KINETICS OF ADSORPTION OF COPPER AND NICKEL IONS USING A RICE HUSK-BASED SORBENT

Authors

Aziza A. MAKSUDOVA, Tashkent Institute of Chemical Technology, Tashkent, UzbekistanFollow
Shukhrat A. MUTALOV, Angren University, Angren, UzbekistanFollow
Klara M. ADILOVA, Tashkent Institute of Chemical Technology, Tashkent, UzbekistanFollow

Abstract

The aim of this study is to investigate the adsorption kinetics of Cu(II) and Ni(II) ions from aqueous solutions using an adsorbent obtained by treating rice husk with a solution of monoethanolamine. The experiments evaluated the influence of contact time on the efficiency of metal ion removal and calculated the adsorption capacity. To analyze the adsorption process kinetics, pseudo-first-order and pseudo-second-order kinetic models were applied. The results demonstrated that the adsorption process follows the pseudo-second-order kinetic model. Thus, monoethanolamine-modified rice husk can be considered an effective, environmentally friendly, and economically viable sorbent for the removal of heavy metal ions from electroplating wastewater.

Recommended Citation

MAKSUDOVA, Aziza A.; MUTALOV, Shukhrat A.; and ADILOVA, Klara M. (2025) "KINETICS OF ADSORPTION OF COPPER AND NICKEL IONS USING A RICE HUSK-BASED SORBENT," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2025: No. 3, Article 6.
DOI: https://doi.org/10.70189/1992-9498.1683
Available at: https://cce.researchcommons.org/journal/vol2025/iss3/6