LEAD REMOVAL FROM WASTEWATER USING FLUTED PUMPKIN SEED SHELL ACTIVATED CARBON: ADSORPTION MODELING AND KINETICS

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OKOYE A.I.; EJIKEME P.M.; ONUKWULI O.D.

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Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2010 | Volume:7 | Issue:4 (28) Page(s): 793-800

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Title

LEAD REMOVAL FROM WASTEWATER USING FLUTED PUMPKIN SEED SHELL ACTIVATED CARBON: ADSORPTION MODELING AND KINETICS

Author(s)

OKOYE A.I. | EJIKEME P.M. | ONUKWULI O.D. | Issue Writer Certificate

Keywords

FILM DIFFUSION

INTRAPARTICLE DIFFUSION

ISOTHERM

KINETIC MODEL

LEAD (II) IONS

SORPTION

TELFAIRIA OCCIDENTALIS

Abstract

Activated carbon produced from fluted pumpkin (Telfairia occidentalis) seed shell was utilized for the removal of lead (II) ion from simulated wastewater. Adsorption tests were carried out in series of batch adsorption experiments. Several KINETIC MODELs (Bhattacharya-Venkobacher, Elovich, pseudo first and second order, intra-particle and FILM DIFFUSION) were tasted for conformity to the experimental data obtained. The Langmuir and Freundlich adsorption models were also used to test the data. The amount of lead (II) ion adsorbed at equilibrium from a 200mg/L solute concentration was 14.286mg/g. The experimental data conform very well to the pseudo-second order equation where equilibrium adsorption capacities increased with increasing initial lead (II) concentration. The rate of the adsorption process was controlled by the film (boundary layer) diffusion as the FILM DIFFUSION co-efficient values obtained from data analysis were of the order of 10 6cm2/s. From the plots, the linear regression coefficient (R2) of the Langmuir model was higher than that of the Freundlich: the adsorption ISOTHERM obeyed the Langmuir model better than the Freundlich model.

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APA: Copy

OKOYE, A.I., EJIKEME, P.M., & ONUKWULI, O.D.. (2010). LEAD REMOVAL FROM WASTEWATER USING FLUTED PUMPKIN SEED SHELL ACTIVATED CARBON: ADSORPTION MODELING AND KINETICS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 7(4 (28)), 793-800. SID. https://sid.ir/paper/285282/en

Vancouver: Copy

OKOYE A.I., EJIKEME P.M., ONUKWULI O.D.. LEAD REMOVAL FROM WASTEWATER USING FLUTED PUMPKIN SEED SHELL ACTIVATED CARBON: ADSORPTION MODELING AND KINETICS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2010;7(4 (28)):793-800. Available from: https://sid.ir/paper/285282/en

IEEE: Copy

A.I. OKOYE, P.M. EJIKEME, and O.D. ONUKWULI, “LEAD REMOVAL FROM WASTEWATER USING FLUTED PUMPKIN SEED SHELL ACTIVATED CARBON: ADSORPTION MODELING AND KINETICS,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 7, no. 4 (28), pp. 793–800, 2010, [Online]. Available: https://sid.ir/paper/285282/en

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