4-Nitrophenol Biodegradation in a Sequencing Batch Reactor Operating with Aerobic−Anoxic Cycles
The study regards 4-nitrophenol removal performed in a lab-scale sequential batch reactor with an integrated aerobic−anoxic cycle. The purpose of the study was to examine the kinetics of 4-nitrophenol biological oxidation and denitrification in order to test the feasibility of the proposed technolog...
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| Veröffentlicht in: | Environmental science & technology 2005-07, Vol.39 (13), p.5059-5065 |
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| creator | Tomei, M. Concetta Annesini, M. Cristina |
| description | The study regards 4-nitrophenol removal performed in a lab-scale sequential batch reactor with an integrated aerobic−anoxic cycle. The purpose of the study was to examine the kinetics of 4-nitrophenol biological oxidation and denitrification in order to test the feasibility of the proposed technological solution for xenobiotic removal. The results obtained show that high removal efficiency of 4-nitrophenol is easily achieved when the compound is fed into the reactor as the sole carbon source. Residual concentrations of 4-nitrophenol and nitrous/nitric nitrogen in the effluent lower than 1 mg L-1 were observed in the range of applied feed concentration (200−320 mg L-1). Low concentrations of dissolved oxygen (≤2 mg L-1) in the feed and aerobic phases lead to appreciable simultaneous denitrification. As regards the denitrification process, while no carbon-limiting effects were observed at COD/N ratios ≥ 3, a significant decrease in the rate of denitrification is detected for COD/N ratios ≤ 2. The denitrification rate obtained in tests with no external carbon addition proved very low and unsuitable for practical application. A model of the denitrification process taking into account both the limiting effect of nitrogen and carbonaceous substrate has been proposed and applied for experimental data correlation. |
| doi_str_mv | 10.1021/es0483140 |
| format | Article |
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Concetta ; Annesini, M. Cristina</creator><creatorcontrib>Tomei, M. Concetta ; Annesini, M. Cristina</creatorcontrib><description>The study regards 4-nitrophenol removal performed in a lab-scale sequential batch reactor with an integrated aerobic−anoxic cycle. The purpose of the study was to examine the kinetics of 4-nitrophenol biological oxidation and denitrification in order to test the feasibility of the proposed technological solution for xenobiotic removal. The results obtained show that high removal efficiency of 4-nitrophenol is easily achieved when the compound is fed into the reactor as the sole carbon source. Residual concentrations of 4-nitrophenol and nitrous/nitric nitrogen in the effluent lower than 1 mg L-1 were observed in the range of applied feed concentration (200−320 mg L-1). Low concentrations of dissolved oxygen (≤2 mg L-1) in the feed and aerobic phases lead to appreciable simultaneous denitrification. As regards the denitrification process, while no carbon-limiting effects were observed at COD/N ratios ≥ 3, a significant decrease in the rate of denitrification is detected for COD/N ratios ≤ 2. The denitrification rate obtained in tests with no external carbon addition proved very low and unsuitable for practical application. A model of the denitrification process taking into account both the limiting effect of nitrogen and carbonaceous substrate has been proposed and applied for experimental data correlation.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es0483140</identifier><identifier>PMID: 16053111</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Bacteria, Aerobic ; Batch Reactors ; Biodegradation ; Biodegradation, Environmental ; Biological and medical sciences ; Biological treatment of waters ; Bioreactors ; Biotechnology ; Carbon ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; General purification processes ; Industrial applications and implications. Economical aspects ; Kinetics ; Nitrophenols - metabolism ; Oxidation-Reduction ; Pollutants ; Pollution ; Reactors ; Wastewaters ; Water Purification - methods ; Water treatment ; Water treatment and pollution ; Xenobiotics - metabolism</subject><ispartof>Environmental science & technology, 2005-07, Vol.39 (13), p.5059-5065</ispartof><rights>Copyright © 2005 American Chemical Society</rights><rights>2005 INIST-CNRS</rights><rights>Copyright American Chemical Society Jul 1, 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a422t-8fe6dad1f6f7bdc69c50cf429cfadd242d1a6cee717f8e30f2e38bca3a3d28ca3</citedby><cites>FETCH-LOGICAL-a422t-8fe6dad1f6f7bdc69c50cf429cfadd242d1a6cee717f8e30f2e38bca3a3d28ca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es0483140$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es0483140$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16956333$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16053111$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tomei, M. Concetta</creatorcontrib><creatorcontrib>Annesini, M. Cristina</creatorcontrib><title>4-Nitrophenol Biodegradation in a Sequencing Batch Reactor Operating with Aerobic−Anoxic Cycles</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>The study regards 4-nitrophenol removal performed in a lab-scale sequential batch reactor with an integrated aerobic−anoxic cycle. The purpose of the study was to examine the kinetics of 4-nitrophenol biological oxidation and denitrification in order to test the feasibility of the proposed technological solution for xenobiotic removal. The results obtained show that high removal efficiency of 4-nitrophenol is easily achieved when the compound is fed into the reactor as the sole carbon source. Residual concentrations of 4-nitrophenol and nitrous/nitric nitrogen in the effluent lower than 1 mg L-1 were observed in the range of applied feed concentration (200−320 mg L-1). Low concentrations of dissolved oxygen (≤2 mg L-1) in the feed and aerobic phases lead to appreciable simultaneous denitrification. As regards the denitrification process, while no carbon-limiting effects were observed at COD/N ratios ≥ 3, a significant decrease in the rate of denitrification is detected for COD/N ratios ≤ 2. The denitrification rate obtained in tests with no external carbon addition proved very low and unsuitable for practical application. A model of the denitrification process taking into account both the limiting effect of nitrogen and carbonaceous substrate has been proposed and applied for experimental data correlation.</description><subject>Applied sciences</subject><subject>Bacteria, Aerobic</subject><subject>Batch Reactors</subject><subject>Biodegradation</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of waters</subject><subject>Bioreactors</subject><subject>Biotechnology</subject><subject>Carbon</subject><subject>Environment and pollution</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General purification processes</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Kinetics</subject><subject>Nitrophenols - metabolism</subject><subject>Oxidation-Reduction</subject><subject>Pollutants</subject><subject>Pollution</subject><subject>Reactors</subject><subject>Wastewaters</subject><subject>Water Purification - methods</subject><subject>Water treatment</subject><subject>Water treatment and pollution</subject><subject>Xenobiotics - metabolism</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0c1uEzEQAGALgWgIHHgBtEIqEoel_tn1eo9J-AlSRREtCHGxJva4cdmsg70R7Rtw7iP2STBK1FRwwJeRPJ9G80PIU0ZfMcrZESZaKcEqeo-MWM1pWaua3ScjSpkoWyG_HpBHKV1QSrmg6iE5YJLWgjE2IlCVH_wQw3qJfeiKqQ8WzyNYGHzoC98XUJzijw32xvfnxRQGsyw-IZghxOJkjTG7_P_TD8tigjEsvLn5dT3pw6U3xezKdJgekwcOuoRPdnFMPr99czabl8cn797PJsclVJwPpXIoLVjmpGsW1sjW1NS4irfGgbW84paBNIgNa5xCQR1HoRYGBAjLVY5j8mJbdx1DbjgNeuWTwa6DHsMmaU553VDe_heyqqmUYirD53_Bi7CJfR5C5z2ySjaqzujlFpkYUoro9Dr6FcQrzaj-cx19e51sn-0KbhYrtHu5O0cGhzsAyUDnIuS9pzuuraXIb0zKrfNpwMvbPMTvWjaiqfXZx1OtXk_n31o511_2dcGk_RD_NvgbQdGzDA</recordid><startdate>20050701</startdate><enddate>20050701</enddate><creator>Tomei, M. Concetta</creator><creator>Annesini, M. Cristina</creator><general>American Chemical Society</general><scope>BSCLL</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>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7QH</scope><scope>7UA</scope></search><sort><creationdate>20050701</creationdate><title>4-Nitrophenol Biodegradation in a Sequencing Batch Reactor Operating with Aerobic−Anoxic Cycles</title><author>Tomei, M. Concetta ; Annesini, M. Cristina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a422t-8fe6dad1f6f7bdc69c50cf429cfadd242d1a6cee717f8e30f2e38bca3a3d28ca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Bacteria, Aerobic</topic><topic>Batch Reactors</topic><topic>Biodegradation</topic><topic>Biodegradation, Environmental</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of waters</topic><topic>Bioreactors</topic><topic>Biotechnology</topic><topic>Carbon</topic><topic>Environment and pollution</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General purification processes</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Kinetics</topic><topic>Nitrophenols - metabolism</topic><topic>Oxidation-Reduction</topic><topic>Pollutants</topic><topic>Pollution</topic><topic>Reactors</topic><topic>Wastewaters</topic><topic>Water Purification - methods</topic><topic>Water treatment</topic><topic>Water treatment and pollution</topic><topic>Xenobiotics - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tomei, M. Concetta</creatorcontrib><creatorcontrib>Annesini, M. 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Concetta</au><au>Annesini, M. Cristina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>4-Nitrophenol Biodegradation in a Sequencing Batch Reactor Operating with Aerobic−Anoxic Cycles</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2005-07-01</date><risdate>2005</risdate><volume>39</volume><issue>13</issue><spage>5059</spage><epage>5065</epage><pages>5059-5065</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>The study regards 4-nitrophenol removal performed in a lab-scale sequential batch reactor with an integrated aerobic−anoxic cycle. The purpose of the study was to examine the kinetics of 4-nitrophenol biological oxidation and denitrification in order to test the feasibility of the proposed technological solution for xenobiotic removal. The results obtained show that high removal efficiency of 4-nitrophenol is easily achieved when the compound is fed into the reactor as the sole carbon source. Residual concentrations of 4-nitrophenol and nitrous/nitric nitrogen in the effluent lower than 1 mg L-1 were observed in the range of applied feed concentration (200−320 mg L-1). Low concentrations of dissolved oxygen (≤2 mg L-1) in the feed and aerobic phases lead to appreciable simultaneous denitrification. As regards the denitrification process, while no carbon-limiting effects were observed at COD/N ratios ≥ 3, a significant decrease in the rate of denitrification is detected for COD/N ratios ≤ 2. The denitrification rate obtained in tests with no external carbon addition proved very low and unsuitable for practical application. A model of the denitrification process taking into account both the limiting effect of nitrogen and carbonaceous substrate has been proposed and applied for experimental data correlation.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>16053111</pmid><doi>10.1021/es0483140</doi><tpages>7</tpages></addata></record> |
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| subjects | Applied sciences Bacteria, Aerobic Batch Reactors Biodegradation Biodegradation, Environmental Biological and medical sciences Biological treatment of waters Bioreactors Biotechnology Carbon Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology General purification processes Industrial applications and implications. Economical aspects Kinetics Nitrophenols - metabolism Oxidation-Reduction Pollutants Pollution Reactors Wastewaters Water Purification - methods Water treatment Water treatment and pollution Xenobiotics - metabolism |
| title | 4-Nitrophenol Biodegradation in a Sequencing Batch Reactor Operating with Aerobic−Anoxic Cycles |
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