Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility

[EN] The use of air cleaning systems to reduce ammonia emissions from animal houses is increasing. These systems are normally used in order to comply with local or national regulations of ammonia emission. Therefore, accurate determination of the proportion of ammonia being removed by these systems...

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Autores: Estellés, F.|||0000-0001-6774-6075, Calvet, S.|||0000-0001-6639-9892, Melse, R.W., Ogink, N. W. M.
Formato: artículo
Fecha de publicación:2011
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/65111
Acesso em linha:https://riunet.upv.es/handle/10251/65111
Access Level:acceso abierto
Palavra-chave:Acid scrubber
Ammonia
Efficiency
Methods
N balance
PRODUCCION ANIMAL
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spelling Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig FacilityEstellés, F.|||0000-0001-6774-6075Calvet, S.|||0000-0001-6639-9892Melse, R.W.Ogink, N. W. M.Acid scrubberAmmoniaEfficiencyMethodsN balancePRODUCCION ANIMAL[EN] The use of air cleaning systems to reduce ammonia emissions from animal houses is increasing. These systems are normally used in order to comply with local or national regulations of ammonia emission. Therefore, accurate determination of the proportion of ammonia being removed by these systems is crucial. There are two main methods available to measure ammonia removal efficiency of scrubbers: air balance (based on the measurement of ammonia concentrations in air) and combined water-air balance (in which it is also necessary to determine the amount of nitrogen recovered in the liquid phase). The first method is simpler to establish, while the second method might provide deeper information about the processes occurring. The main aim of this work was to assess, in terms of the variability of the results, the use of these two methods to evaluate the efficiency of an acid packed bed scrubber on a pig farm. An acid packed bed scrubber (70% NH3 removal) was monitored during ten complete 24 h cycles for ammonia concentrations, airflow rates, and nitrogen accumulation in the acid solution basin. The average efficiency calculated using the air balance method was 71% (+/- 4%), close to the design value of 70%, while the average efficiency when using the combined water-air balance method was 255% (+/- 53%). The accumulation and precipitation of ammonium salts in the packing material seem to be the main cause of the high variability and inaccuracy of the combined water-air balance method observed for this type of scrubber. According to these results, it is recommended to use the air balance method when determining the ammonia removal efficiency for acid packed bed scrubbers similar to the one studied here. According to the variability of the results observed in this work, at least 24 measurement days are needed in order to keep the relative error below 5% when using the air balance method to determine the ammonia removal efficiency of an acid packed bed scrubberWe would like to thank the Netherlands Ministry of Economic Affairs, Agriculture, and Innovation and the Netherlands Ministry of Infrastructure and the Environment for financial support. We also acknowledge the owner of the facility where the study was conducted for allowing the access to the building and for help in many other ways.American Society of Agricultural and Biological EngineersDepartamento de Ciencia AnimalInstituto Universitario de Ciencia y Tecnología AnimalEscuela Técnica Superior de Ingeniería Agronómica y del Medio NaturalMinistry of Economic Affairs, Agriculture and Innovation, HolandaMinistry of Infrastructure and the Environment, HolandaRepositorio Institucional de la Universitat Politècnica de València Riunet20112011-09-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/65111reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/651112026-06-13T07:49:27Z
dc.title.none.fl_str_mv Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
title Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
spellingShingle Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
Estellés, F.|||0000-0001-6774-6075
Acid scrubber
Ammonia
Efficiency
Methods
N balance
PRODUCCION ANIMAL
title_short Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
title_full Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
title_fullStr Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
title_full_unstemmed Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
title_sort Evaluation of the NH3 Removal Efficiency of an Acid Packed Bed Scrubber Using Two Methods: A Case Study in a Pig Facility
dc.creator.none.fl_str_mv Estellés, F.|||0000-0001-6774-6075
Calvet, S.|||0000-0001-6639-9892
Melse, R.W.
Ogink, N. W. M.
author Estellés, F.|||0000-0001-6774-6075
author_facet Estellés, F.|||0000-0001-6774-6075
Calvet, S.|||0000-0001-6639-9892
Melse, R.W.
Ogink, N. W. M.
author_role author
author2 Calvet, S.|||0000-0001-6639-9892
Melse, R.W.
Ogink, N. W. M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Ciencia Animal
Instituto Universitario de Ciencia y Tecnología Animal
Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural
Ministry of Economic Affairs, Agriculture and Innovation, Holanda
Ministry of Infrastructure and the Environment, Holanda
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Acid scrubber
Ammonia
Efficiency
Methods
N balance
PRODUCCION ANIMAL
topic Acid scrubber
Ammonia
Efficiency
Methods
N balance
PRODUCCION ANIMAL
description [EN] The use of air cleaning systems to reduce ammonia emissions from animal houses is increasing. These systems are normally used in order to comply with local or national regulations of ammonia emission. Therefore, accurate determination of the proportion of ammonia being removed by these systems is crucial. There are two main methods available to measure ammonia removal efficiency of scrubbers: air balance (based on the measurement of ammonia concentrations in air) and combined water-air balance (in which it is also necessary to determine the amount of nitrogen recovered in the liquid phase). The first method is simpler to establish, while the second method might provide deeper information about the processes occurring. The main aim of this work was to assess, in terms of the variability of the results, the use of these two methods to evaluate the efficiency of an acid packed bed scrubber on a pig farm. An acid packed bed scrubber (70% NH3 removal) was monitored during ten complete 24 h cycles for ammonia concentrations, airflow rates, and nitrogen accumulation in the acid solution basin. The average efficiency calculated using the air balance method was 71% (+/- 4%), close to the design value of 70%, while the average efficiency when using the combined water-air balance method was 255% (+/- 53%). The accumulation and precipitation of ammonium salts in the packing material seem to be the main cause of the high variability and inaccuracy of the combined water-air balance method observed for this type of scrubber. According to these results, it is recommended to use the air balance method when determining the ammonia removal efficiency for acid packed bed scrubbers similar to the one studied here. According to the variability of the results observed in this work, at least 24 measurement days are needed in order to keep the relative error below 5% when using the air balance method to determine the ammonia removal efficiency of an acid packed bed scrubber
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-09-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/65111
url https://riunet.upv.es/handle/10251/65111
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
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
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Society of Agricultural and Biological Engineers
publisher.none.fl_str_mv American Society of Agricultural and Biological Engineers
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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