Loading…
The role of oxygen in the degradation of p-chlorophenol by Fenton system
The role of oxygen in the degradation pathway of 4-CP by Fenton system was investigated in this paper. The degradation of 4-CP, changes of Fenton reagent's concentration and formation of the intermediates in Fenton/O 2 system were respectively compared with those in Fenton/N 2 system. The resul...
Saved in:
| Published in: | Journal of hazardous materials 2007-01, Vol.139 (1), p.108-115 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3 |
| container_end_page | 115 |
| container_issue | 1 |
| container_start_page | 108 |
| container_title | Journal of hazardous materials |
| container_volume | 139 |
| creator | Du, Yingxun Zhou, Minghua Lei, Lecheng |
| description | The role of oxygen in the degradation pathway of 4-CP by Fenton system was investigated in this paper. The degradation of 4-CP, changes of Fenton reagent's concentration and formation of the intermediates in Fenton/O
2 system were respectively compared with those in Fenton/N
2 system. The result showed that both 4-CP degradation and COD
cr removal in Fenton/O
2 system were prior to those in Fenton/N
2 system. Investigation into the intermediates suggested that the presence of oxygen impeded the formation of 4-chlorocatechol and accelerated the production of organic acids such as maleic acid, fumaric acid, acetic acid and oxalic acid. Based on the changes of reaction substances and the intermediates, the degradation mechanism of 4-CP by Fenton system in the presence of O
2 was suggested. The dissolved oxygen competed against hydroxyl radical to react with
ortho-parachlorohydroxyphenyl radical (ClHP
) producing
ortho-parachlorophenolperoxyl radical (ClPP
) and impeding the generation of 4-chlorocatechol. In addition, the reaction of oxygen with (Cl)PP radical increased the extent of benzene ring cleavage, producing more aliphatic organic acids. This study makes clear the mechanism of Fenton/O
2 system and thus, it is helpful to establish the kinetic model and provide a good guide to the treatment of real wastewater. |
| doi_str_mv | 10.1016/j.jhazmat.2006.06.002 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_68354275</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0304389406006327</els_id><sourcerecordid>68354275</sourcerecordid><originalsourceid>FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3</originalsourceid><addsrcrecordid>eNqFkU1r3DAQhkVpaTZpf0KLL-3N29G3fSolNE0g0Et6FrI0zmqxra3kLd3--sqsIceFgYF5n_lgXkI-UNhSoOrLfrvf2X-jnbcMQG2XAPaKbGijec05V6_JBjiImjetuCLXOe8BgGop3pIrqhoNnLMNuX_aYZXigFXsq_j39IxTFaZqLlWPz8l6O4c4LeKhdrshpnjY4RSHqjtVdzjNRcunPOP4jrzp7ZDx_ZpvyK-770-39_Xjzx8Pt98eayeknOsemVLcIgjumceOM0Z5rzQAtpa2jHXWSum11k70yktnW9fIDpq2cJQ6fkM-n-ceUvx9xDybMWSHw2AnjMdsVMOlYFpeBFkrNZflU5dA2irNNacFlGfQpZhzwt4cUhhtOhkKZjHF7M1qillMMUsAK30f1wXHbkT_0rW6UIBPK2Czs0Of7ORCfuEaUaaLhft65rA8-E_AZLILODn0IaGbjY_hwin_AXBsq8c</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>19673731</pqid></control><display><type>article</type><title>The role of oxygen in the degradation of p-chlorophenol by Fenton system</title><source>ScienceDirect Freedom Collection</source><creator>Du, Yingxun ; Zhou, Minghua ; Lei, Lecheng</creator><creatorcontrib>Du, Yingxun ; Zhou, Minghua ; Lei, Lecheng</creatorcontrib><description>The role of oxygen in the degradation pathway of 4-CP by Fenton system was investigated in this paper. The degradation of 4-CP, changes of Fenton reagent's concentration and formation of the intermediates in Fenton/O
2 system were respectively compared with those in Fenton/N
2 system. The result showed that both 4-CP degradation and COD
cr removal in Fenton/O
2 system were prior to those in Fenton/N
2 system. Investigation into the intermediates suggested that the presence of oxygen impeded the formation of 4-chlorocatechol and accelerated the production of organic acids such as maleic acid, fumaric acid, acetic acid and oxalic acid. Based on the changes of reaction substances and the intermediates, the degradation mechanism of 4-CP by Fenton system in the presence of O
2 was suggested. The dissolved oxygen competed against hydroxyl radical to react with
ortho-parachlorohydroxyphenyl radical (ClHP
) producing
ortho-parachlorophenolperoxyl radical (ClPP
) and impeding the generation of 4-chlorocatechol. In addition, the reaction of oxygen with (Cl)PP radical increased the extent of benzene ring cleavage, producing more aliphatic organic acids. This study makes clear the mechanism of Fenton/O
2 system and thus, it is helpful to establish the kinetic model and provide a good guide to the treatment of real wastewater.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2006.06.002</identifier><identifier>PMID: 16870332</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>4-CP ; Applied sciences ; Carboxylic Acids - chemical synthesis ; Catechols - chemical synthesis ; Chemical engineering ; Chlorophenols - metabolism ; Exact sciences and technology ; Fenton system ; General purification processes ; Hydrocarbons, Aromatic - chemical synthesis ; Hydrogen Peroxide - chemistry ; Iron - chemistry ; Mechanism ; Nitrogen - chemistry ; Oxidation-Reduction ; Oxygen ; Oxygen - chemistry ; Pollution ; Reactors ; Wastewaters ; Water treatment and pollution</subject><ispartof>Journal of hazardous materials, 2007-01, Vol.139 (1), p.108-115</ispartof><rights>2006 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3</citedby><cites>FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18410142$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16870332$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Du, Yingxun</creatorcontrib><creatorcontrib>Zhou, Minghua</creatorcontrib><creatorcontrib>Lei, Lecheng</creatorcontrib><title>The role of oxygen in the degradation of p-chlorophenol by Fenton system</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>The role of oxygen in the degradation pathway of 4-CP by Fenton system was investigated in this paper. The degradation of 4-CP, changes of Fenton reagent's concentration and formation of the intermediates in Fenton/O
2 system were respectively compared with those in Fenton/N
2 system. The result showed that both 4-CP degradation and COD
cr removal in Fenton/O
2 system were prior to those in Fenton/N
2 system. Investigation into the intermediates suggested that the presence of oxygen impeded the formation of 4-chlorocatechol and accelerated the production of organic acids such as maleic acid, fumaric acid, acetic acid and oxalic acid. Based on the changes of reaction substances and the intermediates, the degradation mechanism of 4-CP by Fenton system in the presence of O
2 was suggested. The dissolved oxygen competed against hydroxyl radical to react with
ortho-parachlorohydroxyphenyl radical (ClHP
) producing
ortho-parachlorophenolperoxyl radical (ClPP
) and impeding the generation of 4-chlorocatechol. In addition, the reaction of oxygen with (Cl)PP radical increased the extent of benzene ring cleavage, producing more aliphatic organic acids. This study makes clear the mechanism of Fenton/O
2 system and thus, it is helpful to establish the kinetic model and provide a good guide to the treatment of real wastewater.</description><subject>4-CP</subject><subject>Applied sciences</subject><subject>Carboxylic Acids - chemical synthesis</subject><subject>Catechols - chemical synthesis</subject><subject>Chemical engineering</subject><subject>Chlorophenols - metabolism</subject><subject>Exact sciences and technology</subject><subject>Fenton system</subject><subject>General purification processes</subject><subject>Hydrocarbons, Aromatic - chemical synthesis</subject><subject>Hydrogen Peroxide - chemistry</subject><subject>Iron - chemistry</subject><subject>Mechanism</subject><subject>Nitrogen - chemistry</subject><subject>Oxidation-Reduction</subject><subject>Oxygen</subject><subject>Oxygen - chemistry</subject><subject>Pollution</subject><subject>Reactors</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkU1r3DAQhkVpaTZpf0KLL-3N29G3fSolNE0g0Et6FrI0zmqxra3kLd3--sqsIceFgYF5n_lgXkI-UNhSoOrLfrvf2X-jnbcMQG2XAPaKbGijec05V6_JBjiImjetuCLXOe8BgGop3pIrqhoNnLMNuX_aYZXigFXsq_j39IxTFaZqLlWPz8l6O4c4LeKhdrshpnjY4RSHqjtVdzjNRcunPOP4jrzp7ZDx_ZpvyK-770-39_Xjzx8Pt98eayeknOsemVLcIgjumceOM0Z5rzQAtpa2jHXWSum11k70yktnW9fIDpq2cJQ6fkM-n-ceUvx9xDybMWSHw2AnjMdsVMOlYFpeBFkrNZflU5dA2irNNacFlGfQpZhzwt4cUhhtOhkKZjHF7M1qillMMUsAK30f1wXHbkT_0rW6UIBPK2Czs0Of7ORCfuEaUaaLhft65rA8-E_AZLILODn0IaGbjY_hwin_AXBsq8c</recordid><startdate>20070102</startdate><enddate>20070102</enddate><creator>Du, Yingxun</creator><creator>Zhou, Minghua</creator><creator>Lei, Lecheng</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>7U7</scope><scope>C1K</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>7X8</scope></search><sort><creationdate>20070102</creationdate><title>The role of oxygen in the degradation of p-chlorophenol by Fenton system</title><author>Du, Yingxun ; Zhou, Minghua ; Lei, Lecheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>4-CP</topic><topic>Applied sciences</topic><topic>Carboxylic Acids - chemical synthesis</topic><topic>Catechols - chemical synthesis</topic><topic>Chemical engineering</topic><topic>Chlorophenols - metabolism</topic><topic>Exact sciences and technology</topic><topic>Fenton system</topic><topic>General purification processes</topic><topic>Hydrocarbons, Aromatic - chemical synthesis</topic><topic>Hydrogen Peroxide - chemistry</topic><topic>Iron - chemistry</topic><topic>Mechanism</topic><topic>Nitrogen - chemistry</topic><topic>Oxidation-Reduction</topic><topic>Oxygen</topic><topic>Oxygen - chemistry</topic><topic>Pollution</topic><topic>Reactors</topic><topic>Wastewaters</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Du, Yingxun</creatorcontrib><creatorcontrib>Zhou, Minghua</creatorcontrib><creatorcontrib>Lei, Lecheng</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>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Du, Yingxun</au><au>Zhou, Minghua</au><au>Lei, Lecheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The role of oxygen in the degradation of p-chlorophenol by Fenton system</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2007-01-02</date><risdate>2007</risdate><volume>139</volume><issue>1</issue><spage>108</spage><epage>115</epage><pages>108-115</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>The role of oxygen in the degradation pathway of 4-CP by Fenton system was investigated in this paper. The degradation of 4-CP, changes of Fenton reagent's concentration and formation of the intermediates in Fenton/O
2 system were respectively compared with those in Fenton/N
2 system. The result showed that both 4-CP degradation and COD
cr removal in Fenton/O
2 system were prior to those in Fenton/N
2 system. Investigation into the intermediates suggested that the presence of oxygen impeded the formation of 4-chlorocatechol and accelerated the production of organic acids such as maleic acid, fumaric acid, acetic acid and oxalic acid. Based on the changes of reaction substances and the intermediates, the degradation mechanism of 4-CP by Fenton system in the presence of O
2 was suggested. The dissolved oxygen competed against hydroxyl radical to react with
ortho-parachlorohydroxyphenyl radical (ClHP
) producing
ortho-parachlorophenolperoxyl radical (ClPP
) and impeding the generation of 4-chlorocatechol. In addition, the reaction of oxygen with (Cl)PP radical increased the extent of benzene ring cleavage, producing more aliphatic organic acids. This study makes clear the mechanism of Fenton/O
2 system and thus, it is helpful to establish the kinetic model and provide a good guide to the treatment of real wastewater.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>16870332</pmid><doi>10.1016/j.jhazmat.2006.06.002</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0304-3894 |
| ispartof | Journal of hazardous materials, 2007-01, Vol.139 (1), p.108-115 |
| issn | 0304-3894 1873-3336 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_68354275 |
| source | ScienceDirect Freedom Collection |
| subjects | 4-CP Applied sciences Carboxylic Acids - chemical synthesis Catechols - chemical synthesis Chemical engineering Chlorophenols - metabolism Exact sciences and technology Fenton system General purification processes Hydrocarbons, Aromatic - chemical synthesis Hydrogen Peroxide - chemistry Iron - chemistry Mechanism Nitrogen - chemistry Oxidation-Reduction Oxygen Oxygen - chemistry Pollution Reactors Wastewaters Water treatment and pollution |
| title | The role of oxygen in the degradation of p-chlorophenol by Fenton system |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T12%3A43%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20role%20of%20oxygen%20in%20the%20degradation%20of%20p-chlorophenol%20by%20Fenton%20system&rft.jtitle=Journal%20of%20hazardous%20materials&rft.au=Du,%20Yingxun&rft.date=2007-01-02&rft.volume=139&rft.issue=1&rft.spage=108&rft.epage=115&rft.pages=108-115&rft.issn=0304-3894&rft.eissn=1873-3336&rft.coden=JHMAD9&rft_id=info:doi/10.1016/j.jhazmat.2006.06.002&rft_dat=%3Cproquest_cross%3E68354275%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c455t-fe2663ae043d2deb32213f6700e9a1922baa55d777c4f6d5ca9c85b08921311c3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=19673731&rft_id=info:pmid/16870332&rfr_iscdi=true |