Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using Ti/RuO2-IrO2 electrodes
Background Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control. This work investigated the feasibility of electrochemical treatment using a Ti/RuO2–IrO2 anode as an advanced treatment of coking wastewater. The...
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| Veröffentlicht in: | Journal of chemical technology and biotechnology (1986) 2013-08, Vol.88 (8), p.1568-1575 |
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| container_title | Journal of chemical technology and biotechnology (1986) |
| container_volume | 88 |
| creator | He, Xuwen Chai, Zhen Li, Fuping Zhang, Chunhui Li, Dong Li, Jing Hu, Jianlong |
| description | Background
Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control. This work investigated the feasibility of electrochemical treatment using a Ti/RuO2–IrO2 anode as an advanced treatment of coking wastewater. The influential operating factors including current density (9.6–108.2 mA cm−2) and electrode gap (0.5–2.5 cm) were evaluated.
Results
The current density and electrodes gap had significant effects on COD and NH4+‐N removal and the energy consumption. The degradation of COD and NH4+‐N followed pseudo‐first‐order kinetics. In most experiments, high levels of NH4+‐N removal (NH4+‐N removal ratio > 95%) was achieved along with moderate mineralization (COD removal ratio: 60–80%). COD (178.0–285.0 mg L‐1) and NH4+‐N (55.0–76.0 mg L‐1) were degraded by 62% and 96%, respectively, at the optimum conditions (electrode gap: 0.5 cm, current density: 15.6 mA cm−2) after 60 min treatment. Under this optimal condition, the corresponding energy consumption was 8.60 kWh m‐3 for effluent meeting the discharge standards. Furthermore, gas chromatography–mass spectrometry (GC‐MS) analysis indicated that this technique could be employed to eliminate bio‐refractory and toxic compounds such as phenanthrene, indole, quinoline and pyrimidine in coking wastewater.
Conclusion
Ti/RuO2–IrO2 anode systems were confirmed to be effective in advanced treatment of biologically pretreated coking wastewater. © 2012 Society of Chemical Industry |
| doi_str_mv | 10.1002/jctb.4006 |
| format | Article |
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Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control. This work investigated the feasibility of electrochemical treatment using a Ti/RuO2–IrO2 anode as an advanced treatment of coking wastewater. The influential operating factors including current density (9.6–108.2 mA cm−2) and electrode gap (0.5–2.5 cm) were evaluated.
Results
The current density and electrodes gap had significant effects on COD and NH4+‐N removal and the energy consumption. The degradation of COD and NH4+‐N followed pseudo‐first‐order kinetics. In most experiments, high levels of NH4+‐N removal (NH4+‐N removal ratio > 95%) was achieved along with moderate mineralization (COD removal ratio: 60–80%). COD (178.0–285.0 mg L‐1) and NH4+‐N (55.0–76.0 mg L‐1) were degraded by 62% and 96%, respectively, at the optimum conditions (electrode gap: 0.5 cm, current density: 15.6 mA cm−2) after 60 min treatment. Under this optimal condition, the corresponding energy consumption was 8.60 kWh m‐3 for effluent meeting the discharge standards. Furthermore, gas chromatography–mass spectrometry (GC‐MS) analysis indicated that this technique could be employed to eliminate bio‐refractory and toxic compounds such as phenanthrene, indole, quinoline and pyrimidine in coking wastewater.
Conclusion
Ti/RuO2–IrO2 anode systems were confirmed to be effective in advanced treatment of biologically pretreated coking wastewater. © 2012 Society of Chemical Industry</description><identifier>ISSN: 0268-2575</identifier><identifier>EISSN: 1097-4660</identifier><identifier>DOI: 10.1002/jctb.4006</identifier><identifier>CODEN: JCTBDC</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Applied sciences ; Chemical engineering ; COD and NH4+-N ; coking wastewater ; electrochemical oxidation ; energy consumption ; Exact sciences and technology ; General purification processes ; Pollution ; Reactors ; Ti/RuO2-IrO2 electrodes ; Wastewaters ; Water treatment and pollution</subject><ispartof>Journal of chemical technology and biotechnology (1986), 2013-08, Vol.88 (8), p.1568-1575</ispartof><rights>2012 Society of Chemical Industry</rights><rights>2014 INIST-CNRS</rights><rights>2013 Society of Chemical Industry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></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.4006$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjctb.4006$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27520060$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>He, Xuwen</creatorcontrib><creatorcontrib>Chai, Zhen</creatorcontrib><creatorcontrib>Li, Fuping</creatorcontrib><creatorcontrib>Zhang, Chunhui</creatorcontrib><creatorcontrib>Li, Dong</creatorcontrib><creatorcontrib>Li, Jing</creatorcontrib><creatorcontrib>Hu, Jianlong</creatorcontrib><title>Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using Ti/RuO2-IrO2 electrodes</title><title>Journal of chemical technology and biotechnology (1986)</title><addtitle>J. Chem. Technol. Biotechnol</addtitle><description>Background
Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control. This work investigated the feasibility of electrochemical treatment using a Ti/RuO2–IrO2 anode as an advanced treatment of coking wastewater. The influential operating factors including current density (9.6–108.2 mA cm−2) and electrode gap (0.5–2.5 cm) were evaluated.
Results
The current density and electrodes gap had significant effects on COD and NH4+‐N removal and the energy consumption. The degradation of COD and NH4+‐N followed pseudo‐first‐order kinetics. In most experiments, high levels of NH4+‐N removal (NH4+‐N removal ratio > 95%) was achieved along with moderate mineralization (COD removal ratio: 60–80%). COD (178.0–285.0 mg L‐1) and NH4+‐N (55.0–76.0 mg L‐1) were degraded by 62% and 96%, respectively, at the optimum conditions (electrode gap: 0.5 cm, current density: 15.6 mA cm−2) after 60 min treatment. Under this optimal condition, the corresponding energy consumption was 8.60 kWh m‐3 for effluent meeting the discharge standards. Furthermore, gas chromatography–mass spectrometry (GC‐MS) analysis indicated that this technique could be employed to eliminate bio‐refractory and toxic compounds such as phenanthrene, indole, quinoline and pyrimidine in coking wastewater.
Conclusion
Ti/RuO2–IrO2 anode systems were confirmed to be effective in advanced treatment of biologically pretreated coking wastewater. © 2012 Society of Chemical Industry</description><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>COD and NH4+-N</subject><subject>coking wastewater</subject><subject>electrochemical oxidation</subject><subject>energy consumption</subject><subject>Exact sciences and technology</subject><subject>General purification processes</subject><subject>Pollution</subject><subject>Reactors</subject><subject>Ti/RuO2-IrO2 electrodes</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><issn>0268-2575</issn><issn>1097-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNo9kNFO2zAUhq1pSOtgF7yBpWmXoY4T2_ElVIOBCpVQGZeWY590Lmnc2elKeXqctfTKRz7fb-v_EDrPyUVOCB0vTV9flITwT2iUEymyknPyGY0I5VVGmWBf0NcYlyQRFeUj9HZp_-nOgMV9AN2voOuxb3DtfOsXzui23eF1gP_LBBn_4roF3urYwzbdBFzvMLRg-uDNH1gNCexfndW98x3exIGeu_HjZkaz2zCjH7CFeIZOGt1G-HY4T9HT9c_55Fc2nd3cTi6n2aKgFc-0tFTUjBoLzFjRgIYiFbSysQ3QSjAjRckqWaZGabAssQB1LgvbmErq4hR937-7Dv7vBmKvln4TuvSlygXnVcE4o4n6caB0TCWakKy4qNbBrXTYKSoYTc5I4sZ7buta2B33OVGDfzX4V4N_dTeZXw1DSmT7hEvSXo8JHV4UF4Vg6vnhRrH7kvyeXkkli3cdFots</recordid><startdate>201308</startdate><enddate>201308</enddate><creator>He, Xuwen</creator><creator>Chai, Zhen</creator><creator>Li, Fuping</creator><creator>Zhang, Chunhui</creator><creator>Li, Dong</creator><creator>Li, Jing</creator><creator>Hu, Jianlong</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</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>201308</creationdate><title>Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using Ti/RuO2-IrO2 electrodes</title><author>He, Xuwen ; Chai, Zhen ; Li, Fuping ; Zhang, Chunhui ; Li, Dong ; Li, Jing ; Hu, Jianlong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g3286-a9d27b52cde5cd7feae3400d9fdfe2875c9745894068745d5b52eeb193dfc89a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>COD and NH4+-N</topic><topic>coking wastewater</topic><topic>electrochemical oxidation</topic><topic>energy consumption</topic><topic>Exact sciences and technology</topic><topic>General purification processes</topic><topic>Pollution</topic><topic>Reactors</topic><topic>Ti/RuO2-IrO2 electrodes</topic><topic>Wastewaters</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, Xuwen</creatorcontrib><creatorcontrib>Chai, Zhen</creatorcontrib><creatorcontrib>Li, Fuping</creatorcontrib><creatorcontrib>Zhang, Chunhui</creatorcontrib><creatorcontrib>Li, Dong</creatorcontrib><creatorcontrib>Li, Jing</creatorcontrib><creatorcontrib>Hu, Jianlong</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</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>He, Xuwen</au><au>Chai, Zhen</au><au>Li, Fuping</au><au>Zhang, Chunhui</au><au>Li, Dong</au><au>Li, Jing</au><au>Hu, Jianlong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using Ti/RuO2-IrO2 electrodes</atitle><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle><addtitle>J. Chem. Technol. Biotechnol</addtitle><date>2013-08</date><risdate>2013</risdate><volume>88</volume><issue>8</issue><spage>1568</spage><epage>1575</epage><pages>1568-1575</pages><issn>0268-2575</issn><eissn>1097-4660</eissn><coden>JCTBDC</coden><abstract>Background
Electrochemical oxidation has attracted wide attention in wastewater treatment because of its strong oxidation performance and ease of control. This work investigated the feasibility of electrochemical treatment using a Ti/RuO2–IrO2 anode as an advanced treatment of coking wastewater. The influential operating factors including current density (9.6–108.2 mA cm−2) and electrode gap (0.5–2.5 cm) were evaluated.
Results
The current density and electrodes gap had significant effects on COD and NH4+‐N removal and the energy consumption. The degradation of COD and NH4+‐N followed pseudo‐first‐order kinetics. In most experiments, high levels of NH4+‐N removal (NH4+‐N removal ratio > 95%) was achieved along with moderate mineralization (COD removal ratio: 60–80%). COD (178.0–285.0 mg L‐1) and NH4+‐N (55.0–76.0 mg L‐1) were degraded by 62% and 96%, respectively, at the optimum conditions (electrode gap: 0.5 cm, current density: 15.6 mA cm−2) after 60 min treatment. Under this optimal condition, the corresponding energy consumption was 8.60 kWh m‐3 for effluent meeting the discharge standards. Furthermore, gas chromatography–mass spectrometry (GC‐MS) analysis indicated that this technique could be employed to eliminate bio‐refractory and toxic compounds such as phenanthrene, indole, quinoline and pyrimidine in coking wastewater.
Conclusion
Ti/RuO2–IrO2 anode systems were confirmed to be effective in advanced treatment of biologically pretreated coking wastewater. © 2012 Society of Chemical Industry</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/jctb.4006</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0268-2575 |
| ispartof | Journal of chemical technology and biotechnology (1986), 2013-08, Vol.88 (8), p.1568-1575 |
| issn | 0268-2575 1097-4660 |
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| source | Wiley Journals |
| subjects | Applied sciences Chemical engineering COD and NH4+-N coking wastewater electrochemical oxidation energy consumption Exact sciences and technology General purification processes Pollution Reactors Ti/RuO2-IrO2 electrodes Wastewaters Water treatment and pollution |
| title | Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using Ti/RuO2-IrO2 electrodes |
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