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Biosorption characteristics of uranium(VI) from aqueous medium onto Catenella repens, a red alga
The biosorption characteristics of uranium(VI) onto Catenella repens (a red alga), were evaluated as a function of pH, biosorbent size, time, biomass dosage, initial uranium concentration and temperature. Within the pH range studied (1.5–7.5), 4.5 was the optimum pH for the uptake of uranium(VI) by...
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Published in: | Journal of hazardous materials 2008-10, Vol.158 (2), p.628-635 |
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creator | Bhat, Suman Vikas Melo, J.S. Chaugule, B.B. D'Souza, S.F. |
description | The biosorption characteristics of uranium(VI) onto
Catenella repens (a red alga), were evaluated as a function of pH, biosorbent size, time, biomass dosage, initial uranium concentration and temperature. Within the pH range studied (1.5–7.5), 4.5 was the optimum pH for the uptake of uranium(VI) by
C. repens. Reduction in particle size did not increase the biosorption capacity. The metal removal was rapid, with more than 90% of total biosorption taking place in 30
min, and equilibrium was attained in 45
min. The maximum metal loading capacity of the alga was 303
mg/g. Within the temperature range studied (15–55
°C), there was no significant change in biosorption, under optimal conditions. Adsorption process could be well defined by both the Langmuir and Freundlich isotherms with
r
2 of 0.94 and 0.96, respectively. The kinetic data fitted the pseudo-second-order kinetic model with the
r
2 value of 0.99. At a low pH of 2.5, where most of the biomasses show either no or less metal uptake, a good (>15%) metal loading capacity of 25% was achieved. Therefore biosorption characteristics were also evaluated at pH 2.5. |
doi_str_mv | 10.1016/j.jhazmat.2008.02.042 |
format | article |
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Catenella repens (a red alga), were evaluated as a function of pH, biosorbent size, time, biomass dosage, initial uranium concentration and temperature. Within the pH range studied (1.5–7.5), 4.5 was the optimum pH for the uptake of uranium(VI) by
C. repens. Reduction in particle size did not increase the biosorption capacity. The metal removal was rapid, with more than 90% of total biosorption taking place in 30
min, and equilibrium was attained in 45
min. The maximum metal loading capacity of the alga was 303
mg/g. Within the temperature range studied (15–55
°C), there was no significant change in biosorption, under optimal conditions. Adsorption process could be well defined by both the Langmuir and Freundlich isotherms with
r
2 of 0.94 and 0.96, respectively. The kinetic data fitted the pseudo-second-order kinetic model with the
r
2 value of 0.99. At a low pH of 2.5, where most of the biomasses show either no or less metal uptake, a good (>15%) metal loading capacity of 25% was achieved. Therefore biosorption characteristics were also evaluated at pH 2.5.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2008.02.042</identifier><identifier>PMID: 18375055</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Adsorption ; Applied sciences ; Biological and medical sciences ; Biomass ; Biosorption ; Biotechnology ; Catenella ; Catenella repens ; Chemical engineering ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Hydrogen-Ion Concentration ; Isotherm ; Kinetics ; Methods. Procedures. Technologies ; Others ; Particle Size ; Pollution ; Rhodophyta - metabolism ; Temperature ; Uranium ; Uranium - metabolism ; Various methods and equipments ; Water</subject><ispartof>Journal of hazardous materials, 2008-10, Vol.158 (2), p.628-635</ispartof><rights>2008</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c562t-9f99de370dd5ebe0e2388a871f5bc1818b41eb814436300b5536bcbf102876f33</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20683141$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18375055$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bhat, Suman Vikas</creatorcontrib><creatorcontrib>Melo, J.S.</creatorcontrib><creatorcontrib>Chaugule, B.B.</creatorcontrib><creatorcontrib>D'Souza, S.F.</creatorcontrib><title>Biosorption characteristics of uranium(VI) from aqueous medium onto Catenella repens, a red alga</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>The biosorption characteristics of uranium(VI) onto
Catenella repens (a red alga), were evaluated as a function of pH, biosorbent size, time, biomass dosage, initial uranium concentration and temperature. Within the pH range studied (1.5–7.5), 4.5 was the optimum pH for the uptake of uranium(VI) by
C. repens. Reduction in particle size did not increase the biosorption capacity. The metal removal was rapid, with more than 90% of total biosorption taking place in 30
min, and equilibrium was attained in 45
min. The maximum metal loading capacity of the alga was 303
mg/g. Within the temperature range studied (15–55
°C), there was no significant change in biosorption, under optimal conditions. Adsorption process could be well defined by both the Langmuir and Freundlich isotherms with
r
2 of 0.94 and 0.96, respectively. The kinetic data fitted the pseudo-second-order kinetic model with the
r
2 value of 0.99. At a low pH of 2.5, where most of the biomasses show either no or less metal uptake, a good (>15%) metal loading capacity of 25% was achieved. Therefore biosorption characteristics were also evaluated at pH 2.5.</description><subject>Adsorption</subject><subject>Applied sciences</subject><subject>Biological and medical sciences</subject><subject>Biomass</subject><subject>Biosorption</subject><subject>Biotechnology</subject><subject>Catenella</subject><subject>Catenella repens</subject><subject>Chemical engineering</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hydrogen-Ion Concentration</subject><subject>Isotherm</subject><subject>Kinetics</subject><subject>Methods. Procedures. Technologies</subject><subject>Others</subject><subject>Particle Size</subject><subject>Pollution</subject><subject>Rhodophyta - metabolism</subject><subject>Temperature</subject><subject>Uranium</subject><subject>Uranium - metabolism</subject><subject>Various methods and equipments</subject><subject>Water</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkV2L1TAQhoMo7tnVn6DkRlnB1sln0yvRgx8LC96otzFNUzeHtjmbpIL-elNO0ctzlSE8M_MyD0LPCNQEiHxzqA935s9kck0BVA20Bk4foB1RDasYY_Ih2gEDXjHV8gt0mdIBAEgj-GN0QRRrBAixQz_e-5BCPGYfZmzvTDQ2u-hT9jbhMOAlmtkv0_X3m1d4iGHC5n5xYUl4cn35x2HOAe9NdrMbR4OjO7o5vcZr1WMz_jRP0KPBjMk93d4r9O3jh6_7z9Xtl083-3e3lRWS5qod2rZ3rIG-F65z4ChTyqiGDKKzRBHVceI6RThnkgF0QjDZ2W4gQFUjB8au0MvT3GMMJWLKevLJrqHmNa-WraBUEHkWJK1UHFpxHuRKAaNQQHECbQwpRTfoY_STib81Ab3K0ge9ydKrLA1UF1ml7_m2YOnKOf93bXYK8GIDTLJmHIoL69M_joJUjHBSuLcnzpUD__Iu6mS9m21RFJ3Nug_-TJS_10-0qw</recordid><startdate>20081030</startdate><enddate>20081030</enddate><creator>Bhat, Suman Vikas</creator><creator>Melo, J.S.</creator><creator>Chaugule, B.B.</creator><creator>D'Souza, S.F.</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>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>M7N</scope><scope>7X8</scope></search><sort><creationdate>20081030</creationdate><title>Biosorption characteristics of uranium(VI) from aqueous medium onto Catenella repens, a red alga</title><author>Bhat, Suman Vikas ; Melo, J.S. ; Chaugule, B.B. ; D'Souza, S.F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c562t-9f99de370dd5ebe0e2388a871f5bc1818b41eb814436300b5536bcbf102876f33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Adsorption</topic><topic>Applied sciences</topic><topic>Biological and medical sciences</topic><topic>Biomass</topic><topic>Biosorption</topic><topic>Biotechnology</topic><topic>Catenella</topic><topic>Catenella repens</topic><topic>Chemical engineering</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Hydrogen-Ion Concentration</topic><topic>Isotherm</topic><topic>Kinetics</topic><topic>Methods. Procedures. Technologies</topic><topic>Others</topic><topic>Particle Size</topic><topic>Pollution</topic><topic>Rhodophyta - metabolism</topic><topic>Temperature</topic><topic>Uranium</topic><topic>Uranium - metabolism</topic><topic>Various methods and equipments</topic><topic>Water</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bhat, Suman Vikas</creatorcontrib><creatorcontrib>Melo, J.S.</creatorcontrib><creatorcontrib>Chaugule, B.B.</creatorcontrib><creatorcontrib>D'Souza, S.F.</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>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bhat, Suman Vikas</au><au>Melo, J.S.</au><au>Chaugule, B.B.</au><au>D'Souza, S.F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biosorption characteristics of uranium(VI) from aqueous medium onto Catenella repens, a red alga</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2008-10-30</date><risdate>2008</risdate><volume>158</volume><issue>2</issue><spage>628</spage><epage>635</epage><pages>628-635</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>The biosorption characteristics of uranium(VI) onto
Catenella repens (a red alga), were evaluated as a function of pH, biosorbent size, time, biomass dosage, initial uranium concentration and temperature. Within the pH range studied (1.5–7.5), 4.5 was the optimum pH for the uptake of uranium(VI) by
C. repens. Reduction in particle size did not increase the biosorption capacity. The metal removal was rapid, with more than 90% of total biosorption taking place in 30
min, and equilibrium was attained in 45
min. The maximum metal loading capacity of the alga was 303
mg/g. Within the temperature range studied (15–55
°C), there was no significant change in biosorption, under optimal conditions. Adsorption process could be well defined by both the Langmuir and Freundlich isotherms with
r
2 of 0.94 and 0.96, respectively. The kinetic data fitted the pseudo-second-order kinetic model with the
r
2 value of 0.99. At a low pH of 2.5, where most of the biomasses show either no or less metal uptake, a good (>15%) metal loading capacity of 25% was achieved. Therefore biosorption characteristics were also evaluated at pH 2.5.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>18375055</pmid><doi>10.1016/j.jhazmat.2008.02.042</doi><tpages>8</tpages></addata></record> |
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subjects | Adsorption Applied sciences Biological and medical sciences Biomass Biosorption Biotechnology Catenella Catenella repens Chemical engineering Exact sciences and technology Fundamental and applied biological sciences. Psychology Hydrogen-Ion Concentration Isotherm Kinetics Methods. Procedures. Technologies Others Particle Size Pollution Rhodophyta - metabolism Temperature Uranium Uranium - metabolism Various methods and equipments Water |
title | Biosorption characteristics of uranium(VI) from aqueous medium onto Catenella repens, a red alga |
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