Nitrogen Recovery from Landfill Leachate Using Lab- and Pilot-Scale Membrane Contactors : Research into Fouling Development and Membrane Characterization Effects

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorRighetto, Ilaria
dc.contributor.authorAl-Juboori, Raed A.
dc.contributor.authorKaljunen, Juho Uzkurt
dc.contributor.authorHuynh, Ngoc
dc.contributor.authorMikola, Anna
dc.contributor.departmentWater and Environmental Eng.
dc.contributor.departmentDepartment of Built Environment
dc.contributor.departmentDepartment of Bioproducts and Biosystems
dc.date.accessioned2022-10-19T06:42:52Z
dc.date.available2022-10-19T06:42:52Z
dc.date.issued2022-09
dc.descriptionFunding Information: This research received funding from Ministry of the Environment in Finland RAKI2 project VN/2250/2019 and from Maa- ja vesitekniikan tuki r.y. (MVTT). Funding Information: This work was supported by Maa- ja Vesitekniikan tuki r.y. (MVTT). The authors are grateful to Aino Peltola for her assistance with the laboratory analyses. The authors are thankful to Antti Louhio’s help with designing the lab reactors. The authors would also like to acknowledge the support from Onni Lehtikuja with conducting laboratory tests. Publisher Copyright: © 2022 by the authors.
dc.description.abstractMembrane contactor technology affords great opportunities for nitrogen recovery from waste streams. This study presents a performance comparison between lab- and pilot-scale membrane contactors using landfill leachate samples. Polypropylene (PP) and polytetrafluoroethylene (PTFE) fibers in different dimensions were compared in terms of ammonia (NH3) recovery on a lab scale using a synthetic ammonium solution. The effect of pre-treating the leachate with tannin coagulation on nitrogen recovery was also evaluated. An ammonia transfer on the lab and pilot scale was scrutinized using landfill leachate as a feed solution. It was found that PTFE fibers performed better than PP fibers. Among PTFE fibers, the most porous one (denoted as M1) had the highest NH3 flux of 19.2 g/m2.h. Tannin pre-treatment reduced fouling and increased NH3, which in turn improved nitrogen recovery. The mass transfer coefficient of the lab-scale reactor was more than double that of the pilot reactor (1.80 × 10−7 m/s vs. 4.45 × 10−7 m/s). This was likely attributed to the difference in reactor design. An analysis of the membrane surface showed that the landfill leachate caused a combination of inorganic and organic fouling. Cleaning with UV and 0.01 M H2O2 was capable of removing the fouling completely and restoring the membrane characteristics.en
dc.description.versionPeer revieweden
dc.format.extent17
dc.format.mimetypeapplication/pdf
dc.identifier.citationRighetto , I , Al-Juboori , R A , Kaljunen , J U , Huynh , N & Mikola , A 2022 , ' Nitrogen Recovery from Landfill Leachate Using Lab- and Pilot-Scale Membrane Contactors : Research into Fouling Development and Membrane Characterization Effects ' , Membranes , vol. 12 , no. 9 , 837 . https://doi.org/10.3390/membranes12090837en
dc.identifier.doi10.3390/membranes12090837
dc.identifier.issn2077-0375
dc.identifier.otherPURE UUID: 3f75d9af-b5a0-4ef8-89b4-f5e8bbdbd6b4
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/3f75d9af-b5a0-4ef8-89b4-f5e8bbdbd6b4
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85138749580&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/89130703/membranes_12_00837_v2.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/117199
dc.identifier.urnURN:NBN:fi:aalto-202210195987
dc.language.isoenen
dc.publisherMDPI AG
dc.relation.ispartofseriesMEMBRANESen
dc.relation.ispartofseriesVolume 12, issue 9en
dc.rightsopenAccessen
dc.subject.keywordammonia transfer rate
dc.subject.keywordlandfill leachate
dc.subject.keywordmembrane contactor
dc.subject.keywordmembrane fouling
dc.subject.keywordnutrient recovery
dc.subject.keywordtannins
dc.titleNitrogen Recovery from Landfill Leachate Using Lab- and Pilot-Scale Membrane Contactors : Research into Fouling Development and Membrane Characterization Effectsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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