Arsenate removal from aqueous solutions using modified red mud
Red mud (RM), a waste tailing from alumina production, was modified with FeCl 3 for the removal of arsenate from water. The RM and modified red mud (MRM) were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD) microanalysis. Adsorption of arsenate on modified red mud...
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| Veröffentlicht in: | Journal of hazardous materials 2008-04, Vol.152 (2), p.486-492 |
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| creator | Zhang, Shuwu Liu, Changjun Luan, Zhaokun Peng, Xianjia Ren, Haijing Wang, Jun |
| description | Red mud (RM), a waste tailing from alumina production, was modified with FeCl
3 for the removal of arsenate from water. The RM and modified red mud (MRM) were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD) microanalysis. Adsorption of arsenate on modified red mud (MRM) was studied as a function of time, pH, and coexisting ions. Equilibrium time for arsenate removal was 24
h. Solution pH significantly affected the adsorption, and the adsorption capacity increased with the decrease in pH. Langmuir and Freundlich isotherms equation were used to fit the adsorption isotherms. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. Adsorption capacity of MRM was found to be 68.5
mg/g, 50.6
mg/g and 23.2
mg/g at pH 6, 7 and 9, respectively. NO
3
− had little effect on the adsorption. Ca
2+ enhanced the adsorption, while HCO
3
− decreased the adsorption. MRM could be regenerated with NaOH, and the regeneration efficiency reached 92.1% when the concentration of NaOH was 0.2
mol/L. |
| doi_str_mv | 10.1016/j.jhazmat.2007.07.031 |
| format | Article |
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3 for the removal of arsenate from water. The RM and modified red mud (MRM) were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD) microanalysis. Adsorption of arsenate on modified red mud (MRM) was studied as a function of time, pH, and coexisting ions. Equilibrium time for arsenate removal was 24
h. Solution pH significantly affected the adsorption, and the adsorption capacity increased with the decrease in pH. Langmuir and Freundlich isotherms equation were used to fit the adsorption isotherms. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. Adsorption capacity of MRM was found to be 68.5
mg/g, 50.6
mg/g and 23.2
mg/g at pH 6, 7 and 9, respectively. NO
3
− had little effect on the adsorption. Ca
2+ enhanced the adsorption, while HCO
3
− decreased the adsorption. MRM could be regenerated with NaOH, and the regeneration efficiency reached 92.1% when the concentration of NaOH was 0.2
mol/L.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2007.07.031</identifier><identifier>PMID: 17826896</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Adsorption ; Aluminum Oxide ; Applied sciences ; Arsenate adsorption ; Arsenates - isolation & purification ; Chemical engineering ; Exact sciences and technology ; Freundlich isotherm ; Industrial Waste ; Langmuir isotherm ; Metallurgy ; Modified red mud ; Other industrial wastes. Sewage sludge ; Pollution ; Red mud ; Wastes ; Water Pollutants, Chemical - isolation & purification</subject><ispartof>Journal of hazardous materials, 2008-04, Vol.152 (2), p.486-492</ispartof><rights>2007 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c574t-dadcf28845bcf7a8cfc67e23dc769dd2f5e6193e994b4688f6e1343284189bf73</citedby><cites>FETCH-LOGICAL-c574t-dadcf28845bcf7a8cfc67e23dc769dd2f5e6193e994b4688f6e1343284189bf73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jhazmat.2007.07.031$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20196461$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17826896$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Shuwu</creatorcontrib><creatorcontrib>Liu, Changjun</creatorcontrib><creatorcontrib>Luan, Zhaokun</creatorcontrib><creatorcontrib>Peng, Xianjia</creatorcontrib><creatorcontrib>Ren, Haijing</creatorcontrib><creatorcontrib>Wang, Jun</creatorcontrib><title>Arsenate removal from aqueous solutions using modified red mud</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>Red mud (RM), a waste tailing from alumina production, was modified with FeCl
3 for the removal of arsenate from water. The RM and modified red mud (MRM) were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD) microanalysis. Adsorption of arsenate on modified red mud (MRM) was studied as a function of time, pH, and coexisting ions. Equilibrium time for arsenate removal was 24
h. Solution pH significantly affected the adsorption, and the adsorption capacity increased with the decrease in pH. Langmuir and Freundlich isotherms equation were used to fit the adsorption isotherms. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. Adsorption capacity of MRM was found to be 68.5
mg/g, 50.6
mg/g and 23.2
mg/g at pH 6, 7 and 9, respectively. NO
3
− had little effect on the adsorption. Ca
2+ enhanced the adsorption, while HCO
3
− decreased the adsorption. MRM could be regenerated with NaOH, and the regeneration efficiency reached 92.1% when the concentration of NaOH was 0.2
mol/L.</description><subject>Adsorption</subject><subject>Aluminum Oxide</subject><subject>Applied sciences</subject><subject>Arsenate adsorption</subject><subject>Arsenates - isolation & purification</subject><subject>Chemical engineering</subject><subject>Exact sciences and technology</subject><subject>Freundlich isotherm</subject><subject>Industrial Waste</subject><subject>Langmuir isotherm</subject><subject>Metallurgy</subject><subject>Modified red mud</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Pollution</subject><subject>Red mud</subject><subject>Wastes</subject><subject>Water Pollutants, Chemical - isolation & purification</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUFr3DAQhUVoSLZpfkKLL83NG0kjS_KlJYS0DQRySc9CK41SLbaVSnag-fW1WdMeF4aZyzczj_cI-cjollEmr_fb_S_71ttxyylV26WAnZAN0wpqAJDvyIYCFTXoVpyT96XsKaVMNeKMnDOludSt3JAvN7ngYEesMvbp1XZVyKmv7O8J01SqkrppjGko1VTi8Fz1yccQ0c-0r_rJfyCnwXYFL9d5QX5-u3u6_VE_PH6_v715qF2jxFh7613gWotm54Ky2gUnFXLwTsnWex4alKwFbFuxE1LrIJGBAK4F0-0uKLggV4e7LznN0spo-lgcdp0dFp0GuASgczsGslZqoIodB4VuhOZ0BpsD6HIqJWMwLzn2Nv8xjJolCrM3axRmicIsBcuDT-uDadej_7-1ej8Dn1fAFme7kO3gYvnHcTprFXI59PXA4Wzwa8Rsios4OPQxoxuNT_GIlL89cqmW</recordid><startdate>20080401</startdate><enddate>20080401</enddate><creator>Zhang, Shuwu</creator><creator>Liu, Changjun</creator><creator>Luan, Zhaokun</creator><creator>Peng, Xianjia</creator><creator>Ren, Haijing</creator><creator>Wang, Jun</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7U7</scope><scope>7QF</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20080401</creationdate><title>Arsenate removal from aqueous solutions using modified red mud</title><author>Zhang, Shuwu ; Liu, Changjun ; Luan, Zhaokun ; Peng, Xianjia ; Ren, Haijing ; Wang, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c574t-dadcf28845bcf7a8cfc67e23dc769dd2f5e6193e994b4688f6e1343284189bf73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Adsorption</topic><topic>Aluminum Oxide</topic><topic>Applied sciences</topic><topic>Arsenate adsorption</topic><topic>Arsenates - isolation & purification</topic><topic>Chemical engineering</topic><topic>Exact sciences and technology</topic><topic>Freundlich isotherm</topic><topic>Industrial Waste</topic><topic>Langmuir isotherm</topic><topic>Metallurgy</topic><topic>Modified red mud</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>Pollution</topic><topic>Red mud</topic><topic>Wastes</topic><topic>Water Pollutants, Chemical - isolation & purification</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Shuwu</creatorcontrib><creatorcontrib>Liu, Changjun</creatorcontrib><creatorcontrib>Luan, Zhaokun</creatorcontrib><creatorcontrib>Peng, Xianjia</creatorcontrib><creatorcontrib>Ren, Haijing</creatorcontrib><creatorcontrib>Wang, Jun</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Aluminium Industry Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Shuwu</au><au>Liu, Changjun</au><au>Luan, Zhaokun</au><au>Peng, Xianjia</au><au>Ren, Haijing</au><au>Wang, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Arsenate removal from aqueous solutions using modified red mud</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2008-04-01</date><risdate>2008</risdate><volume>152</volume><issue>2</issue><spage>486</spage><epage>492</epage><pages>486-492</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>Red mud (RM), a waste tailing from alumina production, was modified with FeCl
3 for the removal of arsenate from water. The RM and modified red mud (MRM) were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD) microanalysis. Adsorption of arsenate on modified red mud (MRM) was studied as a function of time, pH, and coexisting ions. Equilibrium time for arsenate removal was 24
h. Solution pH significantly affected the adsorption, and the adsorption capacity increased with the decrease in pH. Langmuir and Freundlich isotherms equation were used to fit the adsorption isotherms. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. Adsorption capacity of MRM was found to be 68.5
mg/g, 50.6
mg/g and 23.2
mg/g at pH 6, 7 and 9, respectively. NO
3
− had little effect on the adsorption. Ca
2+ enhanced the adsorption, while HCO
3
− decreased the adsorption. MRM could be regenerated with NaOH, and the regeneration efficiency reached 92.1% when the concentration of NaOH was 0.2
mol/L.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>17826896</pmid><doi>10.1016/j.jhazmat.2007.07.031</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorption Aluminum Oxide Applied sciences Arsenate adsorption Arsenates - isolation & purification Chemical engineering Exact sciences and technology Freundlich isotherm Industrial Waste Langmuir isotherm Metallurgy Modified red mud Other industrial wastes. Sewage sludge Pollution Red mud Wastes Water Pollutants, Chemical - isolation & purification |
| title | Arsenate removal from aqueous solutions using modified red mud |
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