Outcompeting nitrite-oxidizing bacteria in single-stage nitrogen removal in sewage treatment plants: A model-based study
This model-based study investigated the mechanisms and operational window for efficient repression of nitrite oxidizing bacteria (NOB) in an autotrophic nitrogen removal process. The operation of a continuous single-stage granular sludge process was simulated for nitrogen removal from pretreated sew...
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| Veröffentlicht in: | Water research (Oxford) 2014-12, Vol.66, p.208-218 |
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| creator | Pérez, Julio Lotti, Tommaso Kleerebezem, Robbert Picioreanu, Cristian van Loosdrecht, Mark C.M. |
| description | This model-based study investigated the mechanisms and operational window for efficient repression of nitrite oxidizing bacteria (NOB) in an autotrophic nitrogen removal process. The operation of a continuous single-stage granular sludge process was simulated for nitrogen removal from pretreated sewage at 10 °C. The effects of the residual ammonium concentration were explicitly analyzed with the model. Competition for oxygen between ammonia-oxidizing bacteria (AOB) and NOB was found to be essential for NOB repression even when the suppression of nitrite oxidation is assisted by nitrite reduction by anammox (AMX). The nitrite half-saturation coefficient of NOB and AMX proved non-sensitive for the model output. The maximum specific growth rate of AMX bacteria proved a sensitive process parameter, because higher rates would provide a competitive advantage for AMX.
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•Residual ammonium triggers effective nitrite-oxidizing bacteria (NOB) repression.•NOB repression is due to oxygen competition with ammonia-oxidizing bacteria.•KO2,NOB/KO2,AOB ratio was found to be the most critical factor for NOB repression.•Anammox doubling time proved to be a sensitive parameter for NOB repression. |
| doi_str_mv | 10.1016/j.watres.2014.08.028 |
| format | Article |
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[Display omitted]
•Residual ammonium triggers effective nitrite-oxidizing bacteria (NOB) repression.•NOB repression is due to oxygen competition with ammonia-oxidizing bacteria.•KO2,NOB/KO2,AOB ratio was found to be the most critical factor for NOB repression.•Anammox doubling time proved to be a sensitive parameter for NOB repression.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2014.08.028</identifier><identifier>PMID: 25216301</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Anammox ; Applied sciences ; Bacteria ; Bacteria - metabolism ; Biofilm ; Biological and medical sciences ; Biological treatment of waters ; Bioreactors - microbiology ; Biotechnology ; Computer simulation ; Denitrification ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; General purification processes ; Granular sludge ; Industrial applications and implications. Economical aspects ; Mathematical modeling ; Microbial community interactions ; Nitritation ; Nitrites ; Nitrites - metabolism ; Nitrogen - metabolism ; Nitrogen removal ; Oxidation ; Pollution ; Process parameters ; Sewage ; Sewage - microbiology ; Sludge ; Waste Disposal, Fluid - methods ; Wastewaters ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2014-12, Vol.66, p.208-218</ispartof><rights>2014 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2014 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c627t-1a61c861ed60fb99279096fa050721a3eba2e0eef8cda55979501699f18ccef3</citedby><cites>FETCH-LOGICAL-c627t-1a61c861ed60fb99279096fa050721a3eba2e0eef8cda55979501699f18ccef3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.watres.2014.08.028$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28890233$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25216301$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pérez, Julio</creatorcontrib><creatorcontrib>Lotti, Tommaso</creatorcontrib><creatorcontrib>Kleerebezem, Robbert</creatorcontrib><creatorcontrib>Picioreanu, Cristian</creatorcontrib><creatorcontrib>van Loosdrecht, Mark C.M.</creatorcontrib><title>Outcompeting nitrite-oxidizing bacteria in single-stage nitrogen removal in sewage treatment plants: A model-based study</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>This model-based study investigated the mechanisms and operational window for efficient repression of nitrite oxidizing bacteria (NOB) in an autotrophic nitrogen removal process. The operation of a continuous single-stage granular sludge process was simulated for nitrogen removal from pretreated sewage at 10 °C. The effects of the residual ammonium concentration were explicitly analyzed with the model. Competition for oxygen between ammonia-oxidizing bacteria (AOB) and NOB was found to be essential for NOB repression even when the suppression of nitrite oxidation is assisted by nitrite reduction by anammox (AMX). The nitrite half-saturation coefficient of NOB and AMX proved non-sensitive for the model output. The maximum specific growth rate of AMX bacteria proved a sensitive process parameter, because higher rates would provide a competitive advantage for AMX.
[Display omitted]
•Residual ammonium triggers effective nitrite-oxidizing bacteria (NOB) repression.•NOB repression is due to oxygen competition with ammonia-oxidizing bacteria.•KO2,NOB/KO2,AOB ratio was found to be the most critical factor for NOB repression.•Anammox doubling time proved to be a sensitive parameter for NOB repression.</description><subject>Anammox</subject><subject>Applied sciences</subject><subject>Bacteria</subject><subject>Bacteria - metabolism</subject><subject>Biofilm</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of waters</subject><subject>Bioreactors - microbiology</subject><subject>Biotechnology</subject><subject>Computer simulation</subject><subject>Denitrification</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>Granular sludge</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Mathematical modeling</subject><subject>Microbial community interactions</subject><subject>Nitritation</subject><subject>Nitrites</subject><subject>Nitrites - metabolism</subject><subject>Nitrogen - metabolism</subject><subject>Nitrogen removal</subject><subject>Oxidation</subject><subject>Pollution</subject><subject>Process parameters</subject><subject>Sewage</subject><subject>Sewage - microbiology</subject><subject>Sludge</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU1r3DAQhkVpaDZJ_0EpvhR6sTOSZVnqoRBC0wYCueQuZGm8aPHHVpLz0V9fbXbb3sqeBKNnZl7mIeQDhYoCFZeb6smkgLFiQHkFsgIm35AVla0qGefyLVkB8LqkdcNPyVmMGwBgrFbvyClrGBU10BV5vl-SncctJj-ti8mn4BOW87N3_teu0hmbMHhT-KmIuTBgGZNZ4ys6r3EqAo7zoxleAXzafeVUJo04pWI7mCnFL8VVMc4Oh7IzEV0R0-JeLshJb4aI7w_vOXm4-fZw_aO8u_9-e311V1rB2lRSI6iVgqIT0HdKsVaBEr2BBlpGTY2dYQiIvbTONI1qVZOPo1RPpbXY1-fk837sNsw_F4xJjz5aHHIwnJeoqRAALZU1HIHyNl-Ut-pINGeUR6BMqYZLVmeU71Eb5hgD9nob_GjCi6agd871Ru-d651zDVJn57nt42HD0o3o_jb9kZyBTwfARGuGPpjJ-viPk1JBXp-5r3sOs49Hj0FH63Gy6HxAm7Sb_f-T_AaRg8zM</recordid><startdate>20141201</startdate><enddate>20141201</enddate><creator>Pérez, Julio</creator><creator>Lotti, Tommaso</creator><creator>Kleerebezem, Robbert</creator><creator>Picioreanu, Cristian</creator><creator>van Loosdrecht, Mark C.M.</creator><general>Elsevier Ltd</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>7X8</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><scope>7QL</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7SU</scope><scope>KR7</scope></search><sort><creationdate>20141201</creationdate><title>Outcompeting nitrite-oxidizing bacteria in single-stage nitrogen removal in sewage treatment plants: A model-based study</title><author>Pérez, Julio ; Lotti, Tommaso ; Kleerebezem, Robbert ; Picioreanu, Cristian ; van Loosdrecht, Mark C.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c627t-1a61c861ed60fb99279096fa050721a3eba2e0eef8cda55979501699f18ccef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Anammox</topic><topic>Applied sciences</topic><topic>Bacteria</topic><topic>Bacteria - metabolism</topic><topic>Biofilm</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of waters</topic><topic>Bioreactors - microbiology</topic><topic>Biotechnology</topic><topic>Computer simulation</topic><topic>Denitrification</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>Granular sludge</topic><topic>Industrial applications and implications. 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The operation of a continuous single-stage granular sludge process was simulated for nitrogen removal from pretreated sewage at 10 °C. The effects of the residual ammonium concentration were explicitly analyzed with the model. Competition for oxygen between ammonia-oxidizing bacteria (AOB) and NOB was found to be essential for NOB repression even when the suppression of nitrite oxidation is assisted by nitrite reduction by anammox (AMX). The nitrite half-saturation coefficient of NOB and AMX proved non-sensitive for the model output. The maximum specific growth rate of AMX bacteria proved a sensitive process parameter, because higher rates would provide a competitive advantage for AMX.
[Display omitted]
•Residual ammonium triggers effective nitrite-oxidizing bacteria (NOB) repression.•NOB repression is due to oxygen competition with ammonia-oxidizing bacteria.•KO2,NOB/KO2,AOB ratio was found to be the most critical factor for NOB repression.•Anammox doubling time proved to be a sensitive parameter for NOB repression.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>25216301</pmid><doi>10.1016/j.watres.2014.08.028</doi><tpages>11</tpages></addata></record> |
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| ispartof | Water research (Oxford), 2014-12, Vol.66, p.208-218 |
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| subjects | Anammox Applied sciences Bacteria Bacteria - metabolism Biofilm Biological and medical sciences Biological treatment of waters Bioreactors - microbiology Biotechnology Computer simulation Denitrification Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology General purification processes Granular sludge Industrial applications and implications. Economical aspects Mathematical modeling Microbial community interactions Nitritation Nitrites Nitrites - metabolism Nitrogen - metabolism Nitrogen removal Oxidation Pollution Process parameters Sewage Sewage - microbiology Sludge Waste Disposal, Fluid - methods Wastewaters Water treatment and pollution |
| title | Outcompeting nitrite-oxidizing bacteria in single-stage nitrogen removal in sewage treatment plants: A model-based study |
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