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dc.contributor.authorSalmi, Pauliina
dc.contributor.authorRyymin, Kalle
dc.contributor.authorKarjalainen, Anna K.
dc.contributor.authorMikola, Anna
dc.contributor.authorUurasjärvi, Emilia
dc.contributor.authorTalvitie, Julia
dc.date.accessioned2021-06-02T06:39:11Z
dc.date.available2021-06-02T06:39:11Z
dc.date.issued2021
dc.identifier.citationSalmi, P., Ryymin, K., Karjalainen, A. K., Mikola, A., Uurasjärvi, E., & Talvitie, J. (2021). Particle balance and return loops for microplastics in a tertiary-level wastewater treatment plant. <i>Water Science and Technology</i>, <i>84</i>(1), 89-100. <a href="https://doi.org/10.2166/wst.2021.209" target="_blank">https://doi.org/10.2166/wst.2021.209</a>
dc.identifier.otherCONVID_89778089
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/76137
dc.description.abstractMicroplastics (MPs) from households, stormwater, and various industries are transported to wastewater treatment plants (WWTPs), where a high proportion of them are captured before discharging their residuals to watersheds. Although recent studies have indicated that the removed MPs are mainly retained in wastewater sludge, sludge treatment processes have gained less attention in MP research than water streams at primary, secondary, and tertiary treatments. In this study, we sampled twelve different process steps in a tertiary-level municipal WWTP in central Finland. Our results showed that, compared to the plant influent load, three times more MPs circulated via reject water from the sludge centrifugation back to the beginning of the treatment process. Especially fibrous MPs were abundant in the dewatered sludge, whereas fragment-like MPs were observed in an aqueous stream. We concluded that, compared to the tertiary effluent, sludge treatment is the major exit route for MPs into the environment, but sludge treatment is also a return loop to the beginning of the process. Our sampling campaign also demonstrated that WWTPs with varying hydraulic conditions (such as the one studied here) benefit from disc filter–based tertiary treatments in MP removal.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherIWA Publishing
dc.relation.ispartofseriesWater Science and Technology
dc.rightsCC BY 4.0
dc.subject.otherenzymatic purification
dc.subject.othermicroplastics
dc.subject.otherreject water
dc.subject.otherreturn loop
dc.subject.otherwastewater sludge
dc.titleParticle balance and return loops for microplastics in a tertiary-level wastewater treatment plant
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202106023373
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineYmpäristötiedefi
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineEnvironmental Scienceen
dc.contributor.oppiaineAquatic Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange89-100
dc.relation.issn0273-1223
dc.relation.numberinseries1
dc.relation.volume84
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 The Authors
dc.rights.accesslevelopenAccessfi
dc.subject.ysomikroroskat
dc.subject.ysojäteveden käsittely
dc.subject.ysojätevesiliete
dc.subject.ysovedenpuhdistus
dc.subject.ysojätevedenpuhdistamot
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p27844
jyx.subject.urihttp://www.yso.fi/onto/yso/p17761
jyx.subject.urihttp://www.yso.fi/onto/yso/p17938
jyx.subject.urihttp://www.yso.fi/onto/yso/p15306
jyx.subject.urihttp://www.yso.fi/onto/yso/p8098
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.datasethttp://urn.fi/URN:NBN:fi:jyu-202009035741
dc.relation.doi10.2166/wst.2021.209
jyx.fundinginformationThis study was funded by Jyväskylän Seudun Puhdistamo Ltd, which operates the Nenäinniemi WWTP. Maaja Vesitekniikan Tuki Ry supported the writing of this manuscript.
datacite.isSupplementTo.doi10.17011/jyx/dataset/71624
datacite.isSupplementTo.urlhttps://jyx.jyu.fi/handle/123456789/71624
datacite.isSupplementedBy.doi10.17011/jyx/dataset/71624
datacite.isSupplementedBy.urlhttps://jyx.jyu.fi/handle/123456789/71624
datacite.isSupplementedBySalmi, Pauliina; Ryymin, Kalle; Karjalainen, Anna; Mikola, Anna; Uurasjärvi, Emilia; Talvitie, Julia (2020). Original data for article: Particle balance and return loops for microplastics in a tertiary-level wastewater treatment plant. V. 1.9.2020. https://jyx.jyu.fi/handle/123456789/71624. <a href="https://doi.org/10.17011/jyx/dataset/71624">https://doi.org/10.17011/jyx/dataset/71624</a>


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