Removal of Zinc ions from water and wastewater using low cost adsorbents like Red mud and Fly ash.

Removal of Zinc ions from water and wastewater using low cost adsorbents like Red mud and Fly ash.
Author(s):
Dr P P Vishwakarma
Keywords:
Adsorption, Zinc, Red mud, Fly ash, UV Visible Spectrophotometer, pH
Abstract
Water is one of the most important renewable natural resources needed to sustain life on Earth. Increased concentrations of heavy metals such as zinc are affecting biological life. Most sanitation measures to remove contaminants from water are expensive and uneconomical. Adsorption is widely used for the removal of toxic metals due to its high removal rate, simplicity, and effectiveness. In this paper, we compared the efficiency of removing zinc metal from water using a spectrophotometer to remove Red mud and Fly ash. We investigated the effects of various parameters, such as pH, adsorbent dosage, initial concentration, and contact time. The maximum removal efficiencies of metallic zinc were 86% and 84%, respectively, using the Red mud and Fly ash as adsorbents. The Freundlich and Langmuir isotherms were plotted and the Langmuir isotherm was found to be the best model, with a correlation coefficient (R²) value of 0.9810.
Article Details
Unique Paper ID: 154920 Publication Volume & Issue: Volume 8, Issue 12 Page(s): 760 - 765
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