Ion Exchange Extraction of Heavy Metal Ions from Wastewater

The study of various parameters affecting the ion exchange of Cu2+, Zn2+, Ni2+, Cd2+, and Pb2+ from aqueous solution on Dowex 50W synthetic resin

“…10.052 and so on. Certain general rules for cation exchange are: (i) the exchanger prefers ions of high charge, (ii) ions of small hydrated volume are preferred and (iii) ions, which interacts strongly with the functional groups of the exchangers are preferred [14][15][16][17][18][19].…”

Ion-exchange of Pb2+, Cu2+, Zn2+, Cd2+, and Ni2+ ions from aqueous solution by Lewatit CNP 80

“…The most important technologies for toxic ion removal or to reduce the concentration of metal ion in aqueous water are chemical precipitation, ion-exchange, phytoextraction, ultra filtration, reverse osmosis, and electro dialysis and sorption [7][8][9][10][11][12][13][14][15]. Nevertheless, many of these approaches can be marginally cost effective or difficult to implement in developing countries.…”

“…The increasing accumulation of Pb 2+ , Cu 2+ , Zn 2+ , Cd 2+ , and Ni 2+ in the environment from industrial outputs has caused great concern [1][2][3]. Pb 2+ , Cu 2+ , Zn 2+ , Cd 2+ , and Ni 2+ ions are a common pollutant introduced into natural waters from a variety of industrial wastewaters including those from the textile, leather tanning, electroplating and metal finishing industries [2][3][4][5][6][7].…”

A comparative study on Pb2+, Zn2+ and Cd2+ sorption onto zirconium phosphate supported by a cation exchanger

“…Several technologies have been currently proposed in industry in response to the problem such as chemical precipitation [2], solvent extraction [3], adsorption [4] and ion exchange [5][6][7]. Recently, ion exchange has been remarkably extended by the invention and application of new organic and inorganic ion exchangers [8][9][10][11].…”