Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry

Detalhes bibliográficos
Autor(a) principal: Fangueiro, D.
Data de Publicação: 2010
Outros Autores: Gusmão, M., Surgy, S., Cabral, F.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/2611
Resumo: RAMIRAN International Conference
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spelling Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurrypig slurrysoil incorporationcarbon dioxideacidificationRAMIRAN International ConferenceLarge amounts of pig slurry are produced each year in Portugal leading to environmental problems such as water and air pollution. Previous studies have reported that livestock production is the main source of anthropogenic ammonia (NH3) emissions in Europe (Kai et al., 2008) and an important source of greenhouse gases (Weiske and Petersen, 2006). Effluent treatment has been promoted to improve slurry management and to reduce its environmental impact (Sommer and Hutchings, 2001, Fangueiro et al., 2008a). Solid-liquid separation of slurry is a useful tool at the farm level producing valuable fractions, a liquid that can be used for direct fertilisation and a solid fraction that can be composted (Fangueiro et al., 2008b). Alternatively, acidification of slurry has been proposed to reduce ammonia (NH3) emissions during storage and field application (Kai et al., 2008). Previous works (Misselbrook et al., 2005; Fangueiro et al., 2008a) reported that higher NH3 emissions occurred during storage of liquid fraction of slurry or manure with low dry matter content, probably due to a reduced crust formation that decreases NH3 emissions. Hence, acidification of the liquid fraction of slurry is strongly recommended. Slurry acidification is common practice in The Netherlands and Denmark (Schils et al., 1999; Eriksen et al., 2008) but this technology still needs to be improved to avoid hazards. It is expected that this technology will be used in more countries since the European Directive (2001/81/CE) demands a decrease of atmospheric pollutants such as NH3: targets for lower NH3 emissions have been already set in Spain (Castrillon et al., 2009). Nevertheless, the acidification process leads to significant carbon dioxide (CO2) emissions (Vandré and Clemens, 1997). Such CO2 release is problematic when a closed system of slurry acidification is used (when acidified slurry is flushed back to pig houses) since it may lead to foam formation (Vandré and Clemens, 1997; Borst, 2001). Nevertheless, Fangueiro et al. (2010) reported that acidification of slurry or derived fractions led to a decrease in CO2 emissions following soil addition relative to non acidified materials. The aim of the present work was to measure the CO2 emissions during the acidification process of the liquid fraction of pig slurry and its subsequent impact during storage and after soil incorporation.Cordovil, C. e Ferreira, L.Repositório da Universidade de LisboaFangueiro, D.Gusmão, M.Surgy, S.Cabral, F.2010-12-07T11:20:45Z2010-092010-09-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10400.5/2611eng978-972-8669-47-8info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-20T19:06:32Zoai:repositorio.ul.pt:10400.5/2611Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T19:06:32Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
title Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
spellingShingle Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
Fangueiro, D.
pig slurry
soil incorporation
carbon dioxide
acidification
title_short Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
title_full Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
title_fullStr Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
title_full_unstemmed Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
title_sort Assessment of CO2 emissions during acidification, storage and after incorporation to soil of pig slurry
author Fangueiro, D.
author_facet Fangueiro, D.
Gusmão, M.
Surgy, S.
Cabral, F.
author_role author
author2 Gusmão, M.
Surgy, S.
Cabral, F.
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Fangueiro, D.
Gusmão, M.
Surgy, S.
Cabral, F.
dc.subject.por.fl_str_mv pig slurry
soil incorporation
carbon dioxide
acidification
topic pig slurry
soil incorporation
carbon dioxide
acidification
description RAMIRAN International Conference
publishDate 2010
dc.date.none.fl_str_mv 2010-12-07T11:20:45Z
2010-09
2010-09-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/2611
url http://hdl.handle.net/10400.5/2611
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 978-972-8669-47-8
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cordovil, C. e Ferreira, L.
publisher.none.fl_str_mv Cordovil, C. e Ferreira, L.
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
_version_ 1817549452277186560

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