Fluoride adsorption on carboxylated aerobic granules containing Ce(III)

► Carboxylated aerobic granules containing Ce(III) (Ce(III)–MAG) were obtained. ► Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc. ► Effects of pH and presence of other ions on sorption were examined. ► Ce(III)–MAG is a promising adsorbent for removal of fluoride from wastewater. Aerobic g...

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Veröffentlicht in:Bioresource technology 2013-01, Vol.127, p.106-111
Hauptverfasser: Wang, Xin-Hua, Song, Rui-Hong, Yang, Hui-Chun, Shi, Yi-Jing, Dang, Guang-Bin, Yang, Sen, Zhao, Yu, Sun, Xue-Fei, Wang, Shu-Guang
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container_end_page 111
container_issue
container_start_page 106
container_title Bioresource technology
container_volume 127
creator Wang, Xin-Hua
Song, Rui-Hong
Yang, Hui-Chun
Shi, Yi-Jing
Dang, Guang-Bin
Yang, Sen
Zhao, Yu
Sun, Xue-Fei
Wang, Shu-Guang
description ► Carboxylated aerobic granules containing Ce(III) (Ce(III)–MAG) were obtained. ► Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc. ► Effects of pH and presence of other ions on sorption were examined. ► Ce(III)–MAG is a promising adsorbent for removal of fluoride from wastewater. Aerobic granules (AG) were carboxylated and Ce(III) was incorporated to obtain modified granuels (Ce(III)–MAG) for removal of fluoride from aqueous solutions. The Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc, and the introduction of carboxyl groups and Ce(III) was confirmed. The adsorption capacity of Ce(III)–MAG for fluoride was 45.80mg/g at neutral pH, an increase of 359% compared to the capacity of pristine AG. Adsorption was highest at pH range of 3.0–5.0. A positive effect on fluoride removal in the order of K+≈Mg2+>Ca2+>Na+ and a negative effect in the order of NO3−>Cl−>SO42−>HCO3−>PO43− was observed. Fluoride adsorption followed the Redlich–Peterson model and the pseudo-first order model with correlation factors of 0.999 and 0.950, respectively. Ce(III)–MAG held up to 790 bed volumes and the effluent fluoride concentration remained below 1.0mg/L (influent fluoride 10mg/L).
doi_str_mv 10.1016/j.biortech.2012.09.127
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Aerobic granules (AG) were carboxylated and Ce(III) was incorporated to obtain modified granuels (Ce(III)–MAG) for removal of fluoride from aqueous solutions. The Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc, and the introduction of carboxyl groups and Ce(III) was confirmed. The adsorption capacity of Ce(III)–MAG for fluoride was 45.80mg/g at neutral pH, an increase of 359% compared to the capacity of pristine AG. Adsorption was highest at pH range of 3.0–5.0. A positive effect on fluoride removal in the order of K+≈Mg2+&gt;Ca2+&gt;Na+ and a negative effect in the order of NO3−&gt;Cl−&gt;SO42−&gt;HCO3−&gt;PO43− was observed. Fluoride adsorption followed the Redlich–Peterson model and the pseudo-first order model with correlation factors of 0.999 and 0.950, respectively. Ce(III)–MAG held up to 790 bed volumes and the effluent fluoride concentration remained below 1.0mg/L (influent fluoride 10mg/L).</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2012.09.127</identifier><identifier>PMID: 23131629</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adsorption ; Bacteria, Aerobic - chemistry ; Biological and medical sciences ; Bioreactors ; Biosorption ; Biotechnology ; calcium ; Carboxylated ; Carboxylated aerobic granules containing Ce(III) ; carboxylation ; Cerium - analysis ; Effluents ; Fixed-bed bioreactors ; Fluoride ; Fluorides ; Fluorides - analysis ; Fluorides - chemistry ; Fundamental and applied biological sciences. Psychology ; Granular materials ; Granules ; Hydrogen-Ion Concentration ; Influents ; Methods. Procedures. 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Aerobic granules (AG) were carboxylated and Ce(III) was incorporated to obtain modified granuels (Ce(III)–MAG) for removal of fluoride from aqueous solutions. The Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc, and the introduction of carboxyl groups and Ce(III) was confirmed. The adsorption capacity of Ce(III)–MAG for fluoride was 45.80mg/g at neutral pH, an increase of 359% compared to the capacity of pristine AG. Adsorption was highest at pH range of 3.0–5.0. A positive effect on fluoride removal in the order of K+≈Mg2+&gt;Ca2+&gt;Na+ and a negative effect in the order of NO3−&gt;Cl−&gt;SO42−&gt;HCO3−&gt;PO43− was observed. Fluoride adsorption followed the Redlich–Peterson model and the pseudo-first order model with correlation factors of 0.999 and 0.950, respectively. Ce(III)–MAG held up to 790 bed volumes and the effluent fluoride concentration remained below 1.0mg/L (influent fluoride 10mg/L).</description><subject>Adsorption</subject><subject>Bacteria, Aerobic - chemistry</subject><subject>Biological and medical sciences</subject><subject>Bioreactors</subject><subject>Biosorption</subject><subject>Biotechnology</subject><subject>calcium</subject><subject>Carboxylated</subject><subject>Carboxylated aerobic granules containing Ce(III)</subject><subject>carboxylation</subject><subject>Cerium - analysis</subject><subject>Effluents</subject><subject>Fixed-bed bioreactors</subject><subject>Fluoride</subject><subject>Fluorides</subject><subject>Fluorides - analysis</subject><subject>Fluorides - chemistry</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Granular materials</subject><subject>Granules</subject><subject>Hydrogen-Ion Concentration</subject><subject>Influents</subject><subject>Methods. Procedures. Technologies</subject><subject>Microscopy, Electron, Scanning</subject><subject>sorption isotherms</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>technology</subject><subject>Various methods and equipments</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Purification - methods</subject><subject>X-Ray Diffraction</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkUFv2yAYhtHUac26_YXKl0ndwd4H2GBuraK1jVRpl-2MMHzuiByTgl01_35ESbtjipC4PO_3veIh5JJCRYGKH-uq8yFOaP9WDCirQFWUyQ9kQVvJS6akOCMLUALKtmH1Ofmc0hoAOJXsEzlnnHIqmFqQu9thDtE7LIxLIW4nH8YiX2tiF152g5nQFQZj6LwtHqMZ5wFTYcM4GT_68bFY4tVqtfr-hXzszZDw6_G9IH9uf_5e3pcPv-5Wy5uH0tZKTmXb0rphjsq25rzDnjPeMZCuQQsdcuOoElaKhlrVK-NESwE5U0aClFYJzi_I1WHuNoanGdOkNz5ZHAYzYpiT5rThQta8qU-iVNSMyVqBOI02kAsw1rwDZflw4LzNqDigNoaUIvZ6G_3GxJ2moPcW9Vq_WtR7ixpUzsscvDzumLsNurfYq7YMfDsCJlkz9NmL9ek_JyH_c7sve33gMCt59hh1sh5Hi85HtJN2wZ_q8g-cZrtF</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Wang, Xin-Hua</creator><creator>Song, Rui-Hong</creator><creator>Yang, Hui-Chun</creator><creator>Shi, Yi-Jing</creator><creator>Dang, Guang-Bin</creator><creator>Yang, Sen</creator><creator>Zhao, Yu</creator><creator>Sun, Xue-Fei</creator><creator>Wang, Shu-Guang</creator><general>Elsevier Ltd</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>7X8</scope><scope>7QH</scope><scope>7QO</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope><scope>7SU</scope><scope>7TB</scope><scope>KR7</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20130101</creationdate><title>Fluoride adsorption on carboxylated aerobic granules containing Ce(III)</title><author>Wang, Xin-Hua ; Song, Rui-Hong ; Yang, Hui-Chun ; Shi, Yi-Jing ; Dang, Guang-Bin ; Yang, Sen ; Zhao, Yu ; Sun, Xue-Fei ; Wang, Shu-Guang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c497t-881452d178433bef323b207d5ec0be3ad196c7651c9f9ad6810e329a7077c9633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adsorption</topic><topic>Bacteria, Aerobic - chemistry</topic><topic>Biological and medical sciences</topic><topic>Bioreactors</topic><topic>Biosorption</topic><topic>Biotechnology</topic><topic>calcium</topic><topic>Carboxylated</topic><topic>Carboxylated aerobic granules containing Ce(III)</topic><topic>carboxylation</topic><topic>Cerium - analysis</topic><topic>Effluents</topic><topic>Fixed-bed bioreactors</topic><topic>Fluoride</topic><topic>Fluorides</topic><topic>Fluorides - analysis</topic><topic>Fluorides - chemistry</topic><topic>Fundamental and applied biological sciences. 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Aerobic granules (AG) were carboxylated and Ce(III) was incorporated to obtain modified granuels (Ce(III)–MAG) for removal of fluoride from aqueous solutions. The Ce(III)–MAG was characterized by SEM, FTIR, XRD and pHpzc, and the introduction of carboxyl groups and Ce(III) was confirmed. The adsorption capacity of Ce(III)–MAG for fluoride was 45.80mg/g at neutral pH, an increase of 359% compared to the capacity of pristine AG. Adsorption was highest at pH range of 3.0–5.0. A positive effect on fluoride removal in the order of K+≈Mg2+&gt;Ca2+&gt;Na+ and a negative effect in the order of NO3−&gt;Cl−&gt;SO42−&gt;HCO3−&gt;PO43− was observed. Fluoride adsorption followed the Redlich–Peterson model and the pseudo-first order model with correlation factors of 0.999 and 0.950, respectively. Ce(III)–MAG held up to 790 bed volumes and the effluent fluoride concentration remained below 1.0mg/L (influent fluoride 10mg/L).</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23131629</pmid><doi>10.1016/j.biortech.2012.09.127</doi><tpages>6</tpages></addata></record>
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subjects Adsorption
Bacteria, Aerobic - chemistry
Biological and medical sciences
Bioreactors
Biosorption
Biotechnology
calcium
Carboxylated
Carboxylated aerobic granules containing Ce(III)
carboxylation
Cerium - analysis
Effluents
Fixed-bed bioreactors
Fluoride
Fluorides
Fluorides - analysis
Fluorides - chemistry
Fundamental and applied biological sciences. Psychology
Granular materials
Granules
Hydrogen-Ion Concentration
Influents
Methods. Procedures. Technologies
Microscopy, Electron, Scanning
sorption isotherms
Spectroscopy, Fourier Transform Infrared
technology
Various methods and equipments
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water Purification - methods
X-Ray Diffraction
title Fluoride adsorption on carboxylated aerobic granules containing Ce(III)
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