Research on a New Method of Water Recovery from Biogas Plant Digestate

cris.virtual.author-orcid0000-0002-7750-9265
cris.virtual.author-orcid0000-0002-3162-1198
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid723cb16b-5343-4f7e-a53a-308ccdb5aae2
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid4cff8168-b6cd-4dca-8c55-0b9f2f7dd173
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enDigestate is a product with valuable fertilizing properties, remaining after the anaerobic fermentation process. An essential feature of the substance in question is its high water content of up to 97%. To improve the fertilizer value of the digestate, it is necessary to dehydrate it to produce a concentrated product. This paper determined the possibility of dewatering the digestate using an innovative reactor design. The study, conducted on a laboratory scale, used digestate from a Polish biogas plant. The dewatering technique described in the paper is based on the evaporation and condensation of water vapor on the inner surface of the reactor dome. The condensate accumulated on the leach trough and was directed to a storage tank. During the weeks of testing, 11.5 kg of condensate was separated from the initial weight of the digestate (32 kg), with a dry weight of 6.11%. The resulting condensate from dehydration had an average pH value of 9.0 and an average ammonium nitrogen content of 2.07 g∙kg−1. The economic calculations made in the paper allowed for estimating the expected savings associated with the management of digestate in Poland. The research showed the proposed technology’s high potential for dewatering digestate under laboratory conditions.
dc.affiliationWydział Inżynierii Środowiska i Inżynierii Mechanicznej
dc.affiliation.instituteKatedra Inżynierii Biosystemów
dc.contributor.authorNowak, Mateusz
dc.contributor.authorCzekała, Wojciech
dc.contributor.authorBojarski, Wiktor
dc.contributor.authorDach, Jacek
dc.date.access2024-11-25
dc.date.accessioned2024-11-25T12:21:14Z
dc.date.available2024-11-25T12:21:14Z
dc.date.copyright2024-11-04
dc.date.issued2024
dc.description.abstract<jats:p>Digestate is a product with valuable fertilizing properties, remaining after the anaerobic fermentation process. An essential feature of the substance in question is its high water content of up to 97%. To improve the fertilizer value of the digestate, it is necessary to dehydrate it to produce a concentrated product. This paper determined the possibility of dewatering the digestate using an innovative reactor design. The study, conducted on a laboratory scale, used digestate from a Polish biogas plant. The dewatering technique described in the paper is based on the evaporation and condensation of water vapor on the inner surface of the reactor dome. The condensate accumulated on the leach trough and was directed to a storage tank. During the weeks of testing, 11.5 kg of condensate was separated from the initial weight of the digestate (32 kg), with a dry weight of 6.11%. The resulting condensate from dehydration had an average pH value of 9.0 and an average ammonium nitrogen content of 2.07 g∙kg−1. The economic calculations made in the paper allowed for estimating the expected savings associated with the management of digestate in Poland. The research showed the proposed technology’s high potential for dewatering digestate under laboratory conditions.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,0
dc.description.number2
dc.description.points140
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume17
dc.identifier.doi10.3390/en17215505
dc.identifier.issn1996-1073
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2071
dc.identifier.weblinkhttps://www.mdpi.com/1996-1073/17/21/5505
dc.languageen
dc.relation.ispartofEnergies
dc.relation.pagesart. 5505
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.endigestate
dc.subject.enbiogas
dc.subject.enwater recovery
dc.subject.enseparation
dc.subject.enenergy use
dc.subject.ensustainability
dc.titleResearch on a New Method of Water Recovery from Biogas Plant Digestate
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue21
oaire.citation.volume17