Mass transfer studies on the reduction of Cr(VI) using calcium alginate immobilized Bacillus sp. in packed bed reactor
This study presents the external mass transfer effects on the reduction of hexavalent chromium (Cr(VI)) using calcium alginate immobilized Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate const...
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| Veröffentlicht in: | Bioresource technology 2010-02, Vol.101 (3), p.853-858 |
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| container_title | Bioresource technology |
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| creator | Kathiravan, Mathur Nadarajan Karthiga Rani, Ravikumar Karthick, Ramalingam Muthukumar, Karuppan |
| description | This study presents the external mass transfer effects on the reduction of hexavalent chromium (Cr(VI)) using calcium alginate immobilized
Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate constants for various flow rates were analyzed using external film diffusion models and compared with experimental values. The external mass transfer coefficients for the bioconversion of Cr(VI) were also investigated. The external mass transfer effect was correlated with a model of the type
J
D
=
K Re
−(1−
n
). The model was tested with various
K values and the mass transfer correlation
J
D
=
5.7 Re
−0.70 was found to predict the experimental data accurately. The proposed model would be useful for the design of industrial reactor and scale up. |
| doi_str_mv | 10.1016/j.biortech.2009.08.088 |
| format | Article |
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Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate constants for various flow rates were analyzed using external film diffusion models and compared with experimental values. The external mass transfer coefficients for the bioconversion of Cr(VI) were also investigated. The external mass transfer effect was correlated with a model of the type
J
D
=
K Re
−(1−
n
). The model was tested with various
K values and the mass transfer correlation
J
D
=
5.7 Re
−0.70 was found to predict the experimental data accurately. The proposed model would be useful for the design of industrial reactor and scale up.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2009.08.088</identifier><identifier>PMID: 19800224</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adsorption ; Alginates - chemistry ; Bacillus ; Bacillus - metabolism ; Biodegradation, Environmental ; Biological and medical sciences ; Bioreactors ; Biotechnology - methods ; Calcium alginate ; Chromium - chemistry ; Correlation ; Cr(VI) reduction ; External mass transfer ; Flow rate ; Fundamental and applied biological sciences. Psychology ; Glucuronic Acid - chemistry ; Hexuronic Acids - chemistry ; Immobilization ; Industrial Waste ; Mass transfer ; Mathematical models ; Re-circulated packed bed batch reactor ; Reactors ; Reduction ; Temperature ; Time Factors ; Waste Disposal, Fluid ; Water Movements ; Water Pollutants, Chemical ; Water Purification</subject><ispartof>Bioresource technology, 2010-02, Vol.101 (3), p.853-858</ispartof><rights>2009 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c493t-3e52975d3137cd5e66b0e7e1ffd3baeb1fc36a40739ceed2c585f8ea9bfff2c43</citedby><cites>FETCH-LOGICAL-c493t-3e52975d3137cd5e66b0e7e1ffd3baeb1fc36a40739ceed2c585f8ea9bfff2c43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960852409011523$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22119694$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19800224$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kathiravan, Mathur Nadarajan</creatorcontrib><creatorcontrib>Karthiga Rani, Ravikumar</creatorcontrib><creatorcontrib>Karthick, Ramalingam</creatorcontrib><creatorcontrib>Muthukumar, Karuppan</creatorcontrib><title>Mass transfer studies on the reduction of Cr(VI) using calcium alginate immobilized Bacillus sp. in packed bed reactor</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>This study presents the external mass transfer effects on the reduction of hexavalent chromium (Cr(VI)) using calcium alginate immobilized
Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate constants for various flow rates were analyzed using external film diffusion models and compared with experimental values. The external mass transfer coefficients for the bioconversion of Cr(VI) were also investigated. The external mass transfer effect was correlated with a model of the type
J
D
=
K Re
−(1−
n
). The model was tested with various
K values and the mass transfer correlation
J
D
=
5.7 Re
−0.70 was found to predict the experimental data accurately. The proposed model would be useful for the design of industrial reactor and scale up.</description><subject>Adsorption</subject><subject>Alginates - chemistry</subject><subject>Bacillus</subject><subject>Bacillus - metabolism</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Bioreactors</subject><subject>Biotechnology - methods</subject><subject>Calcium alginate</subject><subject>Chromium - chemistry</subject><subject>Correlation</subject><subject>Cr(VI) reduction</subject><subject>External mass transfer</subject><subject>Flow rate</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glucuronic Acid - chemistry</subject><subject>Hexuronic Acids - chemistry</subject><subject>Immobilization</subject><subject>Industrial Waste</subject><subject>Mass transfer</subject><subject>Mathematical models</subject><subject>Re-circulated packed bed batch reactor</subject><subject>Reactors</subject><subject>Reduction</subject><subject>Temperature</subject><subject>Time Factors</subject><subject>Waste Disposal, Fluid</subject><subject>Water Movements</subject><subject>Water Pollutants, Chemical</subject><subject>Water Purification</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUtvFSEUgInR2NvqX2jYqHUxI4-ZAXbqjY8mNW7ULWHg0HKdxxWYJvbXy-Reddcmh5xAvvMgH0LnlNSU0O7Nru7DHDPYm5oRomoiS8hHaEOl4BVTonuMNkR1pJIta07QaUo7Qgingj1FJ1RJQhhrNuj2i0kJ52im5CHilBcXIOF5wvkGcAS32BzKbfZ4Gy9-XL7GSwrTNbZmsGEZsRmuw2Qy4DCOcx-GcAcOvzc2DMOScNrXOEx4b-zP8tyXE8HYPMdn6Ik3Q4Lnx3yGvn_88G37ubr6-uly--6qso3iueLQlq-0jlMurGuh63oCAqj3jvcGeuot70xDBFcWwDHbytZLMKr33jPb8DP06tB3H-dfC6Ssx5AsDIOZYF6SlpIT2sqSHiIFb4gStGWFfHkvySgVDaEreHEvSIUgnHPB1undAbVxTimC1_sYRhN_a0r0Klzv9F_hehWuiSyxFp4fZyz9CO5_2dFwAV4cAZOKNF9M25D-caxsqzq1cm8PHBQdtwGiTjbAZMGFCDZrN4eHdvkDYXTNZw</recordid><startdate>20100201</startdate><enddate>20100201</enddate><creator>Kathiravan, Mathur Nadarajan</creator><creator>Karthiga Rani, Ravikumar</creator><creator>Karthick, Ramalingam</creator><creator>Muthukumar, Karuppan</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>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>7QO</scope><scope>7ST</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>20100201</creationdate><title>Mass transfer studies on the reduction of Cr(VI) using calcium alginate immobilized Bacillus sp. in packed bed reactor</title><author>Kathiravan, Mathur Nadarajan ; Karthiga Rani, Ravikumar ; Karthick, Ramalingam ; Muthukumar, Karuppan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c493t-3e52975d3137cd5e66b0e7e1ffd3baeb1fc36a40739ceed2c585f8ea9bfff2c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adsorption</topic><topic>Alginates - chemistry</topic><topic>Bacillus</topic><topic>Bacillus - metabolism</topic><topic>Biodegradation, Environmental</topic><topic>Biological and medical sciences</topic><topic>Bioreactors</topic><topic>Biotechnology - methods</topic><topic>Calcium alginate</topic><topic>Chromium - chemistry</topic><topic>Correlation</topic><topic>Cr(VI) reduction</topic><topic>External mass transfer</topic><topic>Flow rate</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glucuronic Acid - chemistry</topic><topic>Hexuronic Acids - chemistry</topic><topic>Immobilization</topic><topic>Industrial Waste</topic><topic>Mass transfer</topic><topic>Mathematical models</topic><topic>Re-circulated packed bed batch reactor</topic><topic>Reactors</topic><topic>Reduction</topic><topic>Temperature</topic><topic>Time Factors</topic><topic>Waste Disposal, Fluid</topic><topic>Water Movements</topic><topic>Water Pollutants, Chemical</topic><topic>Water Purification</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kathiravan, Mathur Nadarajan</creatorcontrib><creatorcontrib>Karthiga Rani, Ravikumar</creatorcontrib><creatorcontrib>Karthick, Ramalingam</creatorcontrib><creatorcontrib>Muthukumar, Karuppan</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>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kathiravan, Mathur Nadarajan</au><au>Karthiga Rani, Ravikumar</au><au>Karthick, Ramalingam</au><au>Muthukumar, Karuppan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mass transfer studies on the reduction of Cr(VI) using calcium alginate immobilized Bacillus sp. in packed bed reactor</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2010-02-01</date><risdate>2010</risdate><volume>101</volume><issue>3</issue><spage>853</spage><epage>858</epage><pages>853-858</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>This study presents the external mass transfer effects on the reduction of hexavalent chromium (Cr(VI)) using calcium alginate immobilized
Bacillus sp. in a re-circulated packed bed batch reactor (RPBR). The effect of flow rate on the reduction Cr(VI) was studied. Theoretically calculated rate constants for various flow rates were analyzed using external film diffusion models and compared with experimental values. The external mass transfer coefficients for the bioconversion of Cr(VI) were also investigated. The external mass transfer effect was correlated with a model of the type
J
D
=
K Re
−(1−
n
). The model was tested with various
K values and the mass transfer correlation
J
D
=
5.7 Re
−0.70 was found to predict the experimental data accurately. The proposed model would be useful for the design of industrial reactor and scale up.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>19800224</pmid><doi>10.1016/j.biortech.2009.08.088</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0960-8524 |
| ispartof | Bioresource technology, 2010-02, Vol.101 (3), p.853-858 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Adsorption Alginates - chemistry Bacillus Bacillus - metabolism Biodegradation, Environmental Biological and medical sciences Bioreactors Biotechnology - methods Calcium alginate Chromium - chemistry Correlation Cr(VI) reduction External mass transfer Flow rate Fundamental and applied biological sciences. Psychology Glucuronic Acid - chemistry Hexuronic Acids - chemistry Immobilization Industrial Waste Mass transfer Mathematical models Re-circulated packed bed batch reactor Reactors Reduction Temperature Time Factors Waste Disposal, Fluid Water Movements Water Pollutants, Chemical Water Purification |
| title | Mass transfer studies on the reduction of Cr(VI) using calcium alginate immobilized Bacillus sp. in packed bed reactor |
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