Inactivation by solar photo-Fenton in pet bottles of wild enteric bacteria of natural well water: Absence of re-growth after one week of subsequent storage
[Display omitted] ► Inactivation of wild enteric bacteria by near to neutral photo-Fenton. ► Evaluation of the photo-Fenton disinfection efficiency in natural well water. ► Description of the photo-Fenton disinfection mechanism at near to neutral pH. ► No bacterial regrowth observed after one week s...
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| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2013-01, Vol.129, p.309-317 |
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| creator | Ndounla, J. Spuhler, D. Kenfack, S. Wéthé, J. Pulgarin, C. |
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► Inactivation of wild enteric bacteria by near to neutral photo-Fenton. ► Evaluation of the photo-Fenton disinfection efficiency in natural well water. ► Description of the photo-Fenton disinfection mechanism at near to neutral pH. ► No bacterial regrowth observed after one week subsequent storage.
Iron photo-assisted inactivation of wild enteric bacteria (total coliforms/E. coli and Salmonella spp.) was carried out in water from the Sahelian wells having different pH (W1: 4.9 and W2: 6.3) and a natural iron content of 0.07mg/L. We evaluate the efficiency of the disinfection on different systems containing both or only one Fenton reagent (H2O2/Fe2+): (i) H2O2/Fe2+/hv, (ii) Fe2+/hv, (iii) H2O2/hv, and (iv) only light irradiation (hv) at lab and field scale. Generally, 0.6mg/L of Fe2+ and/or 8.5mg/L of H2O2 were used in the Fenton reagent. The systems H2O2/Fe2+/hv and H2O2/hv led to total inactivation of Salmonella and E. coli. The natural iron content (0.07mg/L) was enough to drive an efficient photo-Fenton process leading to total bacterial inactivation. Our results show that: (i) the iron salt present in Sahelian water is enough to perform a photo-Fenton disinfection of drinking water when adding H2O2, (ii) addition of external iron salts at near neutral pH has no additional effect on the bacterial photo-Fenton inactivation process. After one week of storage, no enteric bacteria re-growth was observed in treated waters. Mechanistic suggestions are presented to explain the observed results. |
| doi_str_mv | 10.1016/j.apcatb.2012.09.016 |
| format | Article |
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► Inactivation of wild enteric bacteria by near to neutral photo-Fenton. ► Evaluation of the photo-Fenton disinfection efficiency in natural well water. ► Description of the photo-Fenton disinfection mechanism at near to neutral pH. ► No bacterial regrowth observed after one week subsequent storage.
Iron photo-assisted inactivation of wild enteric bacteria (total coliforms/E. coli and Salmonella spp.) was carried out in water from the Sahelian wells having different pH (W1: 4.9 and W2: 6.3) and a natural iron content of 0.07mg/L. We evaluate the efficiency of the disinfection on different systems containing both or only one Fenton reagent (H2O2/Fe2+): (i) H2O2/Fe2+/hv, (ii) Fe2+/hv, (iii) H2O2/hv, and (iv) only light irradiation (hv) at lab and field scale. Generally, 0.6mg/L of Fe2+ and/or 8.5mg/L of H2O2 were used in the Fenton reagent. The systems H2O2/Fe2+/hv and H2O2/hv led to total inactivation of Salmonella and E. coli. The natural iron content (0.07mg/L) was enough to drive an efficient photo-Fenton process leading to total bacterial inactivation. Our results show that: (i) the iron salt present in Sahelian water is enough to perform a photo-Fenton disinfection of drinking water when adding H2O2, (ii) addition of external iron salts at near neutral pH has no additional effect on the bacterial photo-Fenton inactivation process. After one week of storage, no enteric bacteria re-growth was observed in treated waters. Mechanistic suggestions are presented to explain the observed results.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2012.09.016</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Bacteria ; Catalysis ; Chemistry ; Drinking water ; Enteric bacteria ; Escherichia coli ; Exact sciences and technology ; General and physical chemistry ; Inactivation ; Iron ; Light irradiation ; Photo-Fenton ; Photochemistry ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics) ; Salmonella ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Well waters</subject><ispartof>Applied catalysis. B, Environmental, 2013-01, Vol.129, p.309-317</ispartof><rights>2012 Elsevier B.V.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-227bdbcf5ee0169a5c13e67d0fd680081f6183c508a05686d0ac3050119e973f3</citedby><cites>FETCH-LOGICAL-c485t-227bdbcf5ee0169a5c13e67d0fd680081f6183c508a05686d0ac3050119e973f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0926337312004171$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26903691$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ndounla, J.</creatorcontrib><creatorcontrib>Spuhler, D.</creatorcontrib><creatorcontrib>Kenfack, S.</creatorcontrib><creatorcontrib>Wéthé, J.</creatorcontrib><creatorcontrib>Pulgarin, C.</creatorcontrib><title>Inactivation by solar photo-Fenton in pet bottles of wild enteric bacteria of natural well water: Absence of re-growth after one week of subsequent storage</title><title>Applied catalysis. B, Environmental</title><description>[Display omitted]
► Inactivation of wild enteric bacteria by near to neutral photo-Fenton. ► Evaluation of the photo-Fenton disinfection efficiency in natural well water. ► Description of the photo-Fenton disinfection mechanism at near to neutral pH. ► No bacterial regrowth observed after one week subsequent storage.
Iron photo-assisted inactivation of wild enteric bacteria (total coliforms/E. coli and Salmonella spp.) was carried out in water from the Sahelian wells having different pH (W1: 4.9 and W2: 6.3) and a natural iron content of 0.07mg/L. We evaluate the efficiency of the disinfection on different systems containing both or only one Fenton reagent (H2O2/Fe2+): (i) H2O2/Fe2+/hv, (ii) Fe2+/hv, (iii) H2O2/hv, and (iv) only light irradiation (hv) at lab and field scale. Generally, 0.6mg/L of Fe2+ and/or 8.5mg/L of H2O2 were used in the Fenton reagent. The systems H2O2/Fe2+/hv and H2O2/hv led to total inactivation of Salmonella and E. coli. The natural iron content (0.07mg/L) was enough to drive an efficient photo-Fenton process leading to total bacterial inactivation. Our results show that: (i) the iron salt present in Sahelian water is enough to perform a photo-Fenton disinfection of drinking water when adding H2O2, (ii) addition of external iron salts at near neutral pH has no additional effect on the bacterial photo-Fenton inactivation process. After one week of storage, no enteric bacteria re-growth was observed in treated waters. Mechanistic suggestions are presented to explain the observed results.</description><subject>Bacteria</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Drinking water</subject><subject>Enteric bacteria</subject><subject>Escherichia coli</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Inactivation</subject><subject>Iron</subject><subject>Light irradiation</subject><subject>Photo-Fenton</subject><subject>Photochemistry</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><subject>Salmonella</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Well waters</subject><issn>0926-3373</issn><issn>1873-3883</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFUcFu1DAQtRBILAt_wMEXJC4J43jjOByQqopCpUpc4GxNnEnrJY0X29tVv4WfZaKtOMLB9ui9N288M0K8VVArUObDvsaDxzLUDaimhr5m8JnYKNvpSlurn4sN9I2ptO70S_Eq5z0ANLqxG_H7ekFfwgOWEBc5PMocZ0zycBdLrK5oKYyGRR6oyCGWMlOWcZKnMI-SSUrBy4ENOMCVWLAcE87yRDNfyPhHeTFkWjytdKLqNsVTuZM4MSfjQiylnyuXj6z7dWRXmUtMeEuvxYsJ50xvnt6t-HH1-fvl1-rm25fry4ubyu9sW6qm6YZx8FNLxH332HqlyXQjTKOxAFZNRlntW7AIrbFmBPQaWlCqp77Tk96K92ffQ4r8gVzcfcieO8CF4jE7ZTrV7oxu9P-lLbR6p3s-W7E7S32KOSea3CGFe0yPToFb1-b27rw2t67NQe8Y5LR3TxUwe5ynhIsP-W9uY3rQples-3TWEU_mIVBy2Yd1zmNI5IsbY_h3oT9BJ7EN</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Ndounla, J.</creator><creator>Spuhler, D.</creator><creator>Kenfack, S.</creator><creator>Wéthé, J.</creator><creator>Pulgarin, C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SR</scope><scope>7SU</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20130101</creationdate><title>Inactivation by solar photo-Fenton in pet bottles of wild enteric bacteria of natural well water: Absence of re-growth after one week of subsequent storage</title><author>Ndounla, J. ; Spuhler, D. ; Kenfack, S. ; Wéthé, J. ; Pulgarin, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c485t-227bdbcf5ee0169a5c13e67d0fd680081f6183c508a05686d0ac3050119e973f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Bacteria</topic><topic>Catalysis</topic><topic>Chemistry</topic><topic>Drinking water</topic><topic>Enteric bacteria</topic><topic>Escherichia coli</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Inactivation</topic><topic>Iron</topic><topic>Light irradiation</topic><topic>Photo-Fenton</topic><topic>Photochemistry</topic><topic>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</topic><topic>Salmonella</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Well waters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ndounla, J.</creatorcontrib><creatorcontrib>Spuhler, D.</creatorcontrib><creatorcontrib>Kenfack, S.</creatorcontrib><creatorcontrib>Wéthé, J.</creatorcontrib><creatorcontrib>Pulgarin, C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied catalysis. B, Environmental</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ndounla, J.</au><au>Spuhler, D.</au><au>Kenfack, S.</au><au>Wéthé, J.</au><au>Pulgarin, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inactivation by solar photo-Fenton in pet bottles of wild enteric bacteria of natural well water: Absence of re-growth after one week of subsequent storage</atitle><jtitle>Applied catalysis. B, Environmental</jtitle><date>2013-01-01</date><risdate>2013</risdate><volume>129</volume><spage>309</spage><epage>317</epage><pages>309-317</pages><issn>0926-3373</issn><eissn>1873-3883</eissn><abstract>[Display omitted]
► Inactivation of wild enteric bacteria by near to neutral photo-Fenton. ► Evaluation of the photo-Fenton disinfection efficiency in natural well water. ► Description of the photo-Fenton disinfection mechanism at near to neutral pH. ► No bacterial regrowth observed after one week subsequent storage.
Iron photo-assisted inactivation of wild enteric bacteria (total coliforms/E. coli and Salmonella spp.) was carried out in water from the Sahelian wells having different pH (W1: 4.9 and W2: 6.3) and a natural iron content of 0.07mg/L. We evaluate the efficiency of the disinfection on different systems containing both or only one Fenton reagent (H2O2/Fe2+): (i) H2O2/Fe2+/hv, (ii) Fe2+/hv, (iii) H2O2/hv, and (iv) only light irradiation (hv) at lab and field scale. Generally, 0.6mg/L of Fe2+ and/or 8.5mg/L of H2O2 were used in the Fenton reagent. The systems H2O2/Fe2+/hv and H2O2/hv led to total inactivation of Salmonella and E. coli. The natural iron content (0.07mg/L) was enough to drive an efficient photo-Fenton process leading to total bacterial inactivation. Our results show that: (i) the iron salt present in Sahelian water is enough to perform a photo-Fenton disinfection of drinking water when adding H2O2, (ii) addition of external iron salts at near neutral pH has no additional effect on the bacterial photo-Fenton inactivation process. After one week of storage, no enteric bacteria re-growth was observed in treated waters. Mechanistic suggestions are presented to explain the observed results.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcatb.2012.09.016</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bacteria Catalysis Chemistry Drinking water Enteric bacteria Escherichia coli Exact sciences and technology General and physical chemistry Inactivation Iron Light irradiation Photo-Fenton Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Salmonella Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Well waters |
| title | Inactivation by solar photo-Fenton in pet bottles of wild enteric bacteria of natural well water: Absence of re-growth after one week of subsequent storage |
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