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Heavy metal ions
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Characterization for the interaction of nickel(II) and copper(II) from aqueous solutions with natural silicate minerals
This paper describes the interaction and removal of some heavy metal ions such as Ni(II) and Cu(II) from aqueous solution at constant pH (6.0) and 0.01 M NaClO4 ionic strength using raw clay mineral. Th ...
Desalination 244 (2009)
... presence of one or two additional ions in the solution is considered. In this case the application of a neural network MLP was proposed. Keywords: Heavy metal ions; Adsorption; Selectivity 1. Introduction Heavy metals are the metals whose density is greater than 5 g/cm3, e.g. Fe, Cu, Zn, Pb, Hg, Cd ...
Desalination 218 (2008)
Sorption of heavy metal ions from aqueous solutions in the presence of EDTA on monodisperse anion exchangers
... new, effective methods exploiting cheap, accessible and ecologically safe ion exchangers and sorbents. The paper presents the studies on removal of heavy metal ions — Cu(II), Zn(II), Co(II), Ni(II) and Fe(III) — from aqueous solutions in the presence of EDTA carried out on commercially available ...
Desalination 227 (2008)
Effects of operating parameters on efficiency of cadmium and zinc removal by the complexation–filtration process
A process for purifying wastewaters containing heavy and toxic metals such as cadmium and zinc by the complexation–filtration process was studied. From previous research, diethylaminoethyl cellulose... indicate a considerable influence of the pH of the solution on the rejection coefficient. Also, the complexing ability of DEAE23 towards zinc ions is higher than towards cadmium ions. An increase of the concentration of the complexing agent at constant initial concentration of metal increase ...
Desalination 198 (2006)
Fibrous ion exchangers (FIBAN) have been studied in a model process of water softening and removal from water simultaneously present heavy metal ions: Co2+, Ni2+, Zn2+, Cd2+, Cu2+, Pb2+. The effect of the following factors on the efficiency of Ca2+ removal from a model solution ha ...
Desalination 124 (1999)
The work presented in this paper deals with the investigations on the effect of heavy metal ions, e.g., Cu and Ni, on the localized corrosion behavior of carbon steel and SS 316L under different experimental conditions. The importan ...
Desalination 217 (2007)
... be drastically reduced. As an added benefit the nitrate load of the remaining waste water was also decreased. Keywords: Nanofiltration; Nitric acid; Heavy metal ions; Lead 1. Introduction It is often the case that picture tubes can be deemed to be fault free only after a final functional test. If the ...
Desalination 145 (2002)
Studies of application of monodisperse anion exchangers in sorption of heavy metal complexes with IDS
Economical progress and increase in population result in an increase of sewage and wastewaters containing heavy metal ions. The ion exchange method is applied for removal of toxic metal ions and organic pollutants from drinking, underground and surface water ...
Desalination 239 (2009)