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OPTIMIZATION AND CHARACTERIZATION OF ADSORPTIVE BEHAVIOR OF PENTACLETHRA MACROPHYLLA ACTIVATED CARBON ON AQUEOUS SOLUTION

Year 2017, Volume: 35 Issue: 2, 213 - 226, 01.06.2017

Abstract

Biosorption potentials of activated carbons from pentaclethra Macrophylla (PMAC) seed shells for the removal of Pb(II) from aqueous solution were investigated. The physicochemical properties of pentaclethra Macrophylla (PMAC) seed shells were characterized through ASTM standards for adsorbents tests. The functional groups of the pentaclethra Macrophylla (PMAC) were investigated using Fourier transform infrared (FTIR) spectroscopy, morphology measured with scanning electron microscopy (SEM),oxides investigated by X-ray fluorescence (XRF) and diffraction pattern observed by x-ray diffraction (XRD). Influence of key parameters such as contact time, pH of Pb(II) solution, temperature of Pb(II) solution, adsorbent dosage, adsorbent particle size and initial concentration of Pb(II)solution were studied by batch mode. These process parameters were optimized using response surface methodology (RSM) and analysis of variance (ANOVA). The significance of the different process parameters and their combined effects on the adsorption efficiency were established through a full factorial central composite design. The results obtained are in good agreement with published data for other activated carbons as well as various international standards for water treatment. An optimal yield of 94.83% was obtained with optimal conditions of solution temperature, 30oC; contact time, 120minutes; adsorbent dosage, 1.50 g; and pH, 7. The optimization was performed using the numerical method of the Design Expert version 8.7.1.0 by State Ease U.S.A. This investigation has shown that Pentaclethra Macrophylla (PMAC) seed shells from Nigeria can be used for industries as activated carbon for waste water treatment.

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There are 20 citations in total.

Details

Primary Language English
Journal Section Research Articles
Authors

Okey-onyesolu Chinenye Faith This is me

Ude Callistus Nonso This is me

Onukwuli Okechukwu Dominic This is me

Okoye Chukwunonso Chukwuzuloke This is me

Publication Date June 1, 2017
Submission Date November 3, 2016
Published in Issue Year 2017 Volume: 35 Issue: 2

Cite

Vancouver Faith O-oC, Nonso UC, Dominic OO, Chukwuzuloke OC. OPTIMIZATION AND CHARACTERIZATION OF ADSORPTIVE BEHAVIOR OF PENTACLETHRA MACROPHYLLA ACTIVATED CARBON ON AQUEOUS SOLUTION. SIGMA. 2017;35(2):213-26.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/