Lead removal from wastewater using fluted pumpkin seed shell activated carbon: Adsorption modeling and kinetics
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...
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| Veröffentlicht in: | International journal of environmental science and technology (Tehran) 2010-09, Vol.7 (4), p.793-800 |
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| creator | Okoye, A. I. Ejikeme, P. M. Onukwuli, O. D. |
| description | 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 200 mg/L solute concentration was 14.286 mg/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
6
cm
2
/s. From the plots, the linear regression coefficient (R
2
) of the Langmuir model was higher than that of the Freundlich: the adsorption isotherm obeyed the Langmuir model better than the Freundlich model. |
| doi_str_mv | 10.1007/BF03326188 |
| format | Article |
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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 200 mg/L solute concentration was 14.286 mg/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
6
cm
2
/s. From the plots, the linear regression coefficient (R
2
) of the Langmuir model was higher than that of the Freundlich: the adsorption isotherm obeyed the Langmuir model better than the Freundlich model.</description><identifier>ISSN: 1735-1472</identifier><identifier>EISSN: 1735-2630</identifier><identifier>DOI: 10.1007/BF03326188</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Adsorption ; Aquatic Pollution ; Diffusion ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Science and Engineering ; Kinetics ; Lead ; Soil Science & Conservation ; Waste Water Technology ; Water Management ; Water Pollution Control ; Water treatment</subject><ispartof>International journal of environmental science and technology (Tehran), 2010-09, Vol.7 (4), p.793-800</ispartof><rights>Islamic Azad University 2010</rights><rights>Copyright International Journal of Environmental Science and Technology Autumn 2010</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c394t-8d5b3c114e098f355ec0f8b819c5a6fcbd7ace29d0d505c553df4071420dc3543</citedby><cites>FETCH-LOGICAL-c394t-8d5b3c114e098f355ec0f8b819c5a6fcbd7ace29d0d505c553df4071420dc3543</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/BF03326188$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/BF03326188$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,782,786,27933,27934,41497,42566,51328</link.rule.ids></links><search><creatorcontrib>Okoye, A. I.</creatorcontrib><creatorcontrib>Ejikeme, P. M.</creatorcontrib><creatorcontrib>Onukwuli, O. D.</creatorcontrib><title>Lead removal from wastewater using fluted pumpkin seed shell activated carbon: Adsorption modeling and kinetics</title><title>International journal of environmental science and technology (Tehran)</title><addtitle>Int. J. Environ. Sci. Technol</addtitle><description>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 200 mg/L solute concentration was 14.286 mg/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
6
cm
2
/s. From the plots, the linear regression coefficient (R
2
) of the Langmuir model was higher than that of the Freundlich: the adsorption isotherm obeyed the Langmuir model better than the Freundlich model.</description><subject>Adsorption</subject><subject>Aquatic Pollution</subject><subject>Diffusion</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Science and Engineering</subject><subject>Kinetics</subject><subject>Lead</subject><subject>Soil Science & Conservation</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Water treatment</subject><issn>1735-1472</issn><issn>1735-2630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqNkU1Lw0AQhhdRsFYv_oLFi6BE9zMf3mqxKhS86DlsdmdrapKNu0mL_96EFgTx4GlmmOd9meFF6JySG0pIcnu_IJyzmKbpAZrQhMuIxZwc7nsqEnaMTkJYEyJiIegEuSUogz3UbqMqbL2r8VaFDraqA4_7UDYrbKu-A4Pbvm4_ygYHGIbwDlWFle7KjRqXWvnCNXd4ZoLzbVe6BtfOQDXqVWPwIISu1OEUHVlVBTjb1yl6Wzy8zp-i5cvj83y2jDTPRBelRhZcUyqAZKnlUoImNi1SmmmpYqsLkygNLDPESCK1lNxYQRIqGDGaS8Gn6HLn23r32UPo8roMerhZNeD6kKeSiySLM_4PkoqYSSoH8uIXuXa9b4Y38iRmnFEmRrurHaS9C8GDzVtf1sp_5ZTkY0b5T0YDfL2DwwA1K_A_jn_Q35Likd8</recordid><startdate>20100901</startdate><enddate>20100901</enddate><creator>Okoye, A. 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I.</au><au>Ejikeme, P. M.</au><au>Onukwuli, O. D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lead removal from wastewater using fluted pumpkin seed shell activated carbon: Adsorption modeling and kinetics</atitle><jtitle>International journal of environmental science and technology (Tehran)</jtitle><stitle>Int. J. Environ. Sci. Technol</stitle><date>2010-09-01</date><risdate>2010</risdate><volume>7</volume><issue>4</issue><spage>793</spage><epage>800</epage><pages>793-800</pages><issn>1735-1472</issn><eissn>1735-2630</eissn><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 200 mg/L solute concentration was 14.286 mg/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
6
cm
2
/s. From the plots, the linear regression coefficient (R
2
) of the Langmuir model was higher than that of the Freundlich: the adsorption isotherm obeyed the Langmuir model better than the Freundlich model.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/BF03326188</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| source | Full-Text Journals in Chemistry (Open access); Springer journals; Alma/SFX Local Collection |
| subjects | Adsorption Aquatic Pollution Diffusion Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Science and Engineering Kinetics Lead Soil Science & Conservation Waste Water Technology Water Management Water Pollution Control Water treatment |
| title | Lead removal from wastewater using fluted pumpkin seed shell activated carbon: Adsorption modeling and kinetics |
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