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Mitigating ammonia and greenhouse gas emissions from stored pig slurry using chemical additives and biochars

2022Journal article Open access
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dc.contributor.authorPereira, José L. S.
dc.contributor.authorPerdigão, Adelaide
dc.contributor.authorMarques, Francisco
dc.contributor.authorWessel, Dulcineia F.
dc.contributor.authorTrindade, Henrique
dc.contributor.authorFangueiro, David
dc.date.accessioned2023-01-23T18:13:40Z
dc.date.available2023-01-23T18:13:40Z
dc.date.issued2022
dc.description.abstract: Slurry storage is a significant source of NH3 and greenhouse gas (GHG) emissions. The aim of this laboratory study was to assess the effects of different chemical additives and biochars on the emissions of NH3 , N2O, CO2 , and CH4 during the short-term storage of pig slurry. The experiment was performed using Kilner jars filled with raw slurry as control and six treatment additives (5% w/w): acidified slurry, alkalinized slurry, neutralized slurry, agroforestry biochar, cardoon biochar, and elderberry biochar. The gas emissions were measured for 30 days, and the composition of the slurries was determined. During short-term storage, the results of this laboratory study indicated that the NH3 emissions were reduced by 58% by acidification and by 20% by the biochars (Agroforestry, Cardoon, and Elderberry treatments), while neutralization reduced this loss by only 12%. Nitrous oxide emissions were not reduced by the chemical additives (Acidified, Alkalinized, and Neutralized treatments), while this loss was increased by 12% by the biochars. Carbon dioxide, CH4 , and global warming potential emissions were not affected by the chemical additives and biochars. Furthermore, the absence of differences between the biochars may be related to their similar composition. Regarding the influence of the studied additives on NH3 losses, it can be concluded that acidification was the best mitigation measure and the biochars were quite similar due to their composition. Furthermore, neutralization had the advantage of sanitizing the slurry, but only had a mild impact on NH3 preservationpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPereira, J.L.S.; Perdigão, A.; Marques, F.; Wessel, D.F.; Trindade, H.; Fangueiro, D. Mitigating ammonia and greenhouse gas emissions from stored pig slurry using chemical additives and biochars. Agronomy 2022, 12, 2744.pt_PT
dc.identifier.doihttps://doi.org/10.3390/ agronomy12112744pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/27001
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relationUID/AGR/04129/2020pt_PT
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationWASTECLEAN PROJ/IPV/ID&I/ 019pt_PT
dc.relationWASTE2VALUE PDR2020-1.0.1-FEADER-032314pt_PT
dc.relation.publisherversionhttps://www.mdpi.com/journal/agronomypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectanimal slurrypt_PT
dc.subjectbiocharpt_PT
dc.subjectchemical additivept_PT
dc.subjectgaseous emissionspt_PT
dc.subjectmitigation measurept_PT
dc.subjectslurry additivept_PT
dc.titleMitigating ammonia and greenhouse gas emissions from stored pig slurry using chemical additives and biocharspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.citation.issue11pt_PT
oaire.citation.titleAgronomypt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFangueiro
person.givenNameDavid
person.identifier.ciencia-id2C1E-55EC-D6C9
person.identifier.orcid0000-0002-6101-9210
person.identifier.scopus-author-id17134928600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb48e1880-8682-4508-8aae-dc68814c9177
relation.isAuthorOfPublication.latestForDiscoveryb48e1880-8682-4508-8aae-dc68814c9177
relation.isProjectOfPublication7a6510b5-ce03-44ea-88c5-007d0ab7329c
relation.isProjectOfPublication.latestForDiscovery7a6510b5-ce03-44ea-88c5-007d0ab7329c

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