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Comparative study for degradation of industrial dyes by electrochemical advanced oxidation processes with BDD anode in a laboratory stirred tank reactor
Comparative degradation of the industrial dyes Blue BR, Violet SBL and Brown MF 50 mg L−1 has been studied by the electrochemical oxidation (EOx), electro-Fenton (EF), photoelectro-Fenton (PEF) process based on BDD electrode. Each dye was tested in 0.05 mM Na2SO4 with 0.5 mM Fe2+ at pH 3.0, and elec...
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Published in: | Chemosphere (Oxford) 2018-08, Vol.205, p.682-689 |
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description | Comparative degradation of the industrial dyes Blue BR, Violet SBL and Brown MF 50 mg L−1 has been studied by the electrochemical oxidation (EOx), electro-Fenton (EF), photoelectro-Fenton (PEF) process based on BDD electrode. Each dye was tested in 0.05 mM Na2SO4 with 0.5 mM Fe2+ at pH 3.0, and electrolyzed in a stirred tank reactor under galvanostatic conditions with 2.0, 5.0, 7.0, 11.0 and 18.0 mA cm−2. Dyes were oxidized via hydroxyl radicals (OH) formed at the BDD anode from water oxidation coupled with Fenton's reaction cathodically produced hydrogen peroxide (H2O2). Under Na2SO4 medium close to 100% the decolorization was achieved. Through the color abatement rate the dyes behavior was analyzed at the beginning of the oxidation process. Dissolved Organic Carbon (DOC) was tested to evaluate the degradation. From DOC removal, it was established an increasing relative oxidation power of the EOx |
doi_str_mv | 10.1016/j.chemosphere.2018.04.155 |
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[Display omitted]
•Degradation of industrial tannery dyes at pH 3 increases EOx < EF < PEF.•Under Na2SO4 medium close to 100% the decolorization was achieved.•Mineralization of a mixed dye solution >100% by PEF/BDD.•Hydrogen peroxide production in BDD electrode.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2018.04.155</identifier><identifier>PMID: 29729622</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Electrochemical process ; Industrial dyes ; Waste water treatment</subject><ispartof>Chemosphere (Oxford), 2018-08, Vol.205, p.682-689</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright © 2018 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-9dce02bf02bc9a36574c073d2790a55e75979694b75a219e1696774ac5f1591e3</citedby><cites>FETCH-LOGICAL-c377t-9dce02bf02bc9a36574c073d2790a55e75979694b75a219e1696774ac5f1591e3</cites><orcidid>0000-0003-4817-2859</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29729622$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Alcocer, Salvador</creatorcontrib><creatorcontrib>Picos, Alain</creatorcontrib><creatorcontrib>Uribe, Agustín R.</creatorcontrib><creatorcontrib>Pérez, Tzayam</creatorcontrib><creatorcontrib>Peralta-Hernández, Juan M.</creatorcontrib><title>Comparative study for degradation of industrial dyes by electrochemical advanced oxidation processes with BDD anode in a laboratory stirred tank reactor</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>Comparative degradation of the industrial dyes Blue BR, Violet SBL and Brown MF 50 mg L−1 has been studied by the electrochemical oxidation (EOx), electro-Fenton (EF), photoelectro-Fenton (PEF) process based on BDD electrode. Each dye was tested in 0.05 mM Na2SO4 with 0.5 mM Fe2+ at pH 3.0, and electrolyzed in a stirred tank reactor under galvanostatic conditions with 2.0, 5.0, 7.0, 11.0 and 18.0 mA cm−2. Dyes were oxidized via hydroxyl radicals (OH) formed at the BDD anode from water oxidation coupled with Fenton's reaction cathodically produced hydrogen peroxide (H2O2). Under Na2SO4 medium close to 100% the decolorization was achieved. Through the color abatement rate the dyes behavior was analyzed at the beginning of the oxidation process. Dissolved Organic Carbon (DOC) was tested to evaluate the degradation. From DOC removal, it was established an increasing relative oxidation power of the EOx < EF < PEF, according with their decolorization trend. This study highlights the potential of the electrochemical/BDD process for the degradation of industrial dyes found in wastewaters under appropriate experimental conditions.
[Display omitted]
•Degradation of industrial tannery dyes at pH 3 increases EOx < EF < PEF.•Under Na2SO4 medium close to 100% the decolorization was achieved.•Mineralization of a mixed dye solution >100% by PEF/BDD.•Hydrogen peroxide production in BDD electrode.</description><subject>Electrochemical process</subject><subject>Industrial dyes</subject><subject>Waste water treatment</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqNUU1v1DAQtVARXQp_Abm3XhJsJ47Xx3bLl1SJC5wtx56wXpJ4aycL-Sf8XGa124ojh9FIz-_NG88j5JqzkjPevN-VbgtDzPstJCgF4-uS1SWX8gVZ8bXSBRd6fUFWjNWyaGQlL8nrnHeMoVjqV-RSaCV0I8SK_NnEYW-TncIBaJ5mv9AuJurhR7Ie0TjS2NEw-jlPKdie-gUybRcKPbgpxeMiwSFu_cGODjyNv8NZuMdnyBn5v8K0pXf399SO0QOOo5b2to3oG9OCviEllE52_EkTWIfoG_Kys32Gt-d-Rb5__PBt87l4-Prpy-b2oXCVUlOhvQMm2g7LaVs1UtWOqcoLpZmVEpTUSje6bpW0gmvgjW6Uqq2THZeaQ3VFbk5zcdvHGfJkhpAd9L0dIc7ZCFZJUatqXSFVn6guxZwTdGafwmDTYjgzx2DMzvwTjDkGY1htMBjUvjvbzO0A_ln5lAQSNicC4GcPAZLJLsDxoiHhpY2P4T9s_gIwpqhg</recordid><startdate>20180801</startdate><enddate>20180801</enddate><creator>Alcocer, Salvador</creator><creator>Picos, Alain</creator><creator>Uribe, Agustín R.</creator><creator>Pérez, Tzayam</creator><creator>Peralta-Hernández, Juan M.</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4817-2859</orcidid></search><sort><creationdate>20180801</creationdate><title>Comparative study for degradation of industrial dyes by electrochemical advanced oxidation processes with BDD anode in a laboratory stirred tank reactor</title><author>Alcocer, Salvador ; Picos, Alain ; Uribe, Agustín R. ; Pérez, Tzayam ; Peralta-Hernández, Juan M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-9dce02bf02bc9a36574c073d2790a55e75979694b75a219e1696774ac5f1591e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Electrochemical process</topic><topic>Industrial dyes</topic><topic>Waste water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alcocer, Salvador</creatorcontrib><creatorcontrib>Picos, Alain</creatorcontrib><creatorcontrib>Uribe, Agustín R.</creatorcontrib><creatorcontrib>Pérez, Tzayam</creatorcontrib><creatorcontrib>Peralta-Hernández, Juan M.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alcocer, Salvador</au><au>Picos, Alain</au><au>Uribe, Agustín R.</au><au>Pérez, Tzayam</au><au>Peralta-Hernández, Juan M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative study for degradation of industrial dyes by electrochemical advanced oxidation processes with BDD anode in a laboratory stirred tank reactor</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2018-08-01</date><risdate>2018</risdate><volume>205</volume><spage>682</spage><epage>689</epage><pages>682-689</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><abstract>Comparative degradation of the industrial dyes Blue BR, Violet SBL and Brown MF 50 mg L−1 has been studied by the electrochemical oxidation (EOx), electro-Fenton (EF), photoelectro-Fenton (PEF) process based on BDD electrode. Each dye was tested in 0.05 mM Na2SO4 with 0.5 mM Fe2+ at pH 3.0, and electrolyzed in a stirred tank reactor under galvanostatic conditions with 2.0, 5.0, 7.0, 11.0 and 18.0 mA cm−2. Dyes were oxidized via hydroxyl radicals (OH) formed at the BDD anode from water oxidation coupled with Fenton's reaction cathodically produced hydrogen peroxide (H2O2). Under Na2SO4 medium close to 100% the decolorization was achieved. Through the color abatement rate the dyes behavior was analyzed at the beginning of the oxidation process. Dissolved Organic Carbon (DOC) was tested to evaluate the degradation. From DOC removal, it was established an increasing relative oxidation power of the EOx < EF < PEF, according with their decolorization trend. This study highlights the potential of the electrochemical/BDD process for the degradation of industrial dyes found in wastewaters under appropriate experimental conditions.
[Display omitted]
•Degradation of industrial tannery dyes at pH 3 increases EOx < EF < PEF.•Under Na2SO4 medium close to 100% the decolorization was achieved.•Mineralization of a mixed dye solution >100% by PEF/BDD.•Hydrogen peroxide production in BDD electrode.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29729622</pmid><doi>10.1016/j.chemosphere.2018.04.155</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-4817-2859</orcidid></addata></record> |
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subjects | Electrochemical process Industrial dyes Waste water treatment |
title | Comparative study for degradation of industrial dyes by electrochemical advanced oxidation processes with BDD anode in a laboratory stirred tank reactor |
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