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The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes
Electrochemical disinfection has gained increasing attention as an alternative for conventional drinking water treatment due to its high effectiveness and environmental compatibility. The most common method of electrochemical disinfection is the use of electro-generated oxidants, such as active chlo...
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| Published in: | Water research (Oxford) 2009-03, Vol.43 (4), p.895-901 |
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| cites | cdi_FETCH-LOGICAL-c542t-3f66b25372c0f6ca1c48a9b26efb6d501e4dd0b11b000b4dcc9e9a8182ffba053 |
| container_end_page | 901 |
| container_issue | 4 |
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| container_title | Water research (Oxford) |
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| creator | Jeong, Joonseon Kim, Choonsoo Yoon, Jeyong |
| description | Electrochemical disinfection has gained increasing attention as an alternative for conventional drinking water treatment due to its high effectiveness and environmental compatibility. The most common method of electrochemical disinfection is the use of electro-generated oxidants, such as active chlorine and reactive oxygen species, as disinfectants. This study examined the role of electrode material on the generation of oxidants, and elucidated the different reaction pathways for generating individual oxidants by employing boron-doped diamond (BDD), Ti/RuO
2, Ti/IrO
2, Ti/Pt–IrO
2, and Pt as anode materials. The efficiency of
OH production, as determined by
para-chlorobenzoic acid (
pCBA) degradation, was in the order of BDD
≫
Ti/RuO
2
≈
Pt. No significant production of
OH was observed at Ti/IrO
2 and Ti/Pt–IrO
2. The
OH was found to play a key role in O
3 generation at BDD, but not at the other electrodes. The production of active chlorine was in the order of Ti/IrO
2
>
Ti/RuO
2
>
Ti/Pt–IrO
2
>
BDD
>
Pt. The large difference in this order from that of ROS was attributed to the difference in the electrocatalytic activity of each electrode material toward the production of active chlorine, as evidenced by linear sweep voltammetry (LSV) measurements. In addition, the characteristics of microbial inactivation as a function of electrode material were examined under the presence of an inert electrolyte, using
Escherichia coli as an indicator microorganism. |
| doi_str_mv | 10.1016/j.watres.2008.11.033 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_20373417</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0043135408005770</els_id><sourcerecordid>14018319</sourcerecordid><originalsourceid>FETCH-LOGICAL-c542t-3f66b25372c0f6ca1c48a9b26efb6d501e4dd0b11b000b4dcc9e9a8182ffba053</originalsourceid><addsrcrecordid>eNqF0ctu1TAQBmALgeih8AYIsoFdgsd2bhskVHGTKrGgXVuOPW59lDjFzinwBLw2EyWCHaziKN_MxPMz9hx4BRyaN8fqu1kS5kpw3lUAFZfyATtA1_alUKp7yA6cK1mCrNUZe5LzkXMuhOwfszPoeadEXR_Yr6tbLNB7tEsx-wJHOqTZYTGZBVMwYzHHYiFzgxGTWQK9kpt_BGfikgsTXTEFm-ZhtSEau4T7jYWtcG9pb5EcGRdyiOu81dzRB8wZ81P2yJsx47P9ec6uP7y_uvhUXn75-Pni3WVpayWWUvqmGUQtW2G5b6wBqzrTD6JBPzSu5oDKOT4ADHTZQTlre-xNB53wfjC8lufs9daXJn87YV70FLLFcTQR51PWgstWKmj_C0Fx6CT0BNUGaQk5J_T6LoXJpJ8auF6T0ke9JaXXpDSApqSo7MXe_zRM6P4W7dEQeLUDk2lvPploQ_7jBEDbtGJt9HJz3sza3CQy118FB0mjBc0XJN5uAmmx9wGTzjZgtOhCohy0m8O___U3IJK_4w</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>14018319</pqid></control><display><type>article</type><title>The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes</title><source>Elsevier</source><creator>Jeong, Joonseon ; Kim, Choonsoo ; Yoon, Jeyong</creator><creatorcontrib>Jeong, Joonseon ; Kim, Choonsoo ; Yoon, Jeyong</creatorcontrib><description>Electrochemical disinfection has gained increasing attention as an alternative for conventional drinking water treatment due to its high effectiveness and environmental compatibility. The most common method of electrochemical disinfection is the use of electro-generated oxidants, such as active chlorine and reactive oxygen species, as disinfectants. This study examined the role of electrode material on the generation of oxidants, and elucidated the different reaction pathways for generating individual oxidants by employing boron-doped diamond (BDD), Ti/RuO
2, Ti/IrO
2, Ti/Pt–IrO
2, and Pt as anode materials. The efficiency of
OH production, as determined by
para-chlorobenzoic acid (
pCBA) degradation, was in the order of BDD
≫
Ti/RuO
2
≈
Pt. No significant production of
OH was observed at Ti/IrO
2 and Ti/Pt–IrO
2. The
OH was found to play a key role in O
3 generation at BDD, but not at the other electrodes. The production of active chlorine was in the order of Ti/IrO
2
>
Ti/RuO
2
>
Ti/Pt–IrO
2
>
BDD
>
Pt. The large difference in this order from that of ROS was attributed to the difference in the electrocatalytic activity of each electrode material toward the production of active chlorine, as evidenced by linear sweep voltammetry (LSV) measurements. In addition, the characteristics of microbial inactivation as a function of electrode material were examined under the presence of an inert electrolyte, using
Escherichia coli as an indicator microorganism.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2008.11.033</identifier><identifier>PMID: 19084255</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Active chlorine ; Applied sciences ; boron ; chlorine ; Chlorine - analysis ; Diamond ; disinfection ; Disinfection - methods ; drinking water ; Electrochemical disinfection ; electrochemistry ; Electrochemistry - methods ; Electrode material ; Electrodes ; Escherichia coli ; Exact sciences and technology ; Hydroxyl radical ; Hydroxyl Radical - analysis ; iridium ; microbial contamination ; Other industrial wastes. Sewage sludge ; oxidants ; Oxidants - analysis ; para-chlorobenzoic acid ; Platinum ; Pollution ; Reactive oxygen species ; Reactive Oxygen Species - analysis ; Titanium ; Wastes ; water treatment ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2009-03, Vol.43 (4), p.895-901</ispartof><rights>2008 Elsevier Ltd</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c542t-3f66b25372c0f6ca1c48a9b26efb6d501e4dd0b11b000b4dcc9e9a8182ffba053</citedby><cites>FETCH-LOGICAL-c542t-3f66b25372c0f6ca1c48a9b26efb6d501e4dd0b11b000b4dcc9e9a8182ffba053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,783,787,27936,27937</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21176723$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19084255$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jeong, Joonseon</creatorcontrib><creatorcontrib>Kim, Choonsoo</creatorcontrib><creatorcontrib>Yoon, Jeyong</creatorcontrib><title>The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Electrochemical disinfection has gained increasing attention as an alternative for conventional drinking water treatment due to its high effectiveness and environmental compatibility. The most common method of electrochemical disinfection is the use of electro-generated oxidants, such as active chlorine and reactive oxygen species, as disinfectants. This study examined the role of electrode material on the generation of oxidants, and elucidated the different reaction pathways for generating individual oxidants by employing boron-doped diamond (BDD), Ti/RuO
2, Ti/IrO
2, Ti/Pt–IrO
2, and Pt as anode materials. The efficiency of
OH production, as determined by
para-chlorobenzoic acid (
pCBA) degradation, was in the order of BDD
≫
Ti/RuO
2
≈
Pt. No significant production of
OH was observed at Ti/IrO
2 and Ti/Pt–IrO
2. The
OH was found to play a key role in O
3 generation at BDD, but not at the other electrodes. The production of active chlorine was in the order of Ti/IrO
2
>
Ti/RuO
2
>
Ti/Pt–IrO
2
>
BDD
>
Pt. The large difference in this order from that of ROS was attributed to the difference in the electrocatalytic activity of each electrode material toward the production of active chlorine, as evidenced by linear sweep voltammetry (LSV) measurements. In addition, the characteristics of microbial inactivation as a function of electrode material were examined under the presence of an inert electrolyte, using
Escherichia coli as an indicator microorganism.</description><subject>Active chlorine</subject><subject>Applied sciences</subject><subject>boron</subject><subject>chlorine</subject><subject>Chlorine - analysis</subject><subject>Diamond</subject><subject>disinfection</subject><subject>Disinfection - methods</subject><subject>drinking water</subject><subject>Electrochemical disinfection</subject><subject>electrochemistry</subject><subject>Electrochemistry - methods</subject><subject>Electrode material</subject><subject>Electrodes</subject><subject>Escherichia coli</subject><subject>Exact sciences and technology</subject><subject>Hydroxyl radical</subject><subject>Hydroxyl Radical - analysis</subject><subject>iridium</subject><subject>microbial contamination</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>oxidants</subject><subject>Oxidants - analysis</subject><subject>para-chlorobenzoic acid</subject><subject>Platinum</subject><subject>Pollution</subject><subject>Reactive oxygen species</subject><subject>Reactive Oxygen Species - analysis</subject><subject>Titanium</subject><subject>Wastes</subject><subject>water treatment</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqF0ctu1TAQBmALgeih8AYIsoFdgsd2bhskVHGTKrGgXVuOPW59lDjFzinwBLw2EyWCHaziKN_MxPMz9hx4BRyaN8fqu1kS5kpw3lUAFZfyATtA1_alUKp7yA6cK1mCrNUZe5LzkXMuhOwfszPoeadEXR_Yr6tbLNB7tEsx-wJHOqTZYTGZBVMwYzHHYiFzgxGTWQK9kpt_BGfikgsTXTEFm-ZhtSEau4T7jYWtcG9pb5EcGRdyiOu81dzRB8wZ81P2yJsx47P9ec6uP7y_uvhUXn75-Pni3WVpayWWUvqmGUQtW2G5b6wBqzrTD6JBPzSu5oDKOT4ADHTZQTlre-xNB53wfjC8lufs9daXJn87YV70FLLFcTQR51PWgstWKmj_C0Fx6CT0BNUGaQk5J_T6LoXJpJ8auF6T0ke9JaXXpDSApqSo7MXe_zRM6P4W7dEQeLUDk2lvPploQ_7jBEDbtGJt9HJz3sza3CQy118FB0mjBc0XJN5uAmmx9wGTzjZgtOhCohy0m8O___U3IJK_4w</recordid><startdate>20090301</startdate><enddate>20090301</enddate><creator>Jeong, Joonseon</creator><creator>Kim, Choonsoo</creator><creator>Yoon, Jeyong</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><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>7QH</scope><scope>7QL</scope><scope>7T7</scope><scope>7TV</scope><scope>7UA</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>L.G</scope><scope>P64</scope></search><sort><creationdate>20090301</creationdate><title>The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes</title><author>Jeong, Joonseon ; Kim, Choonsoo ; Yoon, Jeyong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c542t-3f66b25372c0f6ca1c48a9b26efb6d501e4dd0b11b000b4dcc9e9a8182ffba053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Active chlorine</topic><topic>Applied sciences</topic><topic>boron</topic><topic>chlorine</topic><topic>Chlorine - analysis</topic><topic>Diamond</topic><topic>disinfection</topic><topic>Disinfection - methods</topic><topic>drinking water</topic><topic>Electrochemical disinfection</topic><topic>electrochemistry</topic><topic>Electrochemistry - methods</topic><topic>Electrode material</topic><topic>Electrodes</topic><topic>Escherichia coli</topic><topic>Exact sciences and technology</topic><topic>Hydroxyl radical</topic><topic>Hydroxyl Radical - analysis</topic><topic>iridium</topic><topic>microbial contamination</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>oxidants</topic><topic>Oxidants - analysis</topic><topic>para-chlorobenzoic acid</topic><topic>Platinum</topic><topic>Pollution</topic><topic>Reactive oxygen species</topic><topic>Reactive Oxygen Species - analysis</topic><topic>Titanium</topic><topic>Wastes</topic><topic>water treatment</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jeong, Joonseon</creatorcontrib><creatorcontrib>Kim, Choonsoo</creatorcontrib><creatorcontrib>Yoon, Jeyong</creatorcontrib><collection>AGRIS</collection><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>Aqualine</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jeong, Joonseon</au><au>Kim, Choonsoo</au><au>Yoon, Jeyong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2009-03-01</date><risdate>2009</risdate><volume>43</volume><issue>4</issue><spage>895</spage><epage>901</epage><pages>895-901</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><coden>WATRAG</coden><abstract>Electrochemical disinfection has gained increasing attention as an alternative for conventional drinking water treatment due to its high effectiveness and environmental compatibility. The most common method of electrochemical disinfection is the use of electro-generated oxidants, such as active chlorine and reactive oxygen species, as disinfectants. This study examined the role of electrode material on the generation of oxidants, and elucidated the different reaction pathways for generating individual oxidants by employing boron-doped diamond (BDD), Ti/RuO
2, Ti/IrO
2, Ti/Pt–IrO
2, and Pt as anode materials. The efficiency of
OH production, as determined by
para-chlorobenzoic acid (
pCBA) degradation, was in the order of BDD
≫
Ti/RuO
2
≈
Pt. No significant production of
OH was observed at Ti/IrO
2 and Ti/Pt–IrO
2. The
OH was found to play a key role in O
3 generation at BDD, but not at the other electrodes. The production of active chlorine was in the order of Ti/IrO
2
>
Ti/RuO
2
>
Ti/Pt–IrO
2
>
BDD
>
Pt. The large difference in this order from that of ROS was attributed to the difference in the electrocatalytic activity of each electrode material toward the production of active chlorine, as evidenced by linear sweep voltammetry (LSV) measurements. In addition, the characteristics of microbial inactivation as a function of electrode material were examined under the presence of an inert electrolyte, using
Escherichia coli as an indicator microorganism.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>19084255</pmid><doi>10.1016/j.watres.2008.11.033</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0043-1354 |
| ispartof | Water research (Oxford), 2009-03, Vol.43 (4), p.895-901 |
| issn | 0043-1354 1879-2448 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_20373417 |
| source | Elsevier |
| subjects | Active chlorine Applied sciences boron chlorine Chlorine - analysis Diamond disinfection Disinfection - methods drinking water Electrochemical disinfection electrochemistry Electrochemistry - methods Electrode material Electrodes Escherichia coli Exact sciences and technology Hydroxyl radical Hydroxyl Radical - analysis iridium microbial contamination Other industrial wastes. Sewage sludge oxidants Oxidants - analysis para-chlorobenzoic acid Platinum Pollution Reactive oxygen species Reactive Oxygen Species - analysis Titanium Wastes water treatment Water treatment and pollution |
| title | The effect of electrode material on the generation of oxidants and microbial inactivation in the electrochemical disinfection processes |
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