Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies
Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed b...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chen, Yan [verfasserIn] Xing, Yaxin [verfasserIn] Zuo, Zhiqiang [verfasserIn] Jiang, Guangming [verfasserIn] Min, Hongping [verfasserIn] Tang, Dingding [verfasserIn] Liang, Peng [verfasserIn] Huang, Xia [verfasserIn] Liu, Yanchen [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: The science of the total environment - Amsterdam [u.a.] : Elsevier Science, 1972, 907 |
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| Übergeordnetes Werk: |
volume:907 |
| DOI / URN: |
10.1016/j.scitotenv.2023.167580 |
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| Katalog-ID: |
ELV065638875 |
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| 245 | 1 | 0 | |a Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies |
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| 520 | |a Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. | ||
| 650 | 4 | |a Biofilm and sediments | |
| 650 | 4 | |a Nitrate | |
| 650 | 4 | |a Sewer system | |
| 650 | 4 | |a Sulfide and methane | |
| 700 | 1 | |a Xing, Yaxin |e verfasserin |4 aut | |
| 700 | 1 | |a Zuo, Zhiqiang |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Guangming |e verfasserin |4 aut | |
| 700 | 1 | |a Min, Hongping |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Dingding |e verfasserin |4 aut | |
| 700 | 1 | |a Liang, Peng |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Xia |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yanchen |e verfasserin |4 aut | |
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10.1016/j.scitotenv.2023.167580 doi (DE-627)ELV065638875 (ELSEVIER)S0048-9697(23)06207-1 DE-627 ger DE-627 rda eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Yan verfasserin aut Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. Biofilm and sediments Nitrate Sewer system Sulfide and methane Xing, Yaxin verfasserin aut Zuo, Zhiqiang verfasserin aut Jiang, Guangming verfasserin aut Min, Hongping verfasserin aut Tang, Dingding verfasserin aut Liang, Peng verfasserin aut Huang, Xia verfasserin aut Liu, Yanchen verfasserin aut Enthalten in The science of the total environment Amsterdam [u.a.] : Elsevier Science, 1972 907 Online-Ressource (DE-627)306591456 (DE-600)1498726-0 (DE-576)081953178 1879-1026 nnns volume:907 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 907 |
| spelling |
10.1016/j.scitotenv.2023.167580 doi (DE-627)ELV065638875 (ELSEVIER)S0048-9697(23)06207-1 DE-627 ger DE-627 rda eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Yan verfasserin aut Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. Biofilm and sediments Nitrate Sewer system Sulfide and methane Xing, Yaxin verfasserin aut Zuo, Zhiqiang verfasserin aut Jiang, Guangming verfasserin aut Min, Hongping verfasserin aut Tang, Dingding verfasserin aut Liang, Peng verfasserin aut Huang, Xia verfasserin aut Liu, Yanchen verfasserin aut Enthalten in The science of the total environment Amsterdam [u.a.] : Elsevier Science, 1972 907 Online-Ressource (DE-627)306591456 (DE-600)1498726-0 (DE-576)081953178 1879-1026 nnns volume:907 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 907 |
| allfields_unstemmed |
10.1016/j.scitotenv.2023.167580 doi (DE-627)ELV065638875 (ELSEVIER)S0048-9697(23)06207-1 DE-627 ger DE-627 rda eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Yan verfasserin aut Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. Biofilm and sediments Nitrate Sewer system Sulfide and methane Xing, Yaxin verfasserin aut Zuo, Zhiqiang verfasserin aut Jiang, Guangming verfasserin aut Min, Hongping verfasserin aut Tang, Dingding verfasserin aut Liang, Peng verfasserin aut Huang, Xia verfasserin aut Liu, Yanchen verfasserin aut Enthalten in The science of the total environment Amsterdam [u.a.] : Elsevier Science, 1972 907 Online-Ressource (DE-627)306591456 (DE-600)1498726-0 (DE-576)081953178 1879-1026 nnns volume:907 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 907 |
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10.1016/j.scitotenv.2023.167580 doi (DE-627)ELV065638875 (ELSEVIER)S0048-9697(23)06207-1 DE-627 ger DE-627 rda eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Yan verfasserin aut Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. Biofilm and sediments Nitrate Sewer system Sulfide and methane Xing, Yaxin verfasserin aut Zuo, Zhiqiang verfasserin aut Jiang, Guangming verfasserin aut Min, Hongping verfasserin aut Tang, Dingding verfasserin aut Liang, Peng verfasserin aut Huang, Xia verfasserin aut Liu, Yanchen verfasserin aut Enthalten in The science of the total environment Amsterdam [u.a.] : Elsevier Science, 1972 907 Online-Ressource (DE-627)306591456 (DE-600)1498726-0 (DE-576)081953178 1879-1026 nnns volume:907 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 907 |
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10.1016/j.scitotenv.2023.167580 doi (DE-627)ELV065638875 (ELSEVIER)S0048-9697(23)06207-1 DE-627 ger DE-627 rda eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Yan verfasserin aut Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. Biofilm and sediments Nitrate Sewer system Sulfide and methane Xing, Yaxin verfasserin aut Zuo, Zhiqiang verfasserin aut Jiang, Guangming verfasserin aut Min, Hongping verfasserin aut Tang, Dingding verfasserin aut Liang, Peng verfasserin aut Huang, Xia verfasserin aut Liu, Yanchen verfasserin aut Enthalten in The science of the total environment Amsterdam [u.a.] : Elsevier Science, 1972 907 Online-Ressource (DE-627)306591456 (DE-600)1498726-0 (DE-576)081953178 1879-1026 nnns volume:907 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 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_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 907 |
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333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies Biofilm and sediments Nitrate Sewer system Sulfide and methane |
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enhanced mechanistic insights and performance optimization: controlling methane and sulfide in sewers using nitrate dosing strategies |
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Enhanced mechanistic insights and performance optimization: Controlling methane and sulfide in sewers using nitrate dosing strategies |
| abstract |
Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. |
| abstractGer |
Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. |
| abstract_unstemmed |
Nitrate has been used for nearly 80 years as a chemical to control problematic gases in the sewer system. However, few studies have explored simultaneous control in biofilm and sediment using different strategies. Here, we introduced a nitrate dosing method involving an initial high shock followed by low level dosing, tested at two distinct frequencies in a lab-scale sewer reactor <110 days. Long-term investigation revealed that the more frequent 20 min interval dosing slightly surpassed the 1 h interval method when applying the same hourly dose of 30 mg N/L (sulfide control: 98.3 ± 1.7 % vs 97.9 ± 1.5 %; methane control: 89.8 ± 4.5 % vs 83.4 ± 6.7 %). 16 s rRNA gene amplicon sequencing revealed biofilm detachment and sediment stratification, which can be attributed to the differing effects of nitrate dosing on biofilm and sedimentary microbial interactions. Dominant bacteria such as Thauera and Thiobacillus performed autotrophic denitrification and nitrate-reducing sulfide-oxidation in conjunction with methane oxidizers. These microbes collaboratively control sulfide and methane emissions from sediment. Our findings suggest that nitrate supports the diversity and versatility of their metabolism in the sewer system. |
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| score |
7.399617 |