Studies on adsorptive removal of Co(II), Cr(III) and Ni(II) by IRN77 cation-exchange resin.
The adsorption of cobalt, chromium and nickel from aqueous solutions on IRN77 cation-exchange resin has been studied comparatively. The percentage removal of cobalt, chromium and nickel was examined by varying experimental conditions, viz. dosage of adsorbent, pH of the solution and contact time. It was found that more than 95% removal was achieved under optimal conditions. The adsorption capacity (k) for cobalt, chromium and nickel were calculated from the Freundlich adsorption isotherm. The adsorption of cobalt, chromium and nickel on this cation-exchange resin followed the Lagergren kinetic model. Also the competitive adsorption of multi-metals onto the IRN77 resin was studied. The studies showed that this cation-exchange resin can be used as an efficient adsorbent material for the removal of cobalt, chromium and nickel from water and nuclear power plant coolant water.
Rengaraj
S
S
Department of Environmental Science and Engineering, Kwangju Institute of Science and Technology, 1 Oryong dong, Puk-gu, 500-712, Kwangju, South Korea.
Yeon
Kyeong Ho
KH
Kang
So Young
SY
Lee
Jong Un
JU
Kim
Kyung Woong
KW
Moon
Seung Hyeon
SH
D000327:Adsorption; D002411:Cation Exchange Resins / Q000737:chemistry*; D002857:Chromium / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D009532:Nickel / Q000737:chemistry*; D014876:Water Pollution / Q000517:prevention & control*
D002411:Cation Exchange Resins; D002857:Chromium; D003035:Cobalt; D009532:Nickel