Removal of Tartrazine from Aqueous Solution by Adsorption on Activated Red Mud
In this study, activated red mud was used to develop an effective adsorbent in order to remove a toxic azo dye (tartrazine E102) from aqueous solutions. To increase the adsorption capacity, the red mud was activated by acid-heat treatment using 20 wt.% HCl (RM-HCl). To establish the optimum operatin...
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| Veröffentlicht in: | Water, air, and soil pollution air, and soil pollution, 2017-08, Vol.228 (8), p.1, Article 298 |
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| creator | Bacioiu, Ionela-Gabriela Stoica, Ligia Constantin, Carolina Stanescu, Ana-Maria |
| description | In this study, activated red mud was used to develop an effective adsorbent in order to remove a toxic azo dye (tartrazine E102) from aqueous solutions. To increase the adsorption capacity, the red mud was activated by acid-heat treatment using 20 wt.% HCl (RM-HCl). To establish the optimum operating parameters, the influence of pH, adsorbent dose, contact time, initial dye concentration, and stirring rate was investigated. The adsorption equilibrium was studied using Langmuir, Freundlich, Dubinin-Radushkevich, Temkin isotherm models, and the characteristic parameters for each adsorption isotherm were determined. The kinetics of the adsorption process was analyzed by means of pseudo-first-order and pseudo-second-order models. The maximum removal efficiency obtained under optimum conditions was 84.72%. These results were in accordance with the isotherm and kinetic data. The results suggested that tartrazine adsorption process follows the pseudo-second-order kinetic model and also that fits Langmuir isotherm model. The maximum monolayer adsorption capacity was 136.98 mg/g. |
| doi_str_mv | 10.1007/s11270-017-3469-3 |
| format | Article |
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To increase the adsorption capacity, the red mud was activated by acid-heat treatment using 20 wt.% HCl (RM-HCl). To establish the optimum operating parameters, the influence of pH, adsorbent dose, contact time, initial dye concentration, and stirring rate was investigated. The adsorption equilibrium was studied using Langmuir, Freundlich, Dubinin-Radushkevich, Temkin isotherm models, and the characteristic parameters for each adsorption isotherm were determined. The kinetics of the adsorption process was analyzed by means of pseudo-first-order and pseudo-second-order models. The maximum removal efficiency obtained under optimum conditions was 84.72%. These results were in accordance with the isotherm and kinetic data. The results suggested that tartrazine adsorption process follows the pseudo-second-order kinetic model and also that fits Langmuir isotherm model. The maximum monolayer adsorption capacity was 136.98 mg/g.</description><identifier>ISSN: 0049-6979</identifier><identifier>EISSN: 1573-2932</identifier><identifier>DOI: 10.1007/s11270-017-3469-3</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Adsorbents ; Adsorption ; Aqueous solutions ; Atmospheric Protection/Air Quality Control/Air Pollution ; Azo compounds ; Azo dyes ; Capacity ; Climate Change/Climate Change Impacts ; Dosage ; Dyes ; Earth and Environmental Science ; Environment ; Environmental monitoring ; Heat treatment ; Hydrogeology ; Isotherms ; Kinetics ; Mathematical models ; Mud ; Parameters ; pH effects ; Red mud ; Removal ; Soil Science & Conservation ; Solutions ; Tartrazine ; Water Quality/Water Pollution</subject><ispartof>Water, air, and soil pollution, 2017-08, Vol.228 (8), p.1, Article 298</ispartof><rights>Springer International Publishing AG 2017</rights><rights>COPYRIGHT 2017 Springer</rights><rights>Water, Air, & Soil Pollution is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c355t-22b246f1e5490900f4fc3f1c6665694dcc4c1220b9f28a7e916d8a3c5190f9b13</citedby><cites>FETCH-LOGICAL-c355t-22b246f1e5490900f4fc3f1c6665694dcc4c1220b9f28a7e916d8a3c5190f9b13</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/s11270-017-3469-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11270-017-3469-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Bacioiu, Ionela-Gabriela</creatorcontrib><creatorcontrib>Stoica, Ligia</creatorcontrib><creatorcontrib>Constantin, Carolina</creatorcontrib><creatorcontrib>Stanescu, Ana-Maria</creatorcontrib><title>Removal of Tartrazine from Aqueous Solution by Adsorption on Activated Red Mud</title><title>Water, air, and soil pollution</title><addtitle>Water Air Soil Pollut</addtitle><description>In this study, activated red mud was used to develop an effective adsorbent in order to remove a toxic azo dye (tartrazine E102) from aqueous solutions. To increase the adsorption capacity, the red mud was activated by acid-heat treatment using 20 wt.% HCl (RM-HCl). To establish the optimum operating parameters, the influence of pH, adsorbent dose, contact time, initial dye concentration, and stirring rate was investigated. The adsorption equilibrium was studied using Langmuir, Freundlich, Dubinin-Radushkevich, Temkin isotherm models, and the characteristic parameters for each adsorption isotherm were determined. The kinetics of the adsorption process was analyzed by means of pseudo-first-order and pseudo-second-order models. The maximum removal efficiency obtained under optimum conditions was 84.72%. These results were in accordance with the isotherm and kinetic data. The results suggested that tartrazine adsorption process follows the pseudo-second-order kinetic model and also that fits Langmuir isotherm model. The maximum monolayer adsorption capacity was 136.98 mg/g.</description><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Aqueous solutions</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Azo compounds</subject><subject>Azo dyes</subject><subject>Capacity</subject><subject>Climate Change/Climate Change Impacts</subject><subject>Dosage</subject><subject>Dyes</subject><subject>Earth and Environmental Science</subject><subject>Environment</subject><subject>Environmental monitoring</subject><subject>Heat treatment</subject><subject>Hydrogeology</subject><subject>Isotherms</subject><subject>Kinetics</subject><subject>Mathematical models</subject><subject>Mud</subject><subject>Parameters</subject><subject>pH effects</subject><subject>Red mud</subject><subject>Removal</subject><subject>Soil Science & Conservation</subject><subject>Solutions</subject><subject>Tartrazine</subject><subject>Water Quality/Water 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pollution</jtitle><stitle>Water Air Soil Pollut</stitle><date>2017-08-01</date><risdate>2017</risdate><volume>228</volume><issue>8</issue><spage>1</spage><pages>1-</pages><artnum>298</artnum><issn>0049-6979</issn><eissn>1573-2932</eissn><abstract>In this study, activated red mud was used to develop an effective adsorbent in order to remove a toxic azo dye (tartrazine E102) from aqueous solutions. To increase the adsorption capacity, the red mud was activated by acid-heat treatment using 20 wt.% HCl (RM-HCl). To establish the optimum operating parameters, the influence of pH, adsorbent dose, contact time, initial dye concentration, and stirring rate was investigated. The adsorption equilibrium was studied using Langmuir, Freundlich, Dubinin-Radushkevich, Temkin isotherm models, and the characteristic parameters for each adsorption isotherm were determined. The kinetics of the adsorption process was analyzed by means of pseudo-first-order and pseudo-second-order models. The maximum removal efficiency obtained under optimum conditions was 84.72%. These results were in accordance with the isotherm and kinetic data. The results suggested that tartrazine adsorption process follows the pseudo-second-order kinetic model and also that fits Langmuir isotherm model. The maximum monolayer adsorption capacity was 136.98 mg/g.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s11270-017-3469-3</doi></addata></record> |
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| ispartof | Water, air, and soil pollution, 2017-08, Vol.228 (8), p.1, Article 298 |
| issn | 0049-6979 1573-2932 |
| language | eng |
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| subjects | Adsorbents Adsorption Aqueous solutions Atmospheric Protection/Air Quality Control/Air Pollution Azo compounds Azo dyes Capacity Climate Change/Climate Change Impacts Dosage Dyes Earth and Environmental Science Environment Environmental monitoring Heat treatment Hydrogeology Isotherms Kinetics Mathematical models Mud Parameters pH effects Red mud Removal Soil Science & Conservation Solutions Tartrazine Water Quality/Water Pollution |
| title | Removal of Tartrazine from Aqueous Solution by Adsorption on Activated Red Mud |
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