Abstract
Synthesis, characterization and analytical applications of chelating resin containing orcinol A chelating resin based on Salicylic acid-Formaldehyde copolymer, containing Orcinol (SFO), has been synthesized and characterized on the basis of Elemental Analysis, Particle Size Distribution, FT-IR Analysis, XRD, SEM and Optical Photographs. The Physico-Chemical properties have been studied. This resin is highly stable in acidic and alkaline solutions and has been studied as a chelating sorbent for heavy metal ions and transition metal ions. The Exchange capacity order is Ni(II) > Cu(II) > Zn(II) > Cd(II) > Pb(II). The effect of nature and concentration of different electrolytes on distribution coefficient (Kd) for metal ions have been investigated. Separation of synthetic mixtures containing Cu(II)-Pb(II), Ni(II)-Cd(II) and Brass constituents has been carried out using a column prepared from the synthesized chelating resin. The developed procedure was also tested for the removal of Cd(II) and Pb(II) from natural water of Purna River near by Navsari, Gujarat, India.
Highlights
Water pollution is a major environmental problem faced by modern society that leads to ecological disequilibrium and health hazards[1]
Many separation techniques using solvent extraction and ion exchange chromatography have been applied for this purpose
Separation techniques such as ion exchange, solvent extraction, extraction chromatography, electodeposition, solid phase extraction and coprecipitation have been successfully used for the separation and preconcentration of several metal ions[7,8]
Summary
Water pollution is a major environmental problem faced by modern society that leads to ecological disequilibrium and health hazards[1]. Park and Kim[4] synthesized chelating resins containing carboxylic acid by suspension polymerization of styrene, methyl methacrylate and divinylbenzene in the presence of toluene These resins were demonstrating good affinity for heavy metal ions like Pb(II), Cd(II) and Hg(II). The removal, separation and recovery of heavy metal ions from industrial wastewater have been a significant concern in all industrial branches owing to economic and environmental factors. Separation techniques such as ion exchange, solvent extraction, extraction chromatography, electodeposition, solid phase extraction and coprecipitation have been successfully used for the separation and preconcentration of several metal ions[7,8]
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