Heavy metal ion removal by amidoximated bagasse

Abstract

Amidoximated bagasse (Am-B) was prepared by treating sugarcane bagasse fibers with acrylonitrile in the presence of sodium hydroxide followed by aqueous hydroxyl amine. Adsorption of some heavy metal ions, namely, Cu(II), Hg(II), Ni(II), Cr(III), and Pb(II) on the prepared Am-B at different metal ion concentration, intervals, and temperatures was studied. Also, the selectivity of the prepared Am-B toward adsorption of the aforementioned metal ions in an equimolar mixture was studied. The effect of regeneration of Am-B using ethylenediamine tetraacetic acid disodium salt (EDTA), up to five times, on its adsorption capacity of the aforementioned metal ions was investigated.

Kinetics and thermodynamic of adsorption of chromium(VI) from aqueous solution using puresorbe

“…Electrostatic interactions have also been demonstrated to be responsible for Cr biosorption by Fungi Gonaderma lucidum and Aspergillus niger [16,17]. The major components of the lignocellulosic material contain functional groups such as carboxylates, phenolic and aliphatic hydroxyls and carbonyl groups with the ability to adsorb metals [18]. The adsorbent was prepared by treating the raw coir pith with superphosphate containing Ca 2+ , and Na + and K + as natural components of the coir pith.…”

Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by mercerized cellulose and mercerized sugarcane bagasse chemically modified with EDTA dianhydride (EDTAD)

“…However, there have been very few works on modification of sugarcane bagasse (Gupta & Ali, 2000, 2004Gurgel et al, 2008a;Hassan & El-Wakil, 2003;Ibrahim, Hanafiah, & Yahya, 2006;Karnitz et al, 2007;Krishnan & Anirudhan, 2002;Nada & Hassan, 2006). EDTAD, an active agent containing two anhydride groups per molecule, could react with hydroxyl groups of cellulose or lignin molecules in order to introduce chelating groups.…”

Synthesis of porous acrylonitrile/methyl acrylate copolymer beads by suspended emulsion polymerization and their adsorption properties after amidoximation

“…It is well known that heavy metal ions from industrial effluents have hazardous effect on different forms of life [1]. Therefore, many researches studied synthesis or modification of polymeric materials using different methods to overcome the difficulties facing the wastewater treatment process [2,3].…”