Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands

This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyper...
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Autor*in:	Xiaoling Liu [verfasserIn] Jingting Wang [verfasserIn] Xiaoying Fu [verfasserIn] Hongbing Luo [verfasserIn] Bruce C. Anderson [verfasserIn] Ke Zhang [verfasserIn] Mei Li [verfasserIn] Bo Huang [verfasserIn] Liangqian Fan [verfasserIn] Lijuan Yu [verfasserIn] Guozhu He [verfasserIn] Likou Zou [verfasserIn] Shuzhi Fu [verfasserIn] Limei Hu [verfasserIn] Mingshu Jiang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	methane emission integrated vertical-flow constructed wetland ethanol carbon source

Übergeordnetes Werk:	In: Water - MDPI AG, 2010, 11(2019), 5, p 1086
Übergeordnetes Werk:	volume:11 ; year:2019 ; number:5, p 1086

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/w11051086

Katalog-ID:	DOAJ074214608

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allfields	10.3390/w11051086 doi (DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Xiaoling Liu verfasserin aut Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands. methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes Jingting Wang verfasserin aut Xiaoying Fu verfasserin aut Hongbing Luo verfasserin aut Bruce C. Anderson verfasserin aut Ke Zhang verfasserin aut Mei Li verfasserin aut Bo Huang verfasserin aut Liangqian Fan verfasserin aut Lijuan Yu verfasserin aut Guozhu He verfasserin aut Likou Zou verfasserin aut Shuzhi Fu verfasserin aut Limei Hu verfasserin aut Mingshu Jiang verfasserin aut In Water MDPI AG, 2010 11(2019), 5, p 1086 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:11 year:2019 number:5, p 1086 https://doi.org/10.3390/w11051086 kostenfrei https://doaj.org/article/586caa4433ab4582813c2507817f0b4f kostenfrei https://www.mdpi.com/2073-4441/11/5/1086 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 5, p 1086
spelling	10.3390/w11051086 doi (DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Xiaoling Liu verfasserin aut Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands. methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes Jingting Wang verfasserin aut Xiaoying Fu verfasserin aut Hongbing Luo verfasserin aut Bruce C. Anderson verfasserin aut Ke Zhang verfasserin aut Mei Li verfasserin aut Bo Huang verfasserin aut Liangqian Fan verfasserin aut Lijuan Yu verfasserin aut Guozhu He verfasserin aut Likou Zou verfasserin aut Shuzhi Fu verfasserin aut Limei Hu verfasserin aut Mingshu Jiang verfasserin aut In Water MDPI AG, 2010 11(2019), 5, p 1086 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:11 year:2019 number:5, p 1086 https://doi.org/10.3390/w11051086 kostenfrei https://doaj.org/article/586caa4433ab4582813c2507817f0b4f kostenfrei https://www.mdpi.com/2073-4441/11/5/1086 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 5, p 1086
allfields_unstemmed	10.3390/w11051086 doi (DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Xiaoling Liu verfasserin aut Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands. methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes Jingting Wang verfasserin aut Xiaoying Fu verfasserin aut Hongbing Luo verfasserin aut Bruce C. Anderson verfasserin aut Ke Zhang verfasserin aut Mei Li verfasserin aut Bo Huang verfasserin aut Liangqian Fan verfasserin aut Lijuan Yu verfasserin aut Guozhu He verfasserin aut Likou Zou verfasserin aut Shuzhi Fu verfasserin aut Limei Hu verfasserin aut Mingshu Jiang verfasserin aut In Water MDPI AG, 2010 11(2019), 5, p 1086 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:11 year:2019 number:5, p 1086 https://doi.org/10.3390/w11051086 kostenfrei https://doaj.org/article/586caa4433ab4582813c2507817f0b4f kostenfrei https://www.mdpi.com/2073-4441/11/5/1086 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 5, p 1086
allfieldsGer	10.3390/w11051086 doi (DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Xiaoling Liu verfasserin aut Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands. methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes Jingting Wang verfasserin aut Xiaoying Fu verfasserin aut Hongbing Luo verfasserin aut Bruce C. Anderson verfasserin aut Ke Zhang verfasserin aut Mei Li verfasserin aut Bo Huang verfasserin aut Liangqian Fan verfasserin aut Lijuan Yu verfasserin aut Guozhu He verfasserin aut Likou Zou verfasserin aut Shuzhi Fu verfasserin aut Limei Hu verfasserin aut Mingshu Jiang verfasserin aut In Water MDPI AG, 2010 11(2019), 5, p 1086 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:11 year:2019 number:5, p 1086 https://doi.org/10.3390/w11051086 kostenfrei https://doaj.org/article/586caa4433ab4582813c2507817f0b4f kostenfrei https://www.mdpi.com/2073-4441/11/5/1086 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 5, p 1086
allfieldsSound	10.3390/w11051086 doi (DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f DE-627 ger DE-627 rakwb eng TC1-978 TD201-500 Xiaoling Liu verfasserin aut Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands. methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes Jingting Wang verfasserin aut Xiaoying Fu verfasserin aut Hongbing Luo verfasserin aut Bruce C. Anderson verfasserin aut Ke Zhang verfasserin aut Mei Li verfasserin aut Bo Huang verfasserin aut Liangqian Fan verfasserin aut Lijuan Yu verfasserin aut Guozhu He verfasserin aut Likou Zou verfasserin aut Shuzhi Fu verfasserin aut Limei Hu verfasserin aut Mingshu Jiang verfasserin aut In Water MDPI AG, 2010 11(2019), 5, p 1086 (DE-627)611729008 (DE-600)2521238-2 20734441 nnns volume:11 year:2019 number:5, p 1086 https://doi.org/10.3390/w11051086 kostenfrei https://doaj.org/article/586caa4433ab4582813c2507817f0b4f kostenfrei https://www.mdpi.com/2073-4441/11/5/1086 kostenfrei https://doaj.org/toc/2073-4441 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 5, p 1086
language	English
source	In Water 11(2019), 5, p 1086 volume:11 year:2019 number:5, p 1086
sourceStr	In Water 11(2019), 5, p 1086 volume:11 year:2019 number:5, p 1086
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	methane emission integrated vertical-flow constructed wetland ethanol carbon source Hydraulic engineering Water supply for domestic and industrial purposes
isfreeaccess_bool	true
container_title	Water
authorswithroles_txt_mv	Xiaoling Liu @@aut@@ Jingting Wang @@aut@@ Xiaoying Fu @@aut@@ Hongbing Luo @@aut@@ Bruce C. Anderson @@aut@@ Ke Zhang @@aut@@ Mei Li @@aut@@ Bo Huang @@aut@@ Liangqian Fan @@aut@@ Lijuan Yu @@aut@@ Guozhu He @@aut@@ Likou Zou @@aut@@ Shuzhi Fu @@aut@@ Limei Hu @@aut@@ Mingshu Jiang @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	611729008
id	DOAJ074214608
language_de	englisch
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callnumber-first	T - Technology
author	Xiaoling Liu
spellingShingle	Xiaoling Liu misc TC1-978 misc TD201-500 misc methane emission misc integrated vertical-flow constructed wetland misc ethanol misc carbon source misc Hydraulic engineering misc Water supply for domestic and industrial purposes Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
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topic_title	TC1-978 TD201-500 Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands methane emission integrated vertical-flow constructed wetland ethanol carbon source
topic	misc TC1-978 misc TD201-500 misc methane emission misc integrated vertical-flow constructed wetland misc ethanol misc carbon source misc Hydraulic engineering misc Water supply for domestic and industrial purposes
topic_unstemmed	misc TC1-978 misc TD201-500 misc methane emission misc integrated vertical-flow constructed wetland misc ethanol misc carbon source misc Hydraulic engineering misc Water supply for domestic and industrial purposes
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title	Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
ctrlnum	(DE-627)DOAJ074214608 (DE-599)DOAJ586caa4433ab4582813c2507817f0b4f
title_full	Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
author_sort	Xiaoling Liu
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author_browse	Xiaoling Liu Jingting Wang Xiaoying Fu Hongbing Luo Bruce C. Anderson Ke Zhang Mei Li Bo Huang Liangqian Fan Lijuan Yu Guozhu He Likou Zou Shuzhi Fu Limei Hu Mingshu Jiang
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title_sort	methane emissions driven by adding a gradient of ethanol as carbon source in integrated vertical-flow constructed wetlands
callnumber	TC1-978
title_auth	Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
abstract	This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands.
abstractGer	This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands.
abstract_unstemmed	This work aims to investigate the methane emissions from integrated vertical-flow constructed wetlands (IVCWs) when ethanol is added as an external carbon source. In this study, a gradient of ethanol (0, 2, 4, 8, 16 and 32 mmol/L) was added as the carbon source in an IVCW planted with <i<Cyperus alternifolius</i< L. The results showed that the methane emission flux at an ethanol concentration of 32 mmol/L was 32.34 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that of the control experiment (0 mmol/L) and that the methane emission flux at an ethanol concentration of 16 mmol/L was 5.53 g CH<sub<4</sub< m<sup<−2</sup< day<sup<−1</sup< less than that at 0 mmol/L. In addition, variations in the water quality driven by the different ethanol concentrations were found, with a redox potential range of −64 mV to +30 mV, a pH range of 6.6−6.9, a chemical oxygen demand (COD) removal rate range of 41% to 78%, and an ammonia nitrogen removal rate range of 59% to 82% after the ethanol addition. With the average CH<sub<4</sub<-C/TOC (%) value of 35% driven by ethanol, it will be beneficial to understand that CH<sub<4</sub<-C/TOC can be considered an ecological indicator of anthropogenic methanogenesis from treatment wetlands when driven by carbon sources or carbon loading. It can be concluded that adding ethanol as an external carbon source can not only meet the water quality demand of the IVCW treatment system but also stimulate and increase the average CH<sub<4</sub< emissions from IVCWs by 23% compared with the control experiment. This finding indicates that an external carbon source can stimulate more CH<sub<4</sub< emissions from IVCWs and shows the importance of carbon sources during sewage treatment processes when considering greenhouse emissions from treated wetlands.
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container_issue	5, p 1086
title_short	Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands
url	https://doi.org/10.3390/w11051086 https://doaj.org/article/586caa4433ab4582813c2507817f0b4f https://www.mdpi.com/2073-4441/11/5/1086 https://doaj.org/toc/2073-4441
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Methane Emissions Driven by Adding a Gradient of Ethanol as Carbon Source in Integrated Vertical-Flow Constructed Wetlands

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