Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions

Sewers are known as longitudinal reactors where gases such as methane, nitrous oxide and hydrogen sulphide can be produced. However, gaseous emissions have been mainly assessed in wastewater treatment plants (WWTP). This article presents a critical review of studies that quantify the generation of t...

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Autores: Eijo Rio, Elena, Petit-Boix, Anna|||0000-0003-2048-2708, Villalba, Gara|||0000-0001-6392-0902, Suárez Ojeda, María Eugenia|||0000-0003-2520-2701, Rieradevall, Joan|||0000-0003-3360-6829, Gabarrell Durany, Xavier|||0000-0003-1730-4337, Marín, Desirée, Amores, Maria José, Aldea, Xavier
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:145988
Acceso en línea:https://ddd.uab.cat/record/145988
https://dx.doi.org/urn:doi:10.1016/j.jece.2015.07.006
Access Level:acceso abierto
Palabra clave:Sewers
Greenhouse Gases
Urban Wastewater
N2O
CH4
H2S
Sustainability
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spelling Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissionsa review and case studiesEijo Rio, ElenaPetit-Boix, Anna|||0000-0003-2048-2708Villalba, Gara|||0000-0001-6392-0902Suárez Ojeda, María Eugenia|||0000-0003-2520-2701Rieradevall, Joan|||0000-0003-3360-6829Gabarrell Durany, Xavier|||0000-0003-1730-4337Marín, DesiréeAmores, Maria JoséAldea, XavierSewersGreenhouse GasesUrban WastewaterN2OCH4H2SSustainabilitySewers are known as longitudinal reactors where gases such as methane, nitrous oxide and hydrogen sulphide can be produced. However, gaseous emissions have been mainly assessed in wastewater treatment plants (WWTP). This article presents a critical review of studies that quantify the generation of these gases in sewers and aims to identify the existing research gaps. Differences in sampling methods and site selection, as well as a limited number of studies, result in incoherent comparisons. To address some of these gaps, sampling campaigns were conducted in two Spanish cities. Results showed that wet wells were the most important sources of gases with concentrations up to 321 μg CH4 Lair-1 and 6.8 μg N2O Lair-1. Regarding emission factors, in the case of Calafell, the estimated annual emissions were 18.6 kg CH4 year-1 and 0.3 kg H2S year-1 in summer and 3.8 kg CH4 year-1 and 0.5 kg H2S year-1 in winter. About Betanzos, these values were 24.6 kg CH4 year-1 and 0.5 kg N2O year-1 in summer and 10 kg CH4 year-1 in winter. The summer campaign resulted in greater gas concentration than in the winter season for both cities, suggesting that temperature is a key parameter. We conclude that gas emissions from sewers are significant compared to those of WWTPs resulting in an important contribution to the carbon footprint. Further work needs to be done to assess the gas production along the entire sewer networks, which can result in very different emission factors depending on the sewer components. 22015-01-0120152015-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/145988https://dx.doi.org/urn:doi:10.1016/j.jece.2015.07.006reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Educación, Cultura y Deporte https://doi.org/10.13039/501100003176 FPU13/01273European Commission https://doi.org/10.13039/501100000780 LIFE10/000520open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/3.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1459882026-06-06T12:50:31Z
dc.title.none.fl_str_mv Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
a review and case studies
title Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
spellingShingle Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
Eijo Rio, Elena
Sewers
Greenhouse Gases
Urban Wastewater
N2O
CH4
H2S
Sustainability
title_short Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
title_full Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
title_fullStr Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
title_full_unstemmed Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
title_sort Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions
dc.creator.none.fl_str_mv Eijo Rio, Elena
Petit-Boix, Anna|||0000-0003-2048-2708
Villalba, Gara|||0000-0001-6392-0902
Suárez Ojeda, María Eugenia|||0000-0003-2520-2701
Rieradevall, Joan|||0000-0003-3360-6829
Gabarrell Durany, Xavier|||0000-0003-1730-4337
Marín, Desirée
Amores, Maria José
Aldea, Xavier
author Eijo Rio, Elena
author_facet Eijo Rio, Elena
Petit-Boix, Anna|||0000-0003-2048-2708
Villalba, Gara|||0000-0001-6392-0902
Suárez Ojeda, María Eugenia|||0000-0003-2520-2701
Rieradevall, Joan|||0000-0003-3360-6829
Gabarrell Durany, Xavier|||0000-0003-1730-4337
Marín, Desirée
Amores, Maria José
Aldea, Xavier
author_role author
author2 Petit-Boix, Anna|||0000-0003-2048-2708
Villalba, Gara|||0000-0001-6392-0902
Suárez Ojeda, María Eugenia|||0000-0003-2520-2701
Rieradevall, Joan|||0000-0003-3360-6829
Gabarrell Durany, Xavier|||0000-0003-1730-4337
Marín, Desirée
Amores, Maria José
Aldea, Xavier
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Sewers
Greenhouse Gases
Urban Wastewater
N2O
CH4
H2S
Sustainability
topic Sewers
Greenhouse Gases
Urban Wastewater
N2O
CH4
H2S
Sustainability
description Sewers are known as longitudinal reactors where gases such as methane, nitrous oxide and hydrogen sulphide can be produced. However, gaseous emissions have been mainly assessed in wastewater treatment plants (WWTP). This article presents a critical review of studies that quantify the generation of these gases in sewers and aims to identify the existing research gaps. Differences in sampling methods and site selection, as well as a limited number of studies, result in incoherent comparisons. To address some of these gaps, sampling campaigns were conducted in two Spanish cities. Results showed that wet wells were the most important sources of gases with concentrations up to 321 μg CH4 Lair-1 and 6.8 μg N2O Lair-1. Regarding emission factors, in the case of Calafell, the estimated annual emissions were 18.6 kg CH4 year-1 and 0.3 kg H2S year-1 in summer and 3.8 kg CH4 year-1 and 0.5 kg H2S year-1 in winter. About Betanzos, these values were 24.6 kg CH4 year-1 and 0.5 kg N2O year-1 in summer and 10 kg CH4 year-1 in winter. The summer campaign resulted in greater gas concentration than in the winter season for both cities, suggesting that temperature is a key parameter. We conclude that gas emissions from sewers are significant compared to those of WWTPs resulting in an important contribution to the carbon footprint. Further work needs to be done to assess the gas production along the entire sewer networks, which can result in very different emission factors depending on the sewer components.
publishDate 2015
dc.date.none.fl_str_mv 2
2015-01-01
2015
2015-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/145988
https://dx.doi.org/urn:doi:10.1016/j.jece.2015.07.006
url https://ddd.uab.cat/record/145988
https://dx.doi.org/urn:doi:10.1016/j.jece.2015.07.006
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Educación, Cultura y Deporte https://doi.org/10.13039/501100003176 FPU13/01273
European Commission https://doi.org/10.13039/501100000780 LIFE10/000520
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/3.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/3.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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