Novel synergistic metabolic processes for phenanthrene biodegradation by a nitrate-reducing phenanthrene-degrading culture and an anammox culture
•An anammox culture that can own activity in the presence of PHE is newly discovered.•Anammox can increase anaerobic PHE biodegradation efficiency by ∼1.94 folds.•The inhibitory effects of PHE on anammox cultures were newly discussed.•The nitrite inhibitory effects on PHE-degrading nitrate-reducers...
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| Veröffentlicht in: | Water research (Oxford) 2023-02, Vol.230, p.119593-119593, Article 119593 |
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| creator | Zhang, Zuotao Sun, Jiao Gong, Xiaoqiang Wang, Chongyang Wang, Hui |
| description | •An anammox culture that can own activity in the presence of PHE is newly discovered.•Anammox can increase anaerobic PHE biodegradation efficiency by ∼1.94 folds.•The inhibitory effects of PHE on anammox cultures were newly discussed.•The nitrite inhibitory effects on PHE-degrading nitrate-reducers were newly discussed.•Novel synergistic metabolic processes for PHE biodegradation are discussed.
The synergistic metabolism by anammox cultures and nitrate-reducers for anaerobic PAH biodegradation is largely unknown, including whether anammox culture and which kind of anammox bacterium can perform nitrogen metabolism in the anaerobic PAH biodegradation processes, the inhibitory effect of PAH on anammox activity and nitrite on PAH-degrading nitrate-reducers activity, and the synergistic metabolic processes. Herein, an anammox culture that can eliminate nitrite accumulation and decrease inorganic carbon emission during anaerobic phenanthrene (a model of PAH in this study) biodegradation, the synergistic mechanism for phenanthrene biodegradation by a nitrate-reducer and such anammox culture, and the inhibition effect of phenanthrene on such anammox culture and nitrite on a phenanthrene-degrading nitrate-reducer were newly discussed. The results showed that nitrite largely accumulated during anaerobic phenanthrene biodegradation (nitrate accumulation is a common phenomenon for the biodegradation of refractory matter, including PAHs, by nitrate-reducers) by a nitrate-reducer, PheN2, which mineralizes phenanthrene to inorganic carbon, and nitrite was verified as an inhibiting factor for further biodegradation. Anaerobic phenanthrene biodegradation rates and nitrite concentrations (0–7 mM) appeared to have a negative linear correlation. The anammox culture that mainly contained Candidatus Kuenenia was newly found to efficiently reduce nitrite accumulation and inorganic carbon emissions and significantly promote biodegradation efficiency by ∼1.94-fold. Our results showed that phenanthrene absorbed in and on anammox cells had a more direct relationship with the inhibitory effect on anammox activity than phenanthrene in the environment, and 15.2 mg/gVSS phenanthrene absorbed in and on the cells (4 mM concentration in the culture) showed nearly complete inhibition of anammox culture in this study. In addition, few (less than 2% abundance) anammox bacteria were found to be enough for the removal of nitrite produced from anaerobic phenanthrene biodegradation. In an ideal w |
| doi_str_mv | 10.1016/j.watres.2023.119593 |
| format | Article |
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The synergistic metabolism by anammox cultures and nitrate-reducers for anaerobic PAH biodegradation is largely unknown, including whether anammox culture and which kind of anammox bacterium can perform nitrogen metabolism in the anaerobic PAH biodegradation processes, the inhibitory effect of PAH on anammox activity and nitrite on PAH-degrading nitrate-reducers activity, and the synergistic metabolic processes. Herein, an anammox culture that can eliminate nitrite accumulation and decrease inorganic carbon emission during anaerobic phenanthrene (a model of PAH in this study) biodegradation, the synergistic mechanism for phenanthrene biodegradation by a nitrate-reducer and such anammox culture, and the inhibition effect of phenanthrene on such anammox culture and nitrite on a phenanthrene-degrading nitrate-reducer were newly discussed. The results showed that nitrite largely accumulated during anaerobic phenanthrene biodegradation (nitrate accumulation is a common phenomenon for the biodegradation of refractory matter, including PAHs, by nitrate-reducers) by a nitrate-reducer, PheN2, which mineralizes phenanthrene to inorganic carbon, and nitrite was verified as an inhibiting factor for further biodegradation. Anaerobic phenanthrene biodegradation rates and nitrite concentrations (0–7 mM) appeared to have a negative linear correlation. The anammox culture that mainly contained Candidatus Kuenenia was newly found to efficiently reduce nitrite accumulation and inorganic carbon emissions and significantly promote biodegradation efficiency by ∼1.94-fold. Our results showed that phenanthrene absorbed in and on anammox cells had a more direct relationship with the inhibitory effect on anammox activity than phenanthrene in the environment, and 15.2 mg/gVSS phenanthrene absorbed in and on the cells (4 mM concentration in the culture) showed nearly complete inhibition of anammox culture in this study. In addition, few (less than 2% abundance) anammox bacteria were found to be enough for the removal of nitrite produced from anaerobic phenanthrene biodegradation. In an ideal world, co-pollutants of ammonia, nitrate, phenanthrene, and nitrite could be converted to nitrogen gas and biomass by the synergistic metabolism of anammox cultures and nitrate reducers. Our study reveals a new synergistic process that may exist in our environments for PAH elimination by an anammox culture and a nitrate-reducer, which provides a new strategy for the bioremediation of PAH-polluted anoxic zones.
[Display omitted]</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2023.119593</identifier><identifier>PMID: 36642028</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Anaerobic Ammonia Oxidation ; Anaerobic phenanthrene biodegradation ; Anaerobiosis ; Anammox culture ; Bacteria - metabolism ; Biodegradation, Environmental ; Bioreactors - microbiology ; Inhibitory effect ; Inorganic carbon emission ; Nitrates - metabolism ; Nitrite accumulation ; Nitrites - metabolism ; Nitrogen - metabolism ; Oxidation-Reduction ; Phenanthrenes ; Synergistic metabolic mechanism</subject><ispartof>Water research (Oxford), 2023-02, Vol.230, p.119593-119593, Article 119593</ispartof><rights>2023</rights><rights>Copyright © 2023. Published by Elsevier Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c292t-7b31352a9c51814fcc18a73c279508197a51c41c3b1a6300a1b273581c972c743</citedby><cites>FETCH-LOGICAL-c292t-7b31352a9c51814fcc18a73c279508197a51c41c3b1a6300a1b273581c972c743</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.2023.119593$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36642028$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Zuotao</creatorcontrib><creatorcontrib>Sun, Jiao</creatorcontrib><creatorcontrib>Gong, Xiaoqiang</creatorcontrib><creatorcontrib>Wang, Chongyang</creatorcontrib><creatorcontrib>Wang, Hui</creatorcontrib><title>Novel synergistic metabolic processes for phenanthrene biodegradation by a nitrate-reducing phenanthrene-degrading culture and an anammox culture</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>•An anammox culture that can own activity in the presence of PHE is newly discovered.•Anammox can increase anaerobic PHE biodegradation efficiency by ∼1.94 folds.•The inhibitory effects of PHE on anammox cultures were newly discussed.•The nitrite inhibitory effects on PHE-degrading nitrate-reducers were newly discussed.•Novel synergistic metabolic processes for PHE biodegradation are discussed.
The synergistic metabolism by anammox cultures and nitrate-reducers for anaerobic PAH biodegradation is largely unknown, including whether anammox culture and which kind of anammox bacterium can perform nitrogen metabolism in the anaerobic PAH biodegradation processes, the inhibitory effect of PAH on anammox activity and nitrite on PAH-degrading nitrate-reducers activity, and the synergistic metabolic processes. Herein, an anammox culture that can eliminate nitrite accumulation and decrease inorganic carbon emission during anaerobic phenanthrene (a model of PAH in this study) biodegradation, the synergistic mechanism for phenanthrene biodegradation by a nitrate-reducer and such anammox culture, and the inhibition effect of phenanthrene on such anammox culture and nitrite on a phenanthrene-degrading nitrate-reducer were newly discussed. The results showed that nitrite largely accumulated during anaerobic phenanthrene biodegradation (nitrate accumulation is a common phenomenon for the biodegradation of refractory matter, including PAHs, by nitrate-reducers) by a nitrate-reducer, PheN2, which mineralizes phenanthrene to inorganic carbon, and nitrite was verified as an inhibiting factor for further biodegradation. Anaerobic phenanthrene biodegradation rates and nitrite concentrations (0–7 mM) appeared to have a negative linear correlation. The anammox culture that mainly contained Candidatus Kuenenia was newly found to efficiently reduce nitrite accumulation and inorganic carbon emissions and significantly promote biodegradation efficiency by ∼1.94-fold. Our results showed that phenanthrene absorbed in and on anammox cells had a more direct relationship with the inhibitory effect on anammox activity than phenanthrene in the environment, and 15.2 mg/gVSS phenanthrene absorbed in and on the cells (4 mM concentration in the culture) showed nearly complete inhibition of anammox culture in this study. In addition, few (less than 2% abundance) anammox bacteria were found to be enough for the removal of nitrite produced from anaerobic phenanthrene biodegradation. In an ideal world, co-pollutants of ammonia, nitrate, phenanthrene, and nitrite could be converted to nitrogen gas and biomass by the synergistic metabolism of anammox cultures and nitrate reducers. Our study reveals a new synergistic process that may exist in our environments for PAH elimination by an anammox culture and a nitrate-reducer, which provides a new strategy for the bioremediation of PAH-polluted anoxic zones.
[Display omitted]</description><subject>Anaerobic Ammonia Oxidation</subject><subject>Anaerobic phenanthrene biodegradation</subject><subject>Anaerobiosis</subject><subject>Anammox culture</subject><subject>Bacteria - metabolism</subject><subject>Biodegradation, Environmental</subject><subject>Bioreactors - microbiology</subject><subject>Inhibitory effect</subject><subject>Inorganic carbon emission</subject><subject>Nitrates - metabolism</subject><subject>Nitrite accumulation</subject><subject>Nitrites - metabolism</subject><subject>Nitrogen - metabolism</subject><subject>Oxidation-Reduction</subject><subject>Phenanthrenes</subject><subject>Synergistic metabolic mechanism</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kd2KFDEQhYMo7uzqG4jk0pse89edzo0gi3-w6I1eh3R1zWyG7mRM0uvOY_jGZuhdwRuhQoXiOylODiGvONtyxru3h-0vVxLmrWBCbjk3rZFPyIb32jRCqf4p2TCmZMNlqy7IZc4HxpgQ0jwnF7LrVJX1G_L7a7zDieZTwLT3uXigMxY3xKnejikC5oyZ7mKix1sMLpTbhAHp4OOI--RGV3wMdDhRR4MvyRVsEo4L-LD_R9Gs-HkMy1SWhNSFsZ5abp7j_eP4BXm2c1PGlw_9ivz4-OH79efm5tunL9fvbxoQRpRGD7I6E85Ay3uudgC8d1qC0KZlPTfatRwUBzlw10nGHB-Elm3PwWgBWskr8mZ9t7r8uWAudvYZcJpcwLhkK3TXsa7jwlRUrSikmHPCnT0mP7t0spzZcxj2YNcw7DkMu4ZRZa8fNizDjONf0ePvV-DdCmD1eecx2QweA-DoE0KxY_T_3_AH5q2fxA</recordid><startdate>20230215</startdate><enddate>20230215</enddate><creator>Zhang, Zuotao</creator><creator>Sun, Jiao</creator><creator>Gong, Xiaoqiang</creator><creator>Wang, Chongyang</creator><creator>Wang, Hui</creator><general>Elsevier Ltd</general><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></search><sort><creationdate>20230215</creationdate><title>Novel synergistic metabolic processes for phenanthrene biodegradation by a nitrate-reducing phenanthrene-degrading culture and an anammox culture</title><author>Zhang, Zuotao ; Sun, Jiao ; Gong, Xiaoqiang ; Wang, Chongyang ; Wang, Hui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c292t-7b31352a9c51814fcc18a73c279508197a51c41c3b1a6300a1b273581c972c743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Anaerobic Ammonia Oxidation</topic><topic>Anaerobic phenanthrene biodegradation</topic><topic>Anaerobiosis</topic><topic>Anammox culture</topic><topic>Bacteria - metabolism</topic><topic>Biodegradation, Environmental</topic><topic>Bioreactors - microbiology</topic><topic>Inhibitory effect</topic><topic>Inorganic carbon emission</topic><topic>Nitrates - metabolism</topic><topic>Nitrite accumulation</topic><topic>Nitrites - metabolism</topic><topic>Nitrogen - metabolism</topic><topic>Oxidation-Reduction</topic><topic>Phenanthrenes</topic><topic>Synergistic metabolic mechanism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Zuotao</creatorcontrib><creatorcontrib>Sun, Jiao</creatorcontrib><creatorcontrib>Gong, Xiaoqiang</creatorcontrib><creatorcontrib>Wang, Chongyang</creatorcontrib><creatorcontrib>Wang, Hui</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Zuotao</au><au>Sun, Jiao</au><au>Gong, Xiaoqiang</au><au>Wang, Chongyang</au><au>Wang, Hui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Novel synergistic metabolic processes for phenanthrene biodegradation by a nitrate-reducing phenanthrene-degrading culture and an anammox culture</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2023-02-15</date><risdate>2023</risdate><volume>230</volume><spage>119593</spage><epage>119593</epage><pages>119593-119593</pages><artnum>119593</artnum><issn>0043-1354</issn><eissn>1879-2448</eissn><abstract>•An anammox culture that can own activity in the presence of PHE is newly discovered.•Anammox can increase anaerobic PHE biodegradation efficiency by ∼1.94 folds.•The inhibitory effects of PHE on anammox cultures were newly discussed.•The nitrite inhibitory effects on PHE-degrading nitrate-reducers were newly discussed.•Novel synergistic metabolic processes for PHE biodegradation are discussed.
The synergistic metabolism by anammox cultures and nitrate-reducers for anaerobic PAH biodegradation is largely unknown, including whether anammox culture and which kind of anammox bacterium can perform nitrogen metabolism in the anaerobic PAH biodegradation processes, the inhibitory effect of PAH on anammox activity and nitrite on PAH-degrading nitrate-reducers activity, and the synergistic metabolic processes. Herein, an anammox culture that can eliminate nitrite accumulation and decrease inorganic carbon emission during anaerobic phenanthrene (a model of PAH in this study) biodegradation, the synergistic mechanism for phenanthrene biodegradation by a nitrate-reducer and such anammox culture, and the inhibition effect of phenanthrene on such anammox culture and nitrite on a phenanthrene-degrading nitrate-reducer were newly discussed. The results showed that nitrite largely accumulated during anaerobic phenanthrene biodegradation (nitrate accumulation is a common phenomenon for the biodegradation of refractory matter, including PAHs, by nitrate-reducers) by a nitrate-reducer, PheN2, which mineralizes phenanthrene to inorganic carbon, and nitrite was verified as an inhibiting factor for further biodegradation. Anaerobic phenanthrene biodegradation rates and nitrite concentrations (0–7 mM) appeared to have a negative linear correlation. The anammox culture that mainly contained Candidatus Kuenenia was newly found to efficiently reduce nitrite accumulation and inorganic carbon emissions and significantly promote biodegradation efficiency by ∼1.94-fold. Our results showed that phenanthrene absorbed in and on anammox cells had a more direct relationship with the inhibitory effect on anammox activity than phenanthrene in the environment, and 15.2 mg/gVSS phenanthrene absorbed in and on the cells (4 mM concentration in the culture) showed nearly complete inhibition of anammox culture in this study. In addition, few (less than 2% abundance) anammox bacteria were found to be enough for the removal of nitrite produced from anaerobic phenanthrene biodegradation. In an ideal world, co-pollutants of ammonia, nitrate, phenanthrene, and nitrite could be converted to nitrogen gas and biomass by the synergistic metabolism of anammox cultures and nitrate reducers. Our study reveals a new synergistic process that may exist in our environments for PAH elimination by an anammox culture and a nitrate-reducer, which provides a new strategy for the bioremediation of PAH-polluted anoxic zones.
[Display omitted]</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>36642028</pmid><doi>10.1016/j.watres.2023.119593</doi><tpages>1</tpages></addata></record> |
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| ispartof | Water research (Oxford), 2023-02, Vol.230, p.119593-119593, Article 119593 |
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| subjects | Anaerobic Ammonia Oxidation Anaerobic phenanthrene biodegradation Anaerobiosis Anammox culture Bacteria - metabolism Biodegradation, Environmental Bioreactors - microbiology Inhibitory effect Inorganic carbon emission Nitrates - metabolism Nitrite accumulation Nitrites - metabolism Nitrogen - metabolism Oxidation-Reduction Phenanthrenes Synergistic metabolic mechanism |
| title | Novel synergistic metabolic processes for phenanthrene biodegradation by a nitrate-reducing phenanthrene-degrading culture and an anammox culture |
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