Removal of cadmium from aqueous solutions by adsorption on granular red mud (GRM)
By Chunlei Zhu, Z. Luan, Yanqi Wang, X. Shan. 2007
160 citations recorded by the source corpus.
Abstract This study puts forward a novel method to prepare granular red mud (GRM) and evaluates its potential use to remove cadmium ions from aqueous solutions as a low-cost adsorbent. The properties of the novel adsorbent were examined and then used for cadmium adsorption experiments. Batch experiments were conducted and equilibrium isotherms at different temperatures (20 °C, 30 °C, 40 °C) have been determined and analyzed with a Freundlich model. Kinetics data at initial pH 6.0 and 3.0 were fitted with Pseudo-second-order model and external mass transfer coefficients, effective particle diffusion coefficients were subsequently calculated for cadmium–GRM system at initial pH 6.0. Column breakthrough curves were depicted and the data were analyzed with a Thomas model. The column adsorption was reversal and the regeneration operation was accomplished by pumping 0.1 mol/L hydrochloric acid through the adsorbed column.
Subfields: Electrical and Electronic Engineering, Mechanical Engineering, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/eb4935b17d40c26d1da44ca2b91c473d24bed910
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In Electrical and Electronic Engineering
In Mechanical Engineering
In Water Science and Technology
Citations in the corpus
- Review on treatment and utilization of bauxite residues in China (2009, methodology): “Zhu et al. (2007) prepared granular red mud ceramics and evaluated its potential use to remove cadmium ions from aqueous solutions as a low-cost adsorbent.”
- Review on cadmium removal from aqueous solutions (2011, methodology): “Granular red mud (GRM) was evaluated for its potential to remove cadmium ions from aqueous solutions as a low-cost adsorbent (Zhu et al., 2007).”