not solely governed by intraparticle diffusion. Furthermore, isotherm analysis revealed that the Langmuir model offered a more accurate fit to the equilibrium data, estimating the maximum removal capacity to be 47.17 mg/g. These findings suggest that pomegranate peel offers a promisingly eco-friendly and cost-effective solution for sustainable remediation of textile dyeing effluents.
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