Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene
BACKGROUND Zero valent iron (ZVI) has been extensively applied in the remediation of groundwater and wastewater contamination. This study aimed to investigate the depassivation effect of iron‐reducing bacterium Shewanella putrefaciens on aged ZVI towards the dechlorination of trichloroethylene in aq...
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| Veröffentlicht in: | Journal of chemical technology and biotechnology (1986) 2017-10, Vol.92 (10), p.2642-2649 |
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| container_title | Journal of chemical technology and biotechnology (1986) |
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| creator | Yang, Zhilong Wang, Xiao‐li Li, Hui Yang, Jie Zhou, Li‐Yang Liu, Yong‐di |
| description | BACKGROUND
Zero valent iron (ZVI) has been extensively applied in the remediation of groundwater and wastewater contamination. This study aimed to investigate the depassivation effect of iron‐reducing bacterium Shewanella putrefaciens on aged ZVI towards the dechlorination of trichloroethylene in aqueous solutions.
RESULTS
Both mmZVI and nZVI showed high reactivity towards TCE until they were passivated. Lepidocrocite was identified as the main corrosion product of nZVI, while green rust was identified as the main corrosion product of mmZVI. More importantly, the combination of iron‐reducing bacteria with aged mmZVI generated greater enhancement of TCE removal than the combination with nZVI. Better bacterium–mineral association conditions determined by SEM and the release of ZVI in the core of aged mmZVI counted for the depassivation effect of iron‐reducing bacterium on aged mmZVI. Moreover, dialysis bag experiments indicated that Shewanella putrefaciens could employ both indirect and direct mechanisms of electron transfer to iron oxide, and the addition of metal chelating agent promoted the iron reducing process greatly. Synergistic mechanisms between dissimilatory iron reducing bacteria (DIRB) and aged ZVI was proposed.
CONCLUSION
This study demonstrated that the contaminants reduction ability of aged ZVI could be recovered to some extent by DIRB and DIRB influenced the long‐term performance of ZVI. © 2017 Society of Chemical Industry |
| doi_str_mv | 10.1002/jctb.5284 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1934195017</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1934195017</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3344-107f8880841df735e248747eef234a913205819083dc1c3d9a8c94f1a7e258953</originalsourceid><addsrcrecordid>eNp1kM1Kw0AUhQdRsFYXvsGAKxdp5y_JzFKLP5WCoNWFmzCd3LRT4kydJJbsfAHBZ_RJTFtx5-pyL985h3sQOqVkQAlhw6WpZ4OYSbGHepSoNBJJQvZRj7BERixO40N0VFVLQkgiWdJDnw_w_fGlTW3fdW29w77Aeg55d3x5HuNZi23wrtsC5I2xbo5nHQzBNq_4cQFr7aAsNV41dYBCGwuuwoUPGNxCOwM53uo6d8A5mEXpg3V_QXWw25OHetGW4OAYHRS6rODkd_bR0_XVdHQbTe5vxqOLSWQ4FyKiJC2klEQKmhcpj4EJmYoUoGBcaEU5I7GkikieG2p4rrQ0ShRUp8BiqWLeR2c731Xwbw1Udbb0TXBdZEYVF1TFhKYddb6jTPBV1f2XrYJ91aHNKMk2bWebtrNN2x073LFrW0L7P5jdjaaXW8UPf7yGnQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1934195017</pqid></control><display><type>article</type><title>Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene</title><source>Wiley Online Library Journals Frontfile Complete</source><creator>Yang, Zhilong ; Wang, Xiao‐li ; Li, Hui ; Yang, Jie ; Zhou, Li‐Yang ; Liu, Yong‐di</creator><creatorcontrib>Yang, Zhilong ; Wang, Xiao‐li ; Li, Hui ; Yang, Jie ; Zhou, Li‐Yang ; Liu, Yong‐di</creatorcontrib><description>BACKGROUND
Zero valent iron (ZVI) has been extensively applied in the remediation of groundwater and wastewater contamination. This study aimed to investigate the depassivation effect of iron‐reducing bacterium Shewanella putrefaciens on aged ZVI towards the dechlorination of trichloroethylene in aqueous solutions.
RESULTS
Both mmZVI and nZVI showed high reactivity towards TCE until they were passivated. Lepidocrocite was identified as the main corrosion product of nZVI, while green rust was identified as the main corrosion product of mmZVI. More importantly, the combination of iron‐reducing bacteria with aged mmZVI generated greater enhancement of TCE removal than the combination with nZVI. Better bacterium–mineral association conditions determined by SEM and the release of ZVI in the core of aged mmZVI counted for the depassivation effect of iron‐reducing bacterium on aged mmZVI. Moreover, dialysis bag experiments indicated that Shewanella putrefaciens could employ both indirect and direct mechanisms of electron transfer to iron oxide, and the addition of metal chelating agent promoted the iron reducing process greatly. Synergistic mechanisms between dissimilatory iron reducing bacteria (DIRB) and aged ZVI was proposed.
CONCLUSION
This study demonstrated that the contaminants reduction ability of aged ZVI could be recovered to some extent by DIRB and DIRB influenced the long‐term performance of ZVI. © 2017 Society of Chemical Industry</description><identifier>ISSN: 0268-2575</identifier><identifier>EISSN: 1097-4660</identifier><identifier>DOI: 10.1002/jctb.5284</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Bacteria ; Bacterial corrosion ; Chelation ; Contaminants ; Contamination ; Corrosion ; Corrosion products ; Dechlorination ; Dialysis ; dissimilatory iron reducing bacteria (DIRB) ; Electron transfer ; Green rust ; Groundwater ; Groundwater pollution ; Iron ; Iron oxides ; Iron-reducing bacteria ; millimetric‐scale zero valent iron (mmZVI) ; nano‐scale zero valent iron (nZVI) ; Reagents ; Rusting ; Solvents ; Trichloroethene ; Trichloroethylene ; trichloroethylene (TCE) ; Wastewater</subject><ispartof>Journal of chemical technology and biotechnology (1986), 2017-10, Vol.92 (10), p.2642-2649</ispartof><rights>2017 Society of Chemical Industry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3344-107f8880841df735e248747eef234a913205819083dc1c3d9a8c94f1a7e258953</citedby><cites>FETCH-LOGICAL-c3344-107f8880841df735e248747eef234a913205819083dc1c3d9a8c94f1a7e258953</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjctb.5284$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjctb.5284$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids></links><search><creatorcontrib>Yang, Zhilong</creatorcontrib><creatorcontrib>Wang, Xiao‐li</creatorcontrib><creatorcontrib>Li, Hui</creatorcontrib><creatorcontrib>Yang, Jie</creatorcontrib><creatorcontrib>Zhou, Li‐Yang</creatorcontrib><creatorcontrib>Liu, Yong‐di</creatorcontrib><title>Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene</title><title>Journal of chemical technology and biotechnology (1986)</title><description>BACKGROUND
Zero valent iron (ZVI) has been extensively applied in the remediation of groundwater and wastewater contamination. This study aimed to investigate the depassivation effect of iron‐reducing bacterium Shewanella putrefaciens on aged ZVI towards the dechlorination of trichloroethylene in aqueous solutions.
RESULTS
Both mmZVI and nZVI showed high reactivity towards TCE until they were passivated. Lepidocrocite was identified as the main corrosion product of nZVI, while green rust was identified as the main corrosion product of mmZVI. More importantly, the combination of iron‐reducing bacteria with aged mmZVI generated greater enhancement of TCE removal than the combination with nZVI. Better bacterium–mineral association conditions determined by SEM and the release of ZVI in the core of aged mmZVI counted for the depassivation effect of iron‐reducing bacterium on aged mmZVI. Moreover, dialysis bag experiments indicated that Shewanella putrefaciens could employ both indirect and direct mechanisms of electron transfer to iron oxide, and the addition of metal chelating agent promoted the iron reducing process greatly. Synergistic mechanisms between dissimilatory iron reducing bacteria (DIRB) and aged ZVI was proposed.
CONCLUSION
This study demonstrated that the contaminants reduction ability of aged ZVI could be recovered to some extent by DIRB and DIRB influenced the long‐term performance of ZVI. © 2017 Society of Chemical Industry</description><subject>Bacteria</subject><subject>Bacterial corrosion</subject><subject>Chelation</subject><subject>Contaminants</subject><subject>Contamination</subject><subject>Corrosion</subject><subject>Corrosion products</subject><subject>Dechlorination</subject><subject>Dialysis</subject><subject>dissimilatory iron reducing bacteria (DIRB)</subject><subject>Electron transfer</subject><subject>Green rust</subject><subject>Groundwater</subject><subject>Groundwater pollution</subject><subject>Iron</subject><subject>Iron oxides</subject><subject>Iron-reducing bacteria</subject><subject>millimetric‐scale zero valent iron (mmZVI)</subject><subject>nano‐scale zero valent iron (nZVI)</subject><subject>Reagents</subject><subject>Rusting</subject><subject>Solvents</subject><subject>Trichloroethene</subject><subject>Trichloroethylene</subject><subject>trichloroethylene (TCE)</subject><subject>Wastewater</subject><issn>0268-2575</issn><issn>1097-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kM1Kw0AUhQdRsFYXvsGAKxdp5y_JzFKLP5WCoNWFmzCd3LRT4kydJJbsfAHBZ_RJTFtx5-pyL985h3sQOqVkQAlhw6WpZ4OYSbGHepSoNBJJQvZRj7BERixO40N0VFVLQkgiWdJDnw_w_fGlTW3fdW29w77Aeg55d3x5HuNZi23wrtsC5I2xbo5nHQzBNq_4cQFr7aAsNV41dYBCGwuuwoUPGNxCOwM53uo6d8A5mEXpg3V_QXWw25OHetGW4OAYHRS6rODkd_bR0_XVdHQbTe5vxqOLSWQ4FyKiJC2klEQKmhcpj4EJmYoUoGBcaEU5I7GkikieG2p4rrQ0ShRUp8BiqWLeR2c731Xwbw1Udbb0TXBdZEYVF1TFhKYddb6jTPBV1f2XrYJ91aHNKMk2bWebtrNN2x073LFrW0L7P5jdjaaXW8UPf7yGnQ</recordid><startdate>201710</startdate><enddate>201710</enddate><creator>Yang, Zhilong</creator><creator>Wang, Xiao‐li</creator><creator>Li, Hui</creator><creator>Yang, Jie</creator><creator>Zhou, Li‐Yang</creator><creator>Liu, Yong‐di</creator><general>John Wiley & Sons, Ltd</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>201710</creationdate><title>Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene</title><author>Yang, Zhilong ; Wang, Xiao‐li ; Li, Hui ; Yang, Jie ; Zhou, Li‐Yang ; Liu, Yong‐di</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3344-107f8880841df735e248747eef234a913205819083dc1c3d9a8c94f1a7e258953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Bacteria</topic><topic>Bacterial corrosion</topic><topic>Chelation</topic><topic>Contaminants</topic><topic>Contamination</topic><topic>Corrosion</topic><topic>Corrosion products</topic><topic>Dechlorination</topic><topic>Dialysis</topic><topic>dissimilatory iron reducing bacteria (DIRB)</topic><topic>Electron transfer</topic><topic>Green rust</topic><topic>Groundwater</topic><topic>Groundwater pollution</topic><topic>Iron</topic><topic>Iron oxides</topic><topic>Iron-reducing bacteria</topic><topic>millimetric‐scale zero valent iron (mmZVI)</topic><topic>nano‐scale zero valent iron (nZVI)</topic><topic>Reagents</topic><topic>Rusting</topic><topic>Solvents</topic><topic>Trichloroethene</topic><topic>Trichloroethylene</topic><topic>trichloroethylene (TCE)</topic><topic>Wastewater</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Zhilong</creatorcontrib><creatorcontrib>Wang, Xiao‐li</creatorcontrib><creatorcontrib>Li, Hui</creatorcontrib><creatorcontrib>Yang, Jie</creatorcontrib><creatorcontrib>Zhou, Li‐Yang</creatorcontrib><creatorcontrib>Liu, Yong‐di</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Zhilong</au><au>Wang, Xiao‐li</au><au>Li, Hui</au><au>Yang, Jie</au><au>Zhou, Li‐Yang</au><au>Liu, Yong‐di</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene</atitle><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle><date>2017-10</date><risdate>2017</risdate><volume>92</volume><issue>10</issue><spage>2642</spage><epage>2649</epage><pages>2642-2649</pages><issn>0268-2575</issn><eissn>1097-4660</eissn><abstract>BACKGROUND
Zero valent iron (ZVI) has been extensively applied in the remediation of groundwater and wastewater contamination. This study aimed to investigate the depassivation effect of iron‐reducing bacterium Shewanella putrefaciens on aged ZVI towards the dechlorination of trichloroethylene in aqueous solutions.
RESULTS
Both mmZVI and nZVI showed high reactivity towards TCE until they were passivated. Lepidocrocite was identified as the main corrosion product of nZVI, while green rust was identified as the main corrosion product of mmZVI. More importantly, the combination of iron‐reducing bacteria with aged mmZVI generated greater enhancement of TCE removal than the combination with nZVI. Better bacterium–mineral association conditions determined by SEM and the release of ZVI in the core of aged mmZVI counted for the depassivation effect of iron‐reducing bacterium on aged mmZVI. Moreover, dialysis bag experiments indicated that Shewanella putrefaciens could employ both indirect and direct mechanisms of electron transfer to iron oxide, and the addition of metal chelating agent promoted the iron reducing process greatly. Synergistic mechanisms between dissimilatory iron reducing bacteria (DIRB) and aged ZVI was proposed.
CONCLUSION
This study demonstrated that the contaminants reduction ability of aged ZVI could be recovered to some extent by DIRB and DIRB influenced the long‐term performance of ZVI. © 2017 Society of Chemical Industry</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/jctb.5284</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of chemical technology and biotechnology (1986), 2017-10, Vol.92 (10), p.2642-2649 |
| issn | 0268-2575 1097-4660 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Bacteria Bacterial corrosion Chelation Contaminants Contamination Corrosion Corrosion products Dechlorination Dialysis dissimilatory iron reducing bacteria (DIRB) Electron transfer Green rust Groundwater Groundwater pollution Iron Iron oxides Iron-reducing bacteria millimetric‐scale zero valent iron (mmZVI) nano‐scale zero valent iron (nZVI) Reagents Rusting Solvents Trichloroethene Trichloroethylene trichloroethylene (TCE) Wastewater |
| title | Re‐activation of aged‐ZVI by iron‐reducing bacterium Shewanella putrefaciens for enhanced reductive dechlorination of trichloroethylene |
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