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In situ methane enrichment with vacuum application to produce biogas with higher methane content

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dc.contributor.authorAKGÜL, DENİZ
dc.contributor.authorÇALLI, BARIŞ
dc.contributor.authorsSengur O., AKGÜL D., ÇALLI B.
dc.date.accessioned2024-06-26T11:38:20Z
dc.date.available2024-06-26T11:38:20Z
dc.date.issued2024-01-01
dc.description.abstractSludge produced in sewage treatment plants is an important source of organic matter to be used in anaerobic digestion to produce energy-rich biogas. The biogas produced in anaerobic digesters has a critical impact on achieving carbon neutrality and improving energy self-sufficiency. After effective upgrading, biogas can be converted into biomethane with an increased CH4 content, resulting in a higher volumetric energy value. Upgrading biogas to biomethane thus not only improves its energy content but also broadens its potential uses. In this study, it was aimed at enrich CH4 by removing dissolved CO2 from the digestate using a vacuum, leveraging the solubility differences of gases in liquid. In this context, two digesters (R-T and R–C) were operated for 194 days, and the effect of vacuum on in-situ methane enrichment was investigated. The vacuum was only applied to the test reactor (R-T), and the CH4 percentage was increased from 63 to 87, 80, and 75% in the vacuum exposure time intervals of 30, 10, and 5 min, respectively. Extended durations were not tested, as the rate of enrichment decreased sharply after 30 min. The maximum energy requirement of a vacuum application was estimated at 0.124 kWh/ m3 methane. Conversely, vacuum application did not cause any deterioration in biogas production, and the methane yields were similar in both reactors. Keywords Biogas upgrading, Carbon dioxide, Digestate, Biomethane, Waste activated sludge, Negative pressure
dc.identifier.citationSengur O., AKGÜL D., ÇALLI B., "In situ methane enrichment with vacuum application to produce biogas with higher methane content", Environmental Science and Pollution Research, 2024
dc.identifier.doi10.1007/s11356-024-33881-y
dc.identifier.issn0944-1344
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85195578633&origin=inward
dc.identifier.urihttps://hdl.handle.net/11424/297087
dc.language.isoeng
dc.relation.ispartofEnvironmental Science and Pollution Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEczacılık
dc.subjectMeslek Bilimleri
dc.subjectFarmasötik Toksikoloji
dc.subjectYaşam Bilimleri
dc.subjectSağlık Bilimleri
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectPharmacology and Therapeutics
dc.subjectProfessional Sciences
dc.subjectPharmaceutical Toxicology
dc.subjectLife Sciences
dc.subjectHealth Sciences
dc.subjectNatural Sciences
dc.subjectEngineering and Technology
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectYaşam Bilimleri (LIFE)
dc.subjectMühendislik
dc.subjectFarmakoloji ve Toksikoloji
dc.subjectMÜHENDİSLİK, ÇEVRE
dc.subjectTOKSİKOLOJİ
dc.subjectEngineering, Computing & Technology (ENG)
dc.subjectLife Sciences (LIFE)
dc.subjectENGINEERING
dc.subjectPHARMACOLOGY & TOXICOLOGY
dc.subjectENGINEERING, ENVIRONMENTAL
dc.subjectTOXICOLOGY
dc.subjectÇevre Kimyası
dc.subjectFizik Bilimleri
dc.subjectKirlilik
dc.subjectSağlık, Toksikoloji ve Mutajenez
dc.subjectEnvironmental Chemistry
dc.subjectPhysical Sciences
dc.subjectPollution
dc.subjectHealth, Toxicology and Mutagenesis
dc.subjectBiogas upgrading
dc.subjectBiomethane
dc.subjectCarbon dioxide
dc.subjectDigestate
dc.subjectNegative pressure
dc.subjectWaste activated sludge
dc.titleIn situ methane enrichment with vacuum application to produce biogas with higher methane content
dc.typearticle
dspace.entity.typePublication
local.avesis.iddd39864a-fb7d-47ca-b048-009f32a57acc
local.indexed.atPUBMED
local.indexed.atSCOPUS
relation.isAuthorOfPublication4a206775-ac1b-411c-ba29-f25f6a52df64
relation.isAuthorOfPublication2e20fe96-469a-44e0-88b2-e56450a93cf6
relation.isAuthorOfPublication.latestForDiscovery4a206775-ac1b-411c-ba29-f25f6a52df64

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