Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/27994
DC FieldValueLanguage
dc.contributor.authorKeliri, Eleni-
dc.contributor.authorAdamou, Panayiota-
dc.contributor.authorEfstathiou, Nektarios-
dc.contributor.authorAntoniou, Maria G.-
dc.date.accessioned2023-03-10T10:43:40Z-
dc.date.available2023-03-10T10:43:40Z-
dc.date.issued2022-06-02-
dc.identifier.citation13o Πανελλήνιο Επιστημονικό Συνέδριο Χημικής Μηχανικής, 2022, 2-4 Ιουνίου, Πάτρα, Ελλάδαen_US
dc.identifier.urihttps://hdl.handle.net/20.500.14279/27994-
dc.description.abstractThe past years, hydrogen peroxide (H2O2) has been introduced as an environmentally friendly method to combat in-situ toxic cyanobacteria blooms because of its selective oxidation and zero waste production. Treatment with H2O2 proved to be efficient for several occasions and blooming events as it selectively suppresses cyanobacteria by inhibiting their photosynthetic activity [1,2]. However, blooms of Microcystissp. that were more persistent required higher H2O2 doses (> 7 mg/L) during treatment, doses that found to cause mobility issues to the zooplankton community of the aquatic ecosystem [3]. Calcium peroxide (CaO2) granules are an alternative to liquid H2O2 due to their slow H2O2 release properties, simulating multiple H2O2 doses [4]. In this study, concentrations of 0.5, 1.0, and 2.0 g/L CaO2 granules were (a) added into a surface water matrix to investigate their H2O2 releasing properties, (b) enclosed in four types of textile materials as delivery systems to evaluate their overall oxidant releasing capacity and (c) enclosed systems A – C were applied on a dense Microcystis sp. bloom to further investigate their suitability to combat cyanobacteria. No difference was observed between the maximum H2O2 concentrations of the direct application of granules and the fabric delivery systems of types A – C, which released up to 12 mg/L H2O2 from 2.0 g/L CaO2 granules. Fabric system type D had the lowest H2O2 releasing capacity (2.0 mg/L of H2O2 from 2.0 g/L CaO2 granules). Treatment experiments showed that granules enclosed in fabrics (GEF) type B of concentration 2 g/L and type C concentrations of 1 g/L and 2g/L were sufficient to reduce the photosynthetic activity of Microcystis species (<1000 RFU), proving that these delivery systems have the potential to become a more environmentally friendly alternative to H2O2. The process minimizes granules availability into the water matrix, and hence eliminate adverse impact on nontargeted species. Moreover, GEF systems promote circular economy by implementing practices that make use of reused and recycled fabrics.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectoxidationen_US
dc.subjectcyanobacteriaen_US
dc.subjectcalcium peroxideen_US
dc.subjectgranulesen_US
dc.subjectfabricsen_US
dc.titleCalcium peroxide (CaO2) granules enclosed in textile materials as H2O2 delivery systems to mitigate Microcystis sp.en_US
dc.typeConference Papersen_US
dc.linkhttps://pesxm13.chemeng.upatras.gr/en_US
dc.collaborationCyprus University of Technologyen_US
dc.subject.categoryChemical Engineeringen_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.relation.conference13o Πανελλήνιο Επιστημονικό Συνέδριο Χημικής Μηχανικήςen_US
cut.common.academicyear2021-2022en_US
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_c94f-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairetypeconferenceObject-
crisitem.author.deptDepartment of Chemical Engineering-
crisitem.author.deptDepartment of Chemical Engineering-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-0738-6068-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation
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