General purpose adsorption isotherms
The fitting of adsorption isotherm equations to experimental data is often an important aspect of data analysis. If the Langmuir and Freundlich isotherms are used, then consideration must be given to the proper weighting of the observations. Preferably nonlinear regression (nonlinear least squares)...
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| Veröffentlicht in: | Environ. Sci. Technol.; (United States) 1986-09, Vol.20 (9), p.895-904 |
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| creator | Kinniburgh, David G |
| description | The fitting of adsorption isotherm equations to experimental data is often an important aspect of data analysis. If the Langmuir and Freundlich isotherms are used, then consideration must be given to the proper weighting of the observations. Preferably nonlinear regression (nonlinear least squares) should be used since this enables these isotherms to be fitted directly and also enables other isotherms to be tested with little extra effort. Isotherms described her which are likely to show a wide range of applicability include the Toth, modified Dubinin-Radushkevich, and multisite Langmuir isotherms. These can also describe competitive adsorption (binary exchange) reactions and are well suited for heterogeneous exchangers such as soils and sediments. Specific examples discussed are the adsorption of P and K by soils, Na-Cu exchange by montmorillonite, and Zn adsorption by ferrihydrite. |
| doi_str_mv | 10.1021/es00151a008 |
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If the Langmuir and Freundlich isotherms are used, then consideration must be given to the proper weighting of the observations. Preferably nonlinear regression (nonlinear least squares) should be used since this enables these isotherms to be fitted directly and also enables other isotherms to be tested with little extra effort. Isotherms described her which are likely to show a wide range of applicability include the Toth, modified Dubinin-Radushkevich, and multisite Langmuir isotherms. These can also describe competitive adsorption (binary exchange) reactions and are well suited for heterogeneous exchangers such as soils and sediments. Specific examples discussed are the adsorption of P and K by soils, Na-Cu exchange by montmorillonite, and Zn adsorption by ferrihydrite.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es00151a008</identifier><identifier>PMID: 22263822</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>ADSORCION ; ADSORPTION ; ADSORPTION ISOTHERMS ; ALKALI METAL COMPOUNDS ; Applied sciences ; Biological and physicochemical properties of pollutants. Interaction in the soil ; CATIONS ; CHARGED PARTICLES ; CHEMICAL REACTIONS ; CHEMISORPTION ; CINC ; CLAYS ; COBRE ; COPPER ; COPPER COMPOUNDS ; CUIVRE ; DATA ; DATA ANALYSIS ; ELEMENTS ; ENVIRONMENTAL SCIENCES ; Exact sciences and technology ; EXPERIMENTAL DATA ; FERRIHYDRITE ; FOSFORO ; INFORMATION ; INORGANIC ION EXCHANGERS ; ION EXCHANGE ; ION EXCHANGE MATERIALS ; IONS ; IRON COMPOUNDS ; ISOTHERMS ; MATERIALS ; MINERALES ; MINERALS ; MINERAUX ; MODELE ; MODELOS ; MONTMORILLONITE ; NONMETALS ; NUMERICAL DATA ; PHOSPHORE ; PHOSPHORUS ; Pollution ; POTASIO ; POTASSIUM ; POTASSIUM COMPOUNDS ; SEDIMENTS ; SEPARATION PROCESSES ; SODIO ; SODIUM ; SODIUM COMPOUNDS ; Soil and sediments pollution ; SOILS ; SOLS ; SORPTION ; SUELOS ; TRANSITION ELEMENT COMPOUNDS 510100 -- Environment, Terrestrial-- Basic Studies-- (-1989) ; USES ; ZINC ; ZINC COMPOUNDS</subject><ispartof>Environ. Sci. Technol.; (United States), 1986-09, Vol.20 (9), p.895-904</ispartof><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a462t-50f3c79b727a15baed14675b995a77397096058812ad89bcdbd783089abd61c53</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es00151a008$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es00151a008$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>315,782,786,887,2767,27083,27931,27932,56745,56795</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7938722$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22263822$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6657299$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Kinniburgh, David G</creatorcontrib><creatorcontrib>British Geological Survey, Wallingford, England</creatorcontrib><title>General purpose adsorption isotherms</title><title>Environ. Sci. Technol.; (United States)</title><addtitle>Environ. Sci. Technol</addtitle><description>The fitting of adsorption isotherm equations to experimental data is often an important aspect of data analysis. If the Langmuir and Freundlich isotherms are used, then consideration must be given to the proper weighting of the observations. Preferably nonlinear regression (nonlinear least squares) should be used since this enables these isotherms to be fitted directly and also enables other isotherms to be tested with little extra effort. Isotherms described her which are likely to show a wide range of applicability include the Toth, modified Dubinin-Radushkevich, and multisite Langmuir isotherms. These can also describe competitive adsorption (binary exchange) reactions and are well suited for heterogeneous exchangers such as soils and sediments. Specific examples discussed are the adsorption of P and K by soils, Na-Cu exchange by montmorillonite, and Zn adsorption by ferrihydrite.</description><subject>ADSORCION</subject><subject>ADSORPTION</subject><subject>ADSORPTION ISOTHERMS</subject><subject>ALKALI METAL COMPOUNDS</subject><subject>Applied sciences</subject><subject>Biological and physicochemical properties of pollutants. Interaction in the soil</subject><subject>CATIONS</subject><subject>CHARGED PARTICLES</subject><subject>CHEMICAL REACTIONS</subject><subject>CHEMISORPTION</subject><subject>CINC</subject><subject>CLAYS</subject><subject>COBRE</subject><subject>COPPER</subject><subject>COPPER COMPOUNDS</subject><subject>CUIVRE</subject><subject>DATA</subject><subject>DATA ANALYSIS</subject><subject>ELEMENTS</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>Exact sciences and technology</subject><subject>EXPERIMENTAL DATA</subject><subject>FERRIHYDRITE</subject><subject>FOSFORO</subject><subject>INFORMATION</subject><subject>INORGANIC ION EXCHANGERS</subject><subject>ION EXCHANGE</subject><subject>ION EXCHANGE MATERIALS</subject><subject>IONS</subject><subject>IRON COMPOUNDS</subject><subject>ISOTHERMS</subject><subject>MATERIALS</subject><subject>MINERALES</subject><subject>MINERALS</subject><subject>MINERAUX</subject><subject>MODELE</subject><subject>MODELOS</subject><subject>MONTMORILLONITE</subject><subject>NONMETALS</subject><subject>NUMERICAL DATA</subject><subject>PHOSPHORE</subject><subject>PHOSPHORUS</subject><subject>Pollution</subject><subject>POTASIO</subject><subject>POTASSIUM</subject><subject>POTASSIUM COMPOUNDS</subject><subject>SEDIMENTS</subject><subject>SEPARATION PROCESSES</subject><subject>SODIO</subject><subject>SODIUM</subject><subject>SODIUM COMPOUNDS</subject><subject>Soil and sediments pollution</subject><subject>SOILS</subject><subject>SOLS</subject><subject>SORPTION</subject><subject>SUELOS</subject><subject>TRANSITION ELEMENT COMPOUNDS 510100 -- Environment, Terrestrial-- Basic Studies-- (-1989)</subject><subject>USES</subject><subject>ZINC</subject><subject>ZINC COMPOUNDS</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNp90U2L1TAUBuAginMdXblzIRcZdCHVfDQ5yVKG-RAuqMyMugunaep07G1qTgv67-3Y69WFuDqQ8_ByeMPYY8FfCS7F60icCy2Qc3uHrYSWvNBWi7tsNb-rwinz-YA9ILrhnEvF7X12IKU0ykq5YkdnsY8Zu_Uw5SFRXGNNKQ9jm_p1S2m8jnlLD9m9BjuKj3bzkF2dnlwenxebd2dvj99sCiyNHAvNGxXAVSABha4w1qI0oCvnNAIoB9wZrq0VEmvrqlBXNdj5IIdVbUTQ6pA9W3ITja2n0I4xXIfU9zGM3hgN0rkZvVjQkNO3KdLoty2F2HXYxzSRdwI0GChv457_V4qyBF2WcoYvFxhyIsqx8UNut5h_eMH9bcf-r45n_XQXO1XbWO_t71JncLQDSAG7JmMfWto7cMrCL1YsrKUxft-vMX_1BhRof_n-wn8w5582yoD_OPsni28wefyS58irCwu8tE79aQUD-Zs05X7-qH-e_xM4saRG</recordid><startdate>19860901</startdate><enddate>19860901</enddate><creator>Kinniburgh, David G</creator><general>American Chemical Society</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TV</scope><scope>C1K</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>19860901</creationdate><title>General purpose adsorption isotherms</title><author>Kinniburgh, David G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a462t-50f3c79b727a15baed14675b995a77397096058812ad89bcdbd783089abd61c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>ADSORCION</topic><topic>ADSORPTION</topic><topic>ADSORPTION ISOTHERMS</topic><topic>ALKALI METAL COMPOUNDS</topic><topic>Applied sciences</topic><topic>Biological and physicochemical properties of pollutants. Interaction in the soil</topic><topic>CATIONS</topic><topic>CHARGED PARTICLES</topic><topic>CHEMICAL REACTIONS</topic><topic>CHEMISORPTION</topic><topic>CINC</topic><topic>CLAYS</topic><topic>COBRE</topic><topic>COPPER</topic><topic>COPPER COMPOUNDS</topic><topic>CUIVRE</topic><topic>DATA</topic><topic>DATA ANALYSIS</topic><topic>ELEMENTS</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>Exact sciences and technology</topic><topic>EXPERIMENTAL DATA</topic><topic>FERRIHYDRITE</topic><topic>FOSFORO</topic><topic>INFORMATION</topic><topic>INORGANIC ION EXCHANGERS</topic><topic>ION EXCHANGE</topic><topic>ION EXCHANGE MATERIALS</topic><topic>IONS</topic><topic>IRON COMPOUNDS</topic><topic>ISOTHERMS</topic><topic>MATERIALS</topic><topic>MINERALES</topic><topic>MINERALS</topic><topic>MINERAUX</topic><topic>MODELE</topic><topic>MODELOS</topic><topic>MONTMORILLONITE</topic><topic>NONMETALS</topic><topic>NUMERICAL DATA</topic><topic>PHOSPHORE</topic><topic>PHOSPHORUS</topic><topic>Pollution</topic><topic>POTASIO</topic><topic>POTASSIUM</topic><topic>POTASSIUM COMPOUNDS</topic><topic>SEDIMENTS</topic><topic>SEPARATION PROCESSES</topic><topic>SODIO</topic><topic>SODIUM</topic><topic>SODIUM COMPOUNDS</topic><topic>Soil and sediments pollution</topic><topic>SOILS</topic><topic>SOLS</topic><topic>SORPTION</topic><topic>SUELOS</topic><topic>TRANSITION ELEMENT COMPOUNDS 510100 -- Environment, Terrestrial-- Basic Studies-- (-1989)</topic><topic>USES</topic><topic>ZINC</topic><topic>ZINC COMPOUNDS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kinniburgh, David G</creatorcontrib><creatorcontrib>British Geological Survey, Wallingford, England</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Pollution Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Environ. Sci. Technol.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kinniburgh, David G</au><aucorp>British Geological Survey, Wallingford, England</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>General purpose adsorption isotherms</atitle><jtitle>Environ. Sci. Technol.; (United States)</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>1986-09-01</date><risdate>1986</risdate><volume>20</volume><issue>9</issue><spage>895</spage><epage>904</epage><pages>895-904</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>The fitting of adsorption isotherm equations to experimental data is often an important aspect of data analysis. If the Langmuir and Freundlich isotherms are used, then consideration must be given to the proper weighting of the observations. Preferably nonlinear regression (nonlinear least squares) should be used since this enables these isotherms to be fitted directly and also enables other isotherms to be tested with little extra effort. Isotherms described her which are likely to show a wide range of applicability include the Toth, modified Dubinin-Radushkevich, and multisite Langmuir isotherms. These can also describe competitive adsorption (binary exchange) reactions and are well suited for heterogeneous exchangers such as soils and sediments. Specific examples discussed are the adsorption of P and K by soils, Na-Cu exchange by montmorillonite, and Zn adsorption by ferrihydrite.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>22263822</pmid><doi>10.1021/es00151a008</doi><tpages>10</tpages></addata></record> |
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| ispartof | Environ. Sci. Technol.; (United States), 1986-09, Vol.20 (9), p.895-904 |
| issn | 0013-936X 1520-5851 |
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| source | ACS Publications |
| subjects | ADSORCION ADSORPTION ADSORPTION ISOTHERMS ALKALI METAL COMPOUNDS Applied sciences Biological and physicochemical properties of pollutants. Interaction in the soil CATIONS CHARGED PARTICLES CHEMICAL REACTIONS CHEMISORPTION CINC CLAYS COBRE COPPER COPPER COMPOUNDS CUIVRE DATA DATA ANALYSIS ELEMENTS ENVIRONMENTAL SCIENCES Exact sciences and technology EXPERIMENTAL DATA FERRIHYDRITE FOSFORO INFORMATION INORGANIC ION EXCHANGERS ION EXCHANGE ION EXCHANGE MATERIALS IONS IRON COMPOUNDS ISOTHERMS MATERIALS MINERALES MINERALS MINERAUX MODELE MODELOS MONTMORILLONITE NONMETALS NUMERICAL DATA PHOSPHORE PHOSPHORUS Pollution POTASIO POTASSIUM POTASSIUM COMPOUNDS SEDIMENTS SEPARATION PROCESSES SODIO SODIUM SODIUM COMPOUNDS Soil and sediments pollution SOILS SOLS SORPTION SUELOS TRANSITION ELEMENT COMPOUNDS 510100 -- Environment, Terrestrial-- Basic Studies-- (-1989) USES ZINC ZINC COMPOUNDS |
| title | General purpose adsorption isotherms |
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