Sustainable Removal of Dyes from Wastewater Using Eggshell-Derived Calcium Carbonate Nanoparticles: Adsorption Isotherms, Kinetics, and Thermodynamic Analysis Supporting Sustainable Development Goals (SDGs)
Kargule B.B. Al-Asadi M. Al-Anssari S. Aljibori H.S.S. Hamzah H.T. Tastambek K.T. Abdullah T.A. Abdullah O.I.
September 2025Universitas Pendidikan Indonesia
ASEAN Journal of Science and Engineering
2025#5Issue 2369 - 394 pp.
This study explores eggshell waste as a low-cost, eco-friendly adsorbent for removing Aniline Blue dye from water. Batch and continuous experiments under various conditions showed effective performance. FTIR and SEM analyses confirmed porosity and functional groups. The adsorption followed the Sips isotherm and pseudo-first-order kinetics. The porous calcium carbonate structure enhanced dye removal. Thermodynamic results indicated an endothermic and spontaneous process. Lower flow rates improved performance in fixed-bed columns. The study supporting environmentally friendly solutions aligned with the Sustainable Development Goals (SDGs).
Aniline blue , Batch , Chemical cleaning Eggshell , Isotherm , Kinetic
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University of Mashreq, Baghdad, Iraq
University of Misan, Misan, Iraq
Al-Naji University, Baghdad, Iraq
University of Baghdad, Baghdad, Iraq
University of Warith Al-Anbiyaa, Karbala, Iraq
Andhra University, Visakhapatnam, India
Khoja Akhmet Yassawi International Kazakh Turkish University, Turkistan, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
University of Technology, Baghdad, Iraq
University of Mashreq
University of Misan
Al-Naji University
University of Baghdad
University of Warith Al-Anbiyaa
Andhra University
Khoja Akhmet Yassawi International Kazakh Turkish University
Al-Farabi Kazakh National University
University of Technology
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