Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain,
Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Stra...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chen, Zhao [verfasserIn] Jiang, Yuli [verfasserIn] Chang, Zhiqiang [verfasserIn] Wang, Jiajia [verfasserIn] Song, Xiefa [verfasserIn] Huang, Zhitao [verfasserIn] Chen, Shibo [verfasserIn] Li, Jian [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of bioscience and bioengineering - Amsterdam [u.a.] : Elsevier Science, 1999, 129, Seite 715-722 |
|---|---|
| Übergeordnetes Werk: |
volume:129 ; pages:715-722 |
| DOI / URN: |
10.1016/j.jbiosc.2019.12.011 |
|---|
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ELV003998045 |
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| 520 | |a Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. | ||
| 650 | 4 | |a Aerobic denitrification | |
| 650 | 4 | |a Anaerobic denitrification | |
| 650 | 4 | |a Nitrogen removal | |
| 650 | 4 | |a Denitrification mechanism | |
| 700 | 1 | |a Jiang, Yuli |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, Zhiqiang |e verfasserin |4 aut | |
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| 700 | 1 | |a Song, Xiefa |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Zhitao |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shibo |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jian |e verfasserin |4 aut | |
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10.1016/j.jbiosc.2019.12.011 doi (DE-627)ELV003998045 (ELSEVIER)S1389-1723(19)30776-5 DE-627 ger DE-627 rda eng 570 540 660 DE-600 BIODIV DE-30 fid 42.00 bkl 58.30 bkl Chen, Zhao verfasserin aut Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. Aerobic denitrification Anaerobic denitrification Nitrogen removal Denitrification mechanism Jiang, Yuli verfasserin aut Chang, Zhiqiang verfasserin aut Wang, Jiajia verfasserin aut Song, Xiefa verfasserin aut Huang, Zhitao verfasserin aut Chen, Shibo verfasserin aut Li, Jian verfasserin aut Enthalten in Journal of bioscience and bioengineering Amsterdam [u.a.] : Elsevier Science, 1999 129, Seite 715-722 Online-Ressource (DE-627)320570517 (DE-600)2016440-3 (DE-576)109967224 1347-4421 nnns volume:129 pages:715-722 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines 58.30 Biotechnologie AR 129 715-722 |
| spelling |
10.1016/j.jbiosc.2019.12.011 doi (DE-627)ELV003998045 (ELSEVIER)S1389-1723(19)30776-5 DE-627 ger DE-627 rda eng 570 540 660 DE-600 BIODIV DE-30 fid 42.00 bkl 58.30 bkl Chen, Zhao verfasserin aut Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. Aerobic denitrification Anaerobic denitrification Nitrogen removal Denitrification mechanism Jiang, Yuli verfasserin aut Chang, Zhiqiang verfasserin aut Wang, Jiajia verfasserin aut Song, Xiefa verfasserin aut Huang, Zhitao verfasserin aut Chen, Shibo verfasserin aut Li, Jian verfasserin aut Enthalten in Journal of bioscience and bioengineering Amsterdam [u.a.] : Elsevier Science, 1999 129, Seite 715-722 Online-Ressource (DE-627)320570517 (DE-600)2016440-3 (DE-576)109967224 1347-4421 nnns volume:129 pages:715-722 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines 58.30 Biotechnologie AR 129 715-722 |
| allfields_unstemmed |
10.1016/j.jbiosc.2019.12.011 doi (DE-627)ELV003998045 (ELSEVIER)S1389-1723(19)30776-5 DE-627 ger DE-627 rda eng 570 540 660 DE-600 BIODIV DE-30 fid 42.00 bkl 58.30 bkl Chen, Zhao verfasserin aut Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. Aerobic denitrification Anaerobic denitrification Nitrogen removal Denitrification mechanism Jiang, Yuli verfasserin aut Chang, Zhiqiang verfasserin aut Wang, Jiajia verfasserin aut Song, Xiefa verfasserin aut Huang, Zhitao verfasserin aut Chen, Shibo verfasserin aut Li, Jian verfasserin aut Enthalten in Journal of bioscience and bioengineering Amsterdam [u.a.] : Elsevier Science, 1999 129, Seite 715-722 Online-Ressource (DE-627)320570517 (DE-600)2016440-3 (DE-576)109967224 1347-4421 nnns volume:129 pages:715-722 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines 58.30 Biotechnologie AR 129 715-722 |
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10.1016/j.jbiosc.2019.12.011 doi (DE-627)ELV003998045 (ELSEVIER)S1389-1723(19)30776-5 DE-627 ger DE-627 rda eng 570 540 660 DE-600 BIODIV DE-30 fid 42.00 bkl 58.30 bkl Chen, Zhao verfasserin aut Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. Aerobic denitrification Anaerobic denitrification Nitrogen removal Denitrification mechanism Jiang, Yuli verfasserin aut Chang, Zhiqiang verfasserin aut Wang, Jiajia verfasserin aut Song, Xiefa verfasserin aut Huang, Zhitao verfasserin aut Chen, Shibo verfasserin aut Li, Jian verfasserin aut Enthalten in Journal of bioscience and bioengineering Amsterdam [u.a.] : Elsevier Science, 1999 129, Seite 715-722 Online-Ressource (DE-627)320570517 (DE-600)2016440-3 (DE-576)109967224 1347-4421 nnns volume:129 pages:715-722 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines 58.30 Biotechnologie AR 129 715-722 |
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10.1016/j.jbiosc.2019.12.011 doi (DE-627)ELV003998045 (ELSEVIER)S1389-1723(19)30776-5 DE-627 ger DE-627 rda eng 570 540 660 DE-600 BIODIV DE-30 fid 42.00 bkl 58.30 bkl Chen, Zhao verfasserin aut Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. Aerobic denitrification Anaerobic denitrification Nitrogen removal Denitrification mechanism Jiang, Yuli verfasserin aut Chang, Zhiqiang verfasserin aut Wang, Jiajia verfasserin aut Song, Xiefa verfasserin aut Huang, Zhitao verfasserin aut Chen, Shibo verfasserin aut Li, Jian verfasserin aut Enthalten in Journal of bioscience and bioengineering Amsterdam [u.a.] : Elsevier Science, 1999 129, Seite 715-722 Online-Ressource (DE-627)320570517 (DE-600)2016440-3 (DE-576)109967224 1347-4421 nnns volume:129 pages:715-722 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines 58.30 Biotechnologie AR 129 715-722 |
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Chen, Zhao @@aut@@ Jiang, Yuli @@aut@@ Chang, Zhiqiang @@aut@@ Wang, Jiajia @@aut@@ Song, Xiefa @@aut@@ Huang, Zhitao @@aut@@ Chen, Shibo @@aut@@ Li, Jian @@aut@@ |
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denitrification characteristics and pathways of a facultative anaerobic denitrifying strain |
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Denitrification characteristics and pathways of a facultative anaerobic denitrifying strain, |
| abstract |
Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. |
| abstractGer |
Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. |
| abstract_unstemmed |
Excessive nitrate in aquaculture systems has attracted wide attention. To isolate novel aerobic denitrifying strain and characterize its nitrogen removal processes, a facultative anaerobic denitrification bacterium, identified as Pseudomonas denitrificans G1, was isolated from marine sediments. Strain G1 could grow and remove 90–98% of nitrate and 97–99% of nitrite under an aerobic or anaerobic condition in 24 h, with the total nitrogen removal rate of 33–38% (87–100 mg/L). The highest denitrification rate could reach 15.1 mg/(L·h). The suitable condition for the denitrification of G1 is C/N ratio 5–22, dissolved oxygen 0–4.68 mg/L, salinity 0–30 g NaCl/L, pH 7–9.5. Under the aerobic condition, G1 grew fast; however, the mass spectrographic analysis showed that the gas product was N2O. Under the anaerobic conditions, G1 grow relatively slowly, but could also achieve effective denitrification and the final product was N2. In denitrification of aquaculture wastewater, strain G1 can remove 60.57% of nitrate and 36.36% of total nitrogen; meanwhile, there was a slight accumulation of ammonia nitrogen. P. denitrificans strain G1 has potential in denitrification processes for the treatment of aquaculture wastewater. However, the regulation of reaction conditions and gas products needs to be further studied. |
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| score |
7.3983936 |