Separation of metal ions on a modified aluminium oxide

Poly(ethylene glycol dimethacrylate-n-vinyl imidazole) beads for heavy metal removal

“…Heavy metals are released into the environment in a number of different ways. Coal combustion, sewage waste-waters, automobile emissions, battery industry, mining activities, tanneries, alloy industries and the utilization of fossile fuels are just a few examples [4]. Numerous research efforts are being done to develop methods to remove heavy metal ions, particularly in waste streams of hydrometallurgy and related industries, and to subsequently reuse them.…”

Dye‐affinity microbeads for removal of phenols and nitrophenols from aquatic systems

“…10 Specific adsorbents consist of a ligand (e.g., ion-exchange material) that specifically interacts with the organic and inorganic pollutants and a carrier matrix that may be an inorganic material (e.g., aluminum oxide, silica, or glass) or polymer microbeads [e.g., polystyrene, starch, chitosan, cellulose, poly(maleic anhydride), or poly(methyl methacrylate)]. [11][12][13][14][15][16] A wide variety of complexing agents may be used as ligands in the design of novel adsorbents. 6 -16 These ligands are extremely specific in most cases.…”

Preparation and Characterization of the Newly Synthesized Metal-Complexing-Ligand N-Methacryloylhistidine Having PHEMA Beads for Heavy Metal Removal from Aqueous Solutions

“…Adsorption capacity of the beads for the selected metal ions, i. e., Cu(II), Cd(II), Cr(III), Hg(II) and Pb(II), were investigated in aqueous media containing different amounts of these ions (10- ples. [4] Many methods of treatment for industrial wastewaters have been reported in the literature, amongst these methods are precipitation, membrane filtration, neutralization, ion-exchange and co-precipitation/adsorption. [1][2][3][4] Among these techniques, adsorption is generally preferred for the removal of heavy metal ions due to its high efficiency, easy handling, availability of different adsorbents and cost effectiveness.…”

“…[4] Many methods of treatment for industrial wastewaters have been reported in the literature, amongst these methods are precipitation, membrane filtration, neutralization, ion-exchange and co-precipitation/adsorption. [1][2][3][4] Among these techniques, adsorption is generally preferred for the removal of heavy metal ions due to its high efficiency, easy handling, availability of different adsorbents and cost effectiveness. [5] The necessity to reduce the amount of heavy metal ions to acceptable levels in wastewater streams, and subsequent possible re-use of these metal ions, has led to an increasing interest in selective polymer adsorbents.…”