Equilibrium adsorption of chlorophenols on granular activated carbon
The adsorption of chlorinated phenols from aqueous solution on granular activated carbon was studied in batch reactors. Single-component equilibrium adsorption data for the eight compounds in two concentration ranges at pH 7.0 and 30°C were fit well by both the Langmuir and the Freundlich equations....
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| Veröffentlicht in: | Water environment research 1995-09, Vol.67 (6), p.892-898 |
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| container_title | Water environment research |
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| creator | Nelson, Peter O. Yang, Maoyu |
| description | The adsorption of chlorinated phenols from aqueous solution on granular activated carbon was studied in batch reactors. Single-component equilibrium adsorption data for the eight compounds in two concentration ranges at pH 7.0 and 30°C were fit well by both the Langmuir and the Freundlich equations. The adsorptive capacities at pH 7.0 increase from pentachlorophenol to trichlorophenols and are fairly constant from trichlorophenols to monochlorophenols. Equilibrium measurements were also conducted for 2,4,5-trichlorophenol, 2,4-dichlorophenol, and 4-chlorophenol over a wide pH range. A surface complexation model has been proposed to describe the effect of pH on adsorption equilibria of chlorophenols on activated carbon. Activated carbon surface functional sites are divided into acidic and basic groups with which molecular and ionized forms of chlorophenols interact, respectively, and form two neutral complexes. The simulations of the model are in excellent agreement with the experimental data. |
| doi_str_mv | 10.2175/106143095X133103 |
| format | Article |
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Single-component equilibrium adsorption data for the eight compounds in two concentration ranges at pH 7.0 and 30°C were fit well by both the Langmuir and the Freundlich equations. The adsorptive capacities at pH 7.0 increase from pentachlorophenol to trichlorophenols and are fairly constant from trichlorophenols to monochlorophenols. Equilibrium measurements were also conducted for 2,4,5-trichlorophenol, 2,4-dichlorophenol, and 4-chlorophenol over a wide pH range. A surface complexation model has been proposed to describe the effect of pH on adsorption equilibria of chlorophenols on activated carbon. Activated carbon surface functional sites are divided into acidic and basic groups with which molecular and ionized forms of chlorophenols interact, respectively, and form two neutral complexes. The simulations of the model are in excellent agreement with the experimental data.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143095X133103</identifier><language>eng</language><publisher>Alexandria, VA: Water Environment Federation</publisher><subject>ACTIVATED CARBON ; ADSORCION ; ADSORPTION ; Carbon ; CARBON ACTIVADO ; CHARBON ACTIF ; Chemistry ; chlorinated phenols ; CHLOROPHENOLS ; COMPOSE ORGANOCHLORE ; COMPOSE PHENOLIQUE ; COMPUESTO ORGANICO DEL CLORO ; COMPUESTOS FENOLICOS ; CONTAMINANTES ; DISPONIBILIDAD DE NUTRIENTES ; DISPONIBILITE D'ELEMENT NUTRITIF ; Exact sciences and technology ; General and physical chemistry ; ISOTHERMS ; NUTRIENT AVAILABILITY ; ORGANOCHLORINE COMPOUNDS ; Oxygen ; PHENOLIC COMPOUNDS ; Phenols ; Phosphates ; POLLUANT ; POLLUTANTS ; Research Papers ; Solid-liquid interface ; SORCION ; SORPTION ; SORPTION ISOTHERMS ; Surface physical chemistry</subject><ispartof>Water environment research, 1995-09, Vol.67 (6), p.892-898</ispartof><rights>Copyright 1995 The Water Environment Federation (WEF)</rights><rights>1995 Water Environment Federation</rights><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4542-892dcfd327dfcb7c42970d66989442d68e7636d07cbd9d4e93a928c24831cc893</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/25044641$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/25044641$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>315,782,786,805,27933,27934,58026,58259</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3669624$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Nelson, Peter O.</creatorcontrib><creatorcontrib>Yang, Maoyu</creatorcontrib><title>Equilibrium adsorption of chlorophenols on granular activated carbon</title><title>Water environment research</title><description>The adsorption of chlorinated phenols from aqueous solution on granular activated carbon was studied in batch reactors. Single-component equilibrium adsorption data for the eight compounds in two concentration ranges at pH 7.0 and 30°C were fit well by both the Langmuir and the Freundlich equations. The adsorptive capacities at pH 7.0 increase from pentachlorophenol to trichlorophenols and are fairly constant from trichlorophenols to monochlorophenols. Equilibrium measurements were also conducted for 2,4,5-trichlorophenol, 2,4-dichlorophenol, and 4-chlorophenol over a wide pH range. A surface complexation model has been proposed to describe the effect of pH on adsorption equilibria of chlorophenols on activated carbon. Activated carbon surface functional sites are divided into acidic and basic groups with which molecular and ionized forms of chlorophenols interact, respectively, and form two neutral complexes. The simulations of the model are in excellent agreement with the experimental data.</description><subject>ACTIVATED CARBON</subject><subject>ADSORCION</subject><subject>ADSORPTION</subject><subject>Carbon</subject><subject>CARBON ACTIVADO</subject><subject>CHARBON ACTIF</subject><subject>Chemistry</subject><subject>chlorinated phenols</subject><subject>CHLOROPHENOLS</subject><subject>COMPOSE ORGANOCHLORE</subject><subject>COMPOSE PHENOLIQUE</subject><subject>COMPUESTO ORGANICO DEL CLORO</subject><subject>COMPUESTOS FENOLICOS</subject><subject>CONTAMINANTES</subject><subject>DISPONIBILIDAD DE NUTRIENTES</subject><subject>DISPONIBILITE D'ELEMENT NUTRITIF</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>ISOTHERMS</subject><subject>NUTRIENT AVAILABILITY</subject><subject>ORGANOCHLORINE COMPOUNDS</subject><subject>Oxygen</subject><subject>PHENOLIC COMPOUNDS</subject><subject>Phenols</subject><subject>Phosphates</subject><subject>POLLUANT</subject><subject>POLLUTANTS</subject><subject>Research Papers</subject><subject>Solid-liquid interface</subject><subject>SORCION</subject><subject>SORPTION</subject><subject>SORPTION ISOTHERMS</subject><subject>Surface physical chemistry</subject><issn>1061-4303</issn><issn>1554-7531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqFkMtLxDAQxoso-LyLIPQg3qqTd3OUdX2AIPhAbyWbpJol2-wmreJ_b6SyBy-eJsz3_b7MTFEcIjjDSLBzBBxRApK9IkIQkI1iBzFGK8EI2szvLFdZJ9vFbkpzAIQx0J3icroanHez6IZFqUwKcdm70JWhLfW7DzEs320XfCpz7y2qbvAqlkr37kP11pRaxVno9outVvlkD37rXvF8NX2a3FR399e3k4u7SlNGcVVLbHRrCBam1TOhKZYCDOeylpRiw2srOOEGhJ4ZaaiVRElca0xrgrSuJdkrTsfcZQyrwaa-Wbikrfeqs2FIDRIAnEmUjTAadQwpRds2y-gWKn41CJqfczV_z5WRk99slbTybd5Vu7TmSB6TY5ptbLR9Om-__o1tXqYPkPfO3PHIzVMf4prDDCjl9Gfio1FvVWjUW8xfPz9KDpyDIN_ef4pt</recordid><startdate>199509</startdate><enddate>199509</enddate><creator>Nelson, Peter O.</creator><creator>Yang, Maoyu</creator><general>Water Environment Federation</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope></search><sort><creationdate>199509</creationdate><title>Equilibrium adsorption of chlorophenols on granular activated carbon</title><author>Nelson, Peter O. ; Yang, Maoyu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4542-892dcfd327dfcb7c42970d66989442d68e7636d07cbd9d4e93a928c24831cc893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>ACTIVATED CARBON</topic><topic>ADSORCION</topic><topic>ADSORPTION</topic><topic>Carbon</topic><topic>CARBON ACTIVADO</topic><topic>CHARBON ACTIF</topic><topic>Chemistry</topic><topic>chlorinated phenols</topic><topic>CHLOROPHENOLS</topic><topic>COMPOSE ORGANOCHLORE</topic><topic>COMPOSE PHENOLIQUE</topic><topic>COMPUESTO ORGANICO DEL CLORO</topic><topic>COMPUESTOS FENOLICOS</topic><topic>CONTAMINANTES</topic><topic>DISPONIBILIDAD DE NUTRIENTES</topic><topic>DISPONIBILITE D'ELEMENT NUTRITIF</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>ISOTHERMS</topic><topic>NUTRIENT AVAILABILITY</topic><topic>ORGANOCHLORINE COMPOUNDS</topic><topic>Oxygen</topic><topic>PHENOLIC COMPOUNDS</topic><topic>Phenols</topic><topic>Phosphates</topic><topic>POLLUANT</topic><topic>POLLUTANTS</topic><topic>Research Papers</topic><topic>Solid-liquid interface</topic><topic>SORCION</topic><topic>SORPTION</topic><topic>SORPTION ISOTHERMS</topic><topic>Surface physical chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nelson, Peter O.</creatorcontrib><creatorcontrib>Yang, Maoyu</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Water environment research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nelson, Peter O.</au><au>Yang, Maoyu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Equilibrium adsorption of chlorophenols on granular activated carbon</atitle><jtitle>Water environment research</jtitle><date>1995-09</date><risdate>1995</risdate><volume>67</volume><issue>6</issue><spage>892</spage><epage>898</epage><pages>892-898</pages><issn>1061-4303</issn><eissn>1554-7531</eissn><abstract>The adsorption of chlorinated phenols from aqueous solution on granular activated carbon was studied in batch reactors. Single-component equilibrium adsorption data for the eight compounds in two concentration ranges at pH 7.0 and 30°C were fit well by both the Langmuir and the Freundlich equations. The adsorptive capacities at pH 7.0 increase from pentachlorophenol to trichlorophenols and are fairly constant from trichlorophenols to monochlorophenols. Equilibrium measurements were also conducted for 2,4,5-trichlorophenol, 2,4-dichlorophenol, and 4-chlorophenol over a wide pH range. A surface complexation model has been proposed to describe the effect of pH on adsorption equilibria of chlorophenols on activated carbon. Activated carbon surface functional sites are divided into acidic and basic groups with which molecular and ionized forms of chlorophenols interact, respectively, and form two neutral complexes. The simulations of the model are in excellent agreement with the experimental data.</abstract><cop>Alexandria, VA</cop><pub>Water Environment Federation</pub><doi>10.2175/106143095X133103</doi><tpages>7</tpages></addata></record> |
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| ispartof | Water environment research, 1995-09, Vol.67 (6), p.892-898 |
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| language | eng |
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| subjects | ACTIVATED CARBON ADSORCION ADSORPTION Carbon CARBON ACTIVADO CHARBON ACTIF Chemistry chlorinated phenols CHLOROPHENOLS COMPOSE ORGANOCHLORE COMPOSE PHENOLIQUE COMPUESTO ORGANICO DEL CLORO COMPUESTOS FENOLICOS CONTAMINANTES DISPONIBILIDAD DE NUTRIENTES DISPONIBILITE D'ELEMENT NUTRITIF Exact sciences and technology General and physical chemistry ISOTHERMS NUTRIENT AVAILABILITY ORGANOCHLORINE COMPOUNDS Oxygen PHENOLIC COMPOUNDS Phenols Phosphates POLLUANT POLLUTANTS Research Papers Solid-liquid interface SORCION SORPTION SORPTION ISOTHERMS Surface physical chemistry |
| title | Equilibrium adsorption of chlorophenols on granular activated carbon |
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