TY - JOUR
T1 - Kinetics of removal of chromium from water and electronic process wastewater by ion exchange resins
T2 - 1200H, 1500H and IRN97H
AU - Rengaraj, S.
AU - Joo, Cheol Kyun
AU - Kim, Younghun
AU - Yi, Jongheop
N1 - Funding Information:
The authors gratefully acknowledge the funding of this research from NRL and BK21 program by the Ministry of Education and Human Resources Development, Korea.
PY - 2003/8/29
Y1 - 2003/8/29
N2 - The removal of chromium from aqueous solution by an ion exchange resin is described. Ion exchange resins 1200H, 1500H and IRN97H show a remarkable increase in sorption capacity for chromium, compared to other adsorbents. The adsorption process, which is pH dependent show maximum removal of chromium in the pH range 2-6 for an initial chromium concentration of 10mg/l. The metal ion adsorption obeyed linear, Langmuir and Freundlich isotherms. The adsorption of chromium on these cation exchange resins follows first-order reversible kinetics and pseudo-first-order kinetics. The intraparticle diffusion of chromium on ion exchange resins represents the rate-limiting step. The uptake of chromium by the ion exchange resins was reversible and thus have good potential for the removal/recovery of chromium from aqueous solutions. We conclude that such ion exchange resins can be used for the efficient removal of chromium from water and wastewater.
AB - The removal of chromium from aqueous solution by an ion exchange resin is described. Ion exchange resins 1200H, 1500H and IRN97H show a remarkable increase in sorption capacity for chromium, compared to other adsorbents. The adsorption process, which is pH dependent show maximum removal of chromium in the pH range 2-6 for an initial chromium concentration of 10mg/l. The metal ion adsorption obeyed linear, Langmuir and Freundlich isotherms. The adsorption of chromium on these cation exchange resins follows first-order reversible kinetics and pseudo-first-order kinetics. The intraparticle diffusion of chromium on ion exchange resins represents the rate-limiting step. The uptake of chromium by the ion exchange resins was reversible and thus have good potential for the removal/recovery of chromium from aqueous solutions. We conclude that such ion exchange resins can be used for the efficient removal of chromium from water and wastewater.
KW - Adsorption dynamics
KW - Adsorption isotherms
KW - Adsorption kinetics
KW - Chromium
KW - Electronic process wastewater
KW - Intraparticle diffusion
KW - Ion exchange resin
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U2 - 10.1016/S0304-3894(03)00209-7
DO - 10.1016/S0304-3894(03)00209-7
M3 - Article
C2 - 12972242
AN - SCOPUS:0041834721
SN - 0304-3894
VL - 102
SP - 257
EP - 275
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 2-3
ER -