Studies on adsorption of Pb (II) and Hg (II) Ions from aqueous solution using modified chitosan as adsorbent

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International Journal of Development Research

Studies on adsorption of Pb (II) and Hg (II) Ions from aqueous solution using modified chitosan as adsorbent

Abstract: 

Toxic heavy metals are being discharged significantly into the aquatic ecosystems as a result of various industrial operations, causing serious concern, especially in the developing countries over the last few decades. Heavy metals are not biodegradable and hence, accumulate in the living beings, causing diseases and health disorders. It is imperative that these metal ions are removed from the aqueous medium before discharging into the environment. The objective of this project work is to study the adsorption of metal ions like Pb (II) and Hg (II) ions by using modified chitosan as a suitable adsorbent for their removal from the aqueous medium. Experimental data are collected to study the effect of various parameters such as adsorbent dosage, contact time, pH and initial metal-ion concentration, and the optimum conditions for these parameters have been evaluated. Studies on adsorption kinetics and adsorption isotherms have been carried out, and the best fitting models for the rate kinetics and isotherms have been proposed.

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