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Today heavy metals and dyes are regarded as one of the most serious issues related to the environment. Their contamination is an issue of serious concern because it has been posing a health threat to millions of people. It is important to develop technologies available for pollutants removal. Generally, these technologies should be cost-effective, highly efficient, and easy to handle. Additionally, it is expected that the technology should avoid the water quality deterioration, even in the case of improper operation by a local operator who is not well trained. In this book the author made...

In this book, the author studied the removal of Au(III) and Ag(I) on a chemically modified chitosan (R1) with Schiff's base of thiourea/glutaraldehyde in the presence of magnetite. The selective separation of Hg(II) using magnetic chitosan resin modified with Schiff's base derived from thiourea and glutaraldehyde (R1) has been studied. The removal of Mo(VI) as oxyanions from aqueous solutions was studied using magnetic chitosan resins chemically modified through the reaction with tetraethylenepentamine followed by glycidyl trimethylammonium chlorid to produce chitosan bearing amine (R2) and...

The author studied the preparation of chelating resins with amine, thio and amine/mercaptan and iminoacetic acid functionalities based on Glycidyl methacrylate-divinylbenzene resin. The resins showed a powerful adsorption behavior towards transition and non-transition metal ions such as Au(III), Hg(II), Ca(II), Mg(II), Cd(II), Zn(II)...etc. The mechanism of interaction between metal ions and resin active sites were clarified. The nature of interaction between the metal ion and the resin was found to be dependent upon the acidity of the medium as well as the type of the conjugate anion.This...