Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/29564
DC FieldValueLanguage
dc.contributor.authorAndronikou, Maria-
dc.contributor.authorLytras, Nikolaos-
dc.contributor.authorChrysanthou, Georgia-
dc.contributor.authorKoutsokeras, Loukas E.-
dc.contributor.authorConstantinides, Georgios-
dc.contributor.authorStylianou, Marinos-
dc.contributor.authorAgapiou, Agapios-
dc.contributor.authorVyrides, Ioannis-
dc.date.accessioned2023-06-29T10:38:45Z-
dc.date.available2023-06-29T10:38:45Z-
dc.date.issued2022-07-08-
dc.identifier.citationEnvironmental Science and Pollution Research, 2022, vol. 29, no. 58, pp. 87245-87256en_US
dc.identifier.issn09441344-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/29564-
dc.description.abstractThe current study presented a novel process of biogas upgrading to biomethane (higher than 97%) based on anaerobic sludge and zero-valent iron (ZVI) system. When ZVI was added into an aquatic system with anaerobic granular sludge (AnGrSl) under anaerobic abiotic conditions, H2 was generated. Then, the H2 and CO2 were converted by the hydrogenotrophic methanogens to CH4. Biogas upgrading to biomethane was achieved in 4 days in the AnGrSl system (50 g L-1 ZVI, initial pH 5 and 20 g L-1 NaHCO3). In this system, when zero-valent scrap iron (ZVSI) was added instead of ZVI, a more extended period (21 days) was required to achieve biogas upgrading. X-ray diffraction (XRD) analysis revealed that the materials in a reactor with CO2 or biogas headspace, exhibited a mixture of ferrite and the iron carbonate phase of siderite (FeCO3), with the latter being the dominant phase. VOCs analysis in raw biogas (in the system of anaerobic sludge and ZVI) highlighted the reduction of low mass straight- and branched-chain alkanes (C6-C10). Also, H2S and NH3 were found to be substantially reduced when the anaerobic sludge was exposed to ZVI compared to the cases where ZVI was not added. This study found that simultaneously with biogas upgrading, VOCs, H2S and NH3 can be removed in a system of ZVI or ZVSI and AnGrSl under aquatic anaerobic conditions.en_US
dc.language.isoenen_US
dc.relation.ispartofEnvironmental science and pollution research internationalen_US
dc.rights© Springer Natureen_US
dc.subjectAnaerobic mix culture microorganismsen_US
dc.subjectBiogas enhancementen_US
dc.subjectPowder and scrub ZVIen_US
dc.subjectHydrogenotrophic methanogensen_US
dc.subjectVOC reductionen_US
dc.subjectH2S removalen_US
dc.titleBiogas upgrading to methane and removal of volatile organic compounds in a system of zero-valent iron and anaerobic granular sludgeen_US
dc.typeArticleen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationUniversity of Cyprusen_US
dc.subject.categoryMechanical Engineeringen_US
dc.journalsSubscriptionen_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1007/s11356-022-21750-5en_US
dc.identifier.pmid35802326-
dc.identifier.scopus2-s2.0-85133570312-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85133570312-
dc.relation.issue58en_US
dc.relation.volume29en_US
cut.common.academicyear2022-2023en_US
dc.identifier.spage87245en_US
dc.identifier.epage87256en_US
item.fulltextNo Fulltext-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
item.languageiso639-1en-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.deptDepartment of Chemical Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-4143-0085-
crisitem.author.orcid0000-0003-1979-5176-
crisitem.author.orcid0000-0001-8316-4577-
crisitem.author.parentorgFaculty of Engineering and Technology-
crisitem.author.parentorgFaculty of Engineering and Technology-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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