Umesh Mishra, Supantha Paul
This article presents the sorption of zinc by a novel adsorbent derived from steel plant waste sludge. The objective of this study was to investigate the influence of process parameters such as pH, contact time, adsorbent dose, and the initial metal ion concentration on the removal of zinc ions from wastewater. Batch experiments were conducted to evaluate the adsorption potential of the waste sludge, with a maximum adsorption of 7.26 mg/g of Zn(II) achieved at an initial pH value of 5.0. The optimal particle size range of 75–150 μm was identified as yielding the best adsorption capacity. The pseudo-second-order rate equation demonstrated a better fit for the adsorption kinetic data compared to the pseudo-first-order rate equation. The study further involved testing equilibrium data against various adsorption isotherm models, including Langmuir, Freundlich, Redlich–Peterson, and Tempkin, with the Langmuir isotherm model being the most suitable. Results indicated that the characteristics of the prepared waste sludge are comparable to other technically and economically feasible adsorbents, notably activated carbon, thereby providing an environmentally benign solution for the treatment of zinc-contaminated wastewater.
@article{990be279-11ed-430f-9122-b7d35757dd13,
title={Removal of Zinc Ions from Wastewater using Industrial Waste Sludge: A Novel Approach},
author={Umesh Mishra and Supantha Paul},
year={2012},
language={en}
}TY - JOUR TI - Removal of Zinc Ions from Wastewater using Industrial Waste Sludge: A Novel Approach AU - Umesh Mishra AU - Supantha Paul PY - 2012 LA - en ER -
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